quote:Recordaantal aardbevingen op Canarisch eilandNog nooit eerder werden er zoveel aardbevingen achter elkaar geregistreerd op het kleine vulkanische eilandje El Hierro, het kleinste van de Canarische Eilanden. De reeks van maar liefst 720 bevinkjes heeft de overheid van deze eilandengroep voor de kust van West Afrika ertoe doen besluiten om voor het eerst in de geschiedenis een vergadering bijeen te roepen van het Stuurcomité van Vulkanische Monitoring. Dit comité werd opgericht om specifieke plannen te realiseren, die de burgerbevolking dienen te beschermen en noodplannen voor vulkanische risico’s moeten ontwikkelen. Inmiddels wordt gesproken over een ‘significante dreiging van seismische activiteit’.Het Nationaal Geografisch Instituut (IGN) en het Volcanologische Instituut van de Canarische eilanden blijft nauwlettend de aardbevingen in de gaten houden, waarvan de kracht van de bevingen (elke dag!) ligt tussen de 1 en 3 op de Richterschaal. De meerderheid van de bevingen vindt plaats tussen 5 en 15 km diepte.Volgens de autoriteiten betekent deze seismische activiteit nog niet direct dat een grotere, significante aardbeving zal plaatsvinden. Het merendeel van de bevingen die zijn geregistreerd, vonden plaats in het Noord Westen van het 280 vierkante kilometer kleine eilandje, bij het plaatsje El Golfo (zie foto hieronder). Een aardbeving op deze plaats zorgde er zo’n 50.000 jaar geleden voor, dat er een enorme landverschuiving plaatsvond, waarbij de helft van de vulkaan in zee gleed. Hierdoor ontstond een ca. 100 meter hoge tsunami die naar de overzijde van de Atlantische oceaan zou zijn gegleden. Schuin tegenover dit eilandje, in het verlengde van de resterende halve kratermond, ligt het Noord Amerikaanse continent..
quote:El Hierro Earthquake Swarm Enters Third WeekThe intensity of earthquakes recorded on the smallest of the Canary Islands, El Hierro, has increased slightly during the last 24 hours. However, the total number of earthquakes recorded daily has lessened since the earthquake swarm initially began on 17 July.The total number of tremors recorded during the past two weeks has now exceeded 1,050, according to the Instituto Geografico Nacional (IGN).The majority of the earth tremors ranged between 1-2 magnitude, but during the past 24 hours there have been least five tremors measuring in excess of 2.0 magnitude on the Richter Scale. A 2.4 magnitude earthquake was recorded at 4:56 p.m. local time on Sunday (31 July 2011).Approximately 50 earth tremors were recorded on Sunday, according to local earthquake monitoring agency Actualidad Volcánica de Canarias (AVCAN). The number is slightly down on the number of tremors recorded on Saturday and significantly less than the 195 earthquakes recorded on 22 July.
quote:The vast majority of the tremors have been recorded in the northwest of the 278.5-square-kilometre island at El Golfo, the location of a massive landslide that created a 100-metre high tsunami almost 50,000 years ago.The earthquake swarm, prompted the Canary Islands Government to convene the first ever meeting on 22 July of the Steering Committee and Volcanic Monitoring, reflected in the Specific Plan Protection Civil and Emergency for Volcanic Risk, given what it described “the significant increase in seismic activity”. The Committee met again on Friday 29 July to discuss the low magnitude seismic activity. It reported that it had stepped up its seismic monitoring operations to identify the source of the earthquakes.Following an evaluation of seismic and volcanological information gathered by the IGN and volcanological Institute of the Canary Islands, the Committee agreed to activate “monitoring and surveillance mechanisms necessary to coordinate the actions of civilian self-protection and information to people listed in the Plan” (translated from Spanish press release). It remains unclear, however, if the unprecedented seismic activitiy on El Hierro is a precursor to a possible future increase in earthquake or volcanic activity.Earthquake swarms are events where a local area experiences sequences of many earthquakes striking in a relatively short period of time. The length of time used to define the swarm itself varies, but the United States Geological Survey (USGS) points out that an event may last for days, weeks, or months.El Hierro’s Volcanic/Seismic PastEl Hierro is situated in the most southwestern extreme of the Canaries. The island was formed after three successive eruptions, and consequent accumulations, the island emerged from the ocean as an imposing triangular pyramid crowned by a volcano more than 2,000 metres high.The volcanic activity, principally at the convergence of the three ridges, resulted in the continual expansion of the island. A mere 50,000 years ago, as a result of seismic tremors which produced massive landslides, a giant piece of the island cracked off, crashed down into the ocean and scattered along the seabed. This landslide of more than 300km3 gave rise to the impressive amphitheatre of the El Golfo valley and at the same time caused a tsunami that most likely rose over 100 metres high and probably reached as far as the American coast.
quote:The Swarm of earthquakes which started during July of 2011 have continued into August with 3277 earthquakes being recorded since August 1st 2011 until 23rd August 2011, this is a significant rise of earthquakes and has Experts keeping a close eye on the island.The news may have lost interest when the swarm started in early July with over 1300 earthquakes being recorded for the month which was a huge increase in activity compared to the average 300 micro-quakes the area experiences a month.But burying these facts wont make it go away, as figures and records show it is getting much worse with already 3277 Earthquakes being recorded in just the past 23 days. These are the figures that should cover the whole YEAR not 23 DAYS.2010 the area registered 3661 earthquakes for the year.2009 the area registered 4536 earthquakes for the year.2008 the area registered 5158 earthquakes for the year.2007 the area registered 5384 earthquakes for the year.2006 the area registered 3689 earthquakes for the year.2005 the area registered 4229 earthquakes for the year.For 2011 the total stands at 6614, of which 4617 have happened in just the past 7 weeks.2010 eruptions of Eyjafjallajökull saw thousands of Micro-quakes prior to the Eruption of this volcano.(A microearthquake (or microquake) is a very low intensity earthquake which is usually three or less on the Richter scale. Microquakes occur often near volcanoes as they approach an eruption, and frequently in certain regions exploited for geothermal energy)El Hierro Volcano: Is one of the Smallest of the Canary Islands, the origins of the Island date back some 100 million years when the Ocean floor shifted with the movement of the Earth's mantle. The crust cracked into a three pointed star releasing flows of Magma.After 3 Eruptions, the island emerged from the ocean as an imposing volcano more than 2,000 Meters high.It has now been over 200 years since the last Eruption but El Hierro although being the smallest Island has the Largest number of Volcanoes with over 500 open Sky Cones and another 300 covered by the most recent outflows.There has been uncertainty surrounding reports of a historical eruption taking place in 1793.
quote: Op woensdag 24 augustus 2011 12:34 schreef spijkerbroek het volgende:Hmm zat ik net te kijken of ik in m'n vakantie in oktober naar de Canarische Eilanden wil, lees ik dit topic.. toch nog maar ff goed over nadenken Tevens is de TT fout. Gran Canaria =/= El Hierro
quote:More than 1,000 calls were made to the emergency number after the quake on the south east of the island. There was no damage or injuries. The 112 emergency number on the Canary Islands received more than 1,000 calls from concerned members of the public after an earthquake in Agüimes, on the south east of Gran Canaria, on Monday afternoon. None reported any injury or damage to property however. The quake at 2.15 pm was a 3.4 magnitude on the Richter scale, with the epicentre at sea off the coast of Playa del Inglés. Its effects were also felt in Santa Brígida, Telde, La Aldea de San Nicolás and Santa Lucía de Tirajana. There was a small tremor on El Hierro earlier on Monday, where EFE notes more than 3,700 seismic movements have been detected since July 19 this year.
quote: Op woensdag 24 augustus 2011 12:51 schreef zenkelly het volgende:[..]--------------------------------------------------------------------------------Zowel het eilandje El Hierro, maar sinds maandag ook Gran Canaria zelf, dus. Ik heb het idee, dat het hier om 2 verschillende epi-centra gaat?
quote: Op woensdag 24 augustus 2011 12:38 schreef Anakin24 het volgende:Als ik er zo naar kijk heb ik mijn vermoedens over een "boem" die daar gaat plaatsvinden Iets met een magmakamer die zich fijn aan het vullen is... tja en we kunnen er niks aan doen
quote:Magma under El Hierro building up?Well, we've been wondering when we might see more signs of magma rising underneath El Hierro in the Canary Island and now we seem to have got some. Over the last month, the island/volcano has experienced thousands of earthquakes that have waxed and waned in number, but seem to be increasing over time. A GPS survey of the area effected by the earthquakes has now found deformation - namely inflation - over part of the volcano. This inflation is on the order of ~1 cm over the last 20-25 days according to the Instituto Volcanologico de Canarias. There are also slightly increased carbon dioxide and temperature (above background) at the volcano as well. All of these signs add to up new magma rising in the volcano - So the big question becomes "does this mean an eruption is around the corner?" Well, my answer to that is a resounding "maybe". Sure, these are all signs of magma emplacement, but there is likely as much chance of it all "stalling" in the crust as an eruption occurring. It will be how these factors - earthquakes, deformation, gas emissions, temperature - change over the next weeks to months that will give us a better idea of whether we will see the first documented eruption at El Hierro since 550 B.C. (or 1793 A.D., depends on if you trust the historical reports from the late 18th century).
quote: Op donderdag 25 augustus 2011 11:36 schreef Frutsel het volgende:[..]MMMmmm(agma)... afwachten...
quote: Op woensdag 31 augustus 2011 11:59 schreef lipjes het volgende:en toen was het weer stil
quote:El Hierro: 6200 seismic events until 7 SeptemberThe Spanish Geographic Institute (IGN) reported that since 16 July, seismicity at Hierro was high above the background levels. Until 7 September more than 6,200 events had been located, most of them in the El Golfo area with hypocenters that were 10 km deep, all magnitudes were below 3. The seismic activity alternated between relatively calm periods and high-energy periods. GPS local network stations showed deformations of about 2 cm. High rates of carbon dioxide flux were measured in the anomalous area.Geologic Summary. The triangular island of Hierro is the SW-most and least studied of the Canary Islands. The massive Hierro shield volcano is truncated by a large NW-facing escarpment formed as a result of gravitational collapse of El Golfo volcano about 130,000 years ago. The steep-sided 1500-m-high scarp towers above a low lava platform bordering 12-km-wide El Golfo Bay, and three other large submarine landslide deposits occur to the SW and SE. Three prominent rifts oriented NW, NE, and south at 120 degree angles form prominent topographic ridges. The subaerial portion of the volcano consists of flat-lying Quaternary basaltic and trachybasaltic lava flows and tuffs capped by numerous young cinder cones and lava flows. Holocene cones and flows are found both on the outer flanks and in the El Golfo depression. Hierro contains the greatest concentration of young vents in the Canary Islands. Uncertainty surrounds the report of an historical eruption in 1793.
quote: Op donderdag 25 augustus 2011 13:38 schreef Keiichi het volgende:Over 3 weken ben ik daar in de buurt, ik zal wel even gaan kijken
quote:Canary Islands: The local authorities at El Hierro have raised the alert status to yellow based on increased seismicity - both in terms of number of earthquakes and intensity, some earthquakes as large as M3. This new level of alert (spanish) means that the government of the island will release regular updates on the activity and make sure that appropriate emergency measures are in place.
quote: Op woensdag 24 augustus 2011 13:04 schreef Hou-m-Nat het volgende:Heb ooit eens een documentaire gezien over deze breuklijn. Als deze rakker een grote klapper maakt dan is de enige kleine kans dat ik het hier overleef bovenop de Domtoren...
quote: Op maandag 26 september 2011 09:10 schreef Ivo1986 het volgende:[..]Denk je dat half Europa weg geblazen wordt?
quote:Island of El Hierro Prepares for possible Volcanic EruptionThe island of El Hierro in the Spanish Canary Islands is bracing itself for a possible volcanic eruption.Situated in the Atlantic Ocean off the west coast of Africa, the Canary Islands are all volcanic, but there has been no volcanic activity on El Hierro since 1793.However, a series of small earthquakes have been registered by sensors in the past two months and a quake of grade 3 on the Richter Scale registered last Thursday have caused the threat of volcanic activity to be raised from green to yellow for the first time in recent history.Saturday produced another stronger tremor of 3.4 on the Richter scale which was felt all over the island.Speaking to the El Pais newspaper, volcanologist, Juan Carlos Carracedo admitted an eruption on El Hierro would not be a major surprise."It is the youngest of the Canary Islands," he explained. "There is a ball of magma which is rising to the surface and it is stationed at the limit of the earth's crust. At the moment we do not know if that ball of magna will break the crust and cause an eruption."Rather than having one large crater, the volcano on el Hierro consists of around 250 small craters."Any eruption would form cones on the high zones of the island and lava flows which would flow to the sea, although they would do so at a speed that would be slow enough for the population to be evacuated. It is something that could happen in days, weeks or months," said Carracedo.El Hierro currently has a population of around 10,000 and regional government officials have begun informing them of evacuation protocols in case the worst should happen.The last volcanic eruption in the Canary Islands took place on the island of La Palma in 1971, while the mainland town of Lorca was devastated by an earthquake of 5.2 on the Richter scale in May this year.
quote:Situation worsens at El Hierro. 3,5 event widely felt, 5 events over 2,5 in the last 2 hours. #Volcano
quote: Op dinsdag 27 september 2011 18:50 schreef spijkerbroek het volgende:Op 1 oktober ga ik naar Gran Canaria.. ik zal m'n survivalkit maar meenemen
quote: Op dinsdag 27 september 2011 19:23 schreef Frutsel het volgende:is die earthquake proof?
quote: 2011-09-27 17:02:59.2 34min ago 27.68 N 18.06 W 14 3.4 CANARY ISLANDS, SPAIN REGION 2011-09-27 16:04:22.31hr 32min ago 27.63 N 18.06 W 11 2.6 CANARY ISLANDS, SPAIN REGION 2011-09-27 15:44:14.11hr 53min ago 27.68 N 18.08 W 17 3.8 CANARY ISLANDS, SPAIN REGION 2011-09-27 14:59:19.02hr 37min ago 27.68 N 18.07 W 16 2.5 CANARY ISLANDS, SPAIN REGION 2011-09-27 14:38:45.02hr 58min ago 27.59 N 17.99 W 11 3.6 CANARY ISLANDS, SPAIN REGION 2011-09-27 14:27:55.03hr 09min ago 27.68 N 18.08 W 17 2.6 CANARY ISLANDS, SPAIN REGION 2011-09-27 14:18:48.93hr 18min ago 27.63 N 18.02 W 13 2.7 CANARY ISLANDS, SPAIN REGION
quote: Op dinsdag 27 september 2011 19:39 schreef Frutsel het volgende:[..]Check die tijdsspanne... daar gaat echt iets niet goed
quote: Op dinsdag 27 september 2011 21:19 schreef Takkembah het volgende:Iemand al update inmiddels
quote:Evacuan a más de 300 personas de la Isla de El Hierro por aumento de riesgo sísmico
quote: Op woensdag 28 september 2011 11:42 schreef Scrummie het volgende:[ afbeelding ]Geen idee wat dit betekend maar zo'n absurd stijgende lijn lijkt me toch niet 'goed'.
quote:Fears are growing that the El Hierro volcano in The Canary Islands could soon erupt after seismic activity beneath the island increased dramatically during Tuesday and Wednesday.Over 150 earthquakes were recorded on the smallest of the Canary Islands during Tuesday prompting officials to evacuate some local residents, shut El Hierro’s main tunnel, and close local schools.At least 20 earthquakes, exceeding magnitude 3.0 on the Richter Scale, have been felt by local residents during the last 24 hours. The most recent earthquake, which measured 3.4 magnitude, was recorded just off the southern tip of the island at 07:04 am Wednesday.The rise in seismic activity last night prompted the Spanish Civil Guard (Guardia Civil) to advise almost 50 residents of the municipality of La Frontera to leave their homes because of landslide fears.Plans are also underway to evacuate more of the island’s 10,000 residents, according to Canarias7.es. The newspaper reported that two units of the Spanish military’s emergency intervention unit (EMU) will depart nearby island Tenerife this afternoon to assist in the possible evacuation of hundreds of El Hierro residents.Meanwhile, the island’s main tunnel (Tunel del Golfo), which links Frontera to Valverde, has been shut forcing motorists to travel across the 280-sq-km island via a mountain road. The Cabildo de El Hierro also has ordered the closure of schools on Wednesday.Hierro, a shield volcano, has had a single historic eruption from the Volcan de Lomo Negro vent in 1793. The eruption lasted approximately one month and produced lava flows.The Canary Islands Government commenced an in-depth geological survey of El Hierro earlier this month in an effort to determine the source of an earthquake swarm. The Government raised the volcanic risk level to ‘Yellow’ on Sunday, the highest alert status since an unprecedented earthquake swarm commenced in mid-July.The unprecedented seismic activity commenced on 19 July (the activity was first reported by iWeather Online on 26 July). In excess of 8,200 earthquakes have been recorded up to Wednesday, 28 September 2011.Up to last weekend, the majority of earth tremors ranged between 1 and 3 magnitude. However, the majority of quakes are now registering between 2 and 4 magnitude and are occuring at depth of 14-17 kilometres, according to the National Geographic Institute (IGN).Speaking to the El Pais newspaper, volcanologist Juan Carlos Carracedo suggested that an eruption on El Hierro would “not be a major surprise”. He explained: “It is the youngest of the Canary Islands. There is a ball of magma which is rising to the surface and it is stationed at the limit of the earth’s crust. At the moment we do not know if that ball of magna will break the crust and cause an eruption.”IGN Director, María José Blanco said that any eruption on El Hierro would most likely have a “low explosion value”. He added that an imminent eruption is unlikely.In the meantime, the frequent and increasingly intense earthquakes being felt throughout El mlrro are unlikely to appease the residents of and visitors to the tiny island.
quote:53 evacuated as seismic activity continues in Spanish island MADRID (Xinhua) -- A total of 53 people were evacuated from their homes on the Spanish island of El Hierro on Tuesday night due to seismic activity in the area. The evacuees were sheltered in school buildings or other relatives' homes in safe areas. In recent days, there has been increased seismic activity, raising fears of the first volcanic eruption on the island since 1793. There have been over 8,000 tremors registered since July. Although the vast majority of them have gone unnoticed by inhabitants, they have recently increased in intensity, tremors last week measuring 3.0 and 3.4 on the Richter scale. The threat of volcanic activity on the island was raised from green to yellow for the first time in recent history and 32 more tremors were registered on Monday, the strongest of them being 2.0 on the Richter scale. El Hierro, part of the Canary Islands in the Atlantic Ocean, is situated off the west coast of Africa and has a population of around 10,000. The recent seismic activity is thought to be caused by a ball of magma -- or molten rock -- pushing upwards beneath the earth's crust. Instead of having one large crater, the volcano on El Hierro consists of 250 smaller craters. If an eruption did occur, lava would escape from these vents and flow towards the sea. A single explosive event, such as that experienced in Mount St Helens in 1980, is not expected by geologists. This May, the Spanish mainland was hit by an 5.1 earthquake that took 10 lives and devastated buildings in Lorca in the south-west of the country.
quote:Scale of earthquakes seems to calm downThe Canary Islands Government and the Cabildo de El Hierro have decided Wednesday night that the schools of the island on Thursday resume normal activity, in view of recent scientific reports indicate that the scale of earthquakes seems to have slowed and has entered a stationary phase.However, it will be closed to traffic, risk of landslides, the tunnel that connects the island's capital, Valverde, to the valley of the Gulf (north), the most affected by earthquakes, as reported by the director general Security and Emergency of the Canarian Government, Juan Manuel Santana.This required to change school bus routes, so that children in the municipality of Frontera Valverde studying in his school reach across the top of the island.The half a hundred people on Tuesday were evicted from their homes in the town of Frontera spend another night outside their homes (most are staying with family and only a dozen remain in the dorm Valverde), but tomorrow review your situation and decide whether they can return.This was noted by the President of the Cabildo, Alpidio Armas, who has stressed that the islanders will have to learn to live with the situation presented in El Hierro from mid-July, a period in which the island has been rocked by more than 8,000 low-intensity earthquakes of volcanic origin, most imperceptible."This is a topic that we will have to learn to live, if not stopped. We're going to have to integrate into our lives, peace and responsibility," added Armas.The chairman of the council has insisted the message of tranquility that all authorities have been saying for days and stressed that the scientific reports indicate that the situation appears to have entered a stationary phase.In the same vein, Santana pointed out that such events are cyclical seismic events caused by the pressure of magma in the subsurface, so that "fall within the normal." In fact, the volcanic risk in light of El Hierro is still located in yellow, in a situation of "pre-alert."The Director General of Security of the Canarian Government has also explained that the latest information available indicates that the focus of the earthquake is shifting to the south of the island.
quote:The Canary Islands government radio alert to all operators of the impending El Hierro volcanic eruptionThe Canary Islands government radio alert to all operators of the impending El Hierro volcanic eruption on the island 12 kilometersScientists believe that in the next few hours can produce a 99% chance of eruptionMeasurements and forecasts made by scientists on the island of El Hierro and the whole structure of IGN have pointed to the competent authorities within the Pevolca activated by the Canarian Government to the volcanic eruption is expected for several days can occur in next few hours at a point in the sea to twelve miles off the coast southwest of the island, which correspond to the town of Frontera.The odds set by these scientists have risen to 99%, giving the reason Carracedo, which set the deadline for its experience and professional expertise long before any of that until now have come to the public.In order not to alarm the population is deciding when to make public a statement giving an account of this incident, but was ordered by radio high alert all operators to be prepared, especially in the EMU and its device that includes a shelter for 2,000 people, if it is considered that the entire population evacuated.At this time the technicians of the Canary Islands from the Cecoi El Hierro are already coordinating emergency resources and security and all air and sea operating when the eruption occurs.
quote:Vulkaan op Canarisch eiland staat op uitbarstenHet Spaanse Canarische eiland El Hierro kreeg sinds 19 juli al duizenden aardbevingen te verwerken, waardoor magma naar het aardoppervlak geduwd wordt. Er wordt dan ook gevreesd dat het tot een vulkaanuitbarsting komt. Lokale functionarissen deelden woensdag nog mee dat meer dan vijftig personen uit het noordelijke dorp Frontera werden geëvacueerd uit angst voor aardverschuivingen.Het leeuwendeel van de aardbevingen waren te zwak om door de eilandbewoners opgemerkt te worden, maar ze namen wel steeds toe in frequentie en intensiteit. Gisteren werden meer dan 100 trillingen opgetekend, waarvan de sterkste 3,8 op de magnitudeschaal haalde. Vandaag volgden opnieuw tientallen bevingen, waardoor de belangrijkste wegentunnel van het eiland werd afgesloten en honderden schoolkinderen thuis moesten blijven.Op het eiland bevindt zich ook één grote vulkaan en ongeveer 250 kraters. De autoriteiten zien echter geen dreigende vulkaanuitbarsting, dat gebeurde op El Hierro voor het laatst in 1793. Indien het toch zover zou komen, is het niet nodig om alle tienduizend inwoners te evacueren, zei veiligheidschef Juan Manuel Santana aan de krant El Pais.Veiligheidsverantwoordelijken zouden aan verschillende evacuatiescenario's aan het werken zijn. Ook worden overal op het eiland vergaderingen gehouden om de inwoners te informeren wat er moet gebeuren in geval van een uitbarsting.
quote: Op vrijdag 30 september 2011 10:21 schreef Scrummie het volgende:Is er nou wel of geen risico tot uitbarsting? Ik lees zoveel tegenstrijdige dingen :S. Dan worden mensen geevacueerd, en even later worden ze weer terug gestuurd en is er geen beving meer waargenomen :S.
quote: Op vrijdag 30 september 2011 10:23 schreef Frutsel het volgende:[..]Check de link uit de OP... geen bevingen? Volgens mij alleen vanochtend al dertig ofzo:D http://www.01.ign.es/ign/(...)a=1&cantidad_dias=10
quote: Op vrijdag 30 september 2011 10:51 schreef stan12 het volgende:http://www.avcan.org/
quote:spreek je toevallig Spaans?
quote: Op vrijdag 30 september 2011 11:08 schreef stan12 het volgende:[..]Nee, helaas niet! Lees hier al jaren mee maar heb me net maar eens aangemeld. Vind vulkanen ook zeer vet en vooral na mijn vakantie in IJsland.
quote: Op vrijdag 30 september 2011 11:03 schreef Frutsel het volgende:[..]spreek je toevallig Spaans?
quote: Op vrijdag 30 september 2011 11:57 schreef Takkembah het volgende:[..]Huh, je kunt toch ook Engels klikken op de site?
quote:Hierro Volcano - John SeachEl Hierro, Canary Islands, Spain27.73 N, 18.03 Wsummit elevation 1500 mshield volcanoEl Hierro volcano is the westernmost, youngest and smallest of the Canary Islands. In the 2nd century A.D., Ptolemy considered it the western-most position of the world.El Hierro Island covers an area of 278 sq km, and contains three well-defined ridges, arranged at approximately 120 degrees. According to the hotspot model of volcano formation, the current location of the Canary islands hotspot is under Hierro Island.El Hierro volcano is still in its juvenile stage of shield growth, and has been modified by gravitational spreading which caused gigantic landslides. There are three volcanic structures on El Hierro Island - elongated topographic ridge (the Southern Ridge) and two semi-circular volcanic cones (Tinor volcano, El Golfo volcano).Tinor Landslide was the earliest and directed to the northwest of Hierro Island.El Julan produced a 15 km wide embayment in the southwest of the island. The landslide was approximately 60–120 cubic km in volume, and covered 1600 sq km of ocean floor.Las Playas Landslide directed SE and had a volume of 25-35 cubic km.El Golfo, Debris AvalancheEl Golfo is a major debris avalanche on the northern flank of Hierro Island, dated about 13,000 years ago. It has a width of 15 km and a scarp height of 1000 m. The landslide deposited 150-180 cubic km of debris on the seafloor down to a depth of 3000 m.2011 UnrestAn earthquake swarm occurred at El Hierro volcano in July 2011 with 720 earthquakes measured in a week. The earthquakes were measured between magnitude 1-3, and most were at a depth of 5-15 km. The swarm occurred at El Golfo in the northwest of the island at the location of a landslide that created a 100 metre high tsunami about 50,000 years ago. The earthquakes were continuing at the end of September and some evacuations were ordered for people living near the volcano.
quote: Op vrijdag 30 september 2011 15:16 schreef spijkerbroek het volgende:En morgenochtend vroeg vlieg ik naar Gran Canaria... ff in de gaten houden
quote: Op zondag 2 oktober 2011 23:12 schreef Keiichi het volgende:De aardbevingen die er zijn, lijken in zuidelijke richting te trekken.-edit-Er zijn trouwens wel een hoop mensen die denken dat El Hierror net zo'n landslide kan veroorzaken als ze denken dat op La Palma zou gebeuren
quote: Op maandag 3 oktober 2011 11:19 schreef Jumparound het volgende:[..]En waarop baseren ze dat dan?
quote:2011-10-03 10:54:15.31hr 32min ago 27.64 N 18.07 W 17 2.8 CANARY ISLANDS, SPAIN REGION 2011-10-03 10:27:49.61hr 58min ago 27.63 N 18.07 W 14 2.7 CANARY ISLANDS, SPAIN REGION 2011-10-03 10:14:43.42hr 12min ago 27.63 N 18.08 W 15 3.4 CANARY ISLANDS, SPAIN REGION
quote: Op zondag 2 oktober 2011 10:13 schreef Biancavia het volgende:Heb je het overleefd?
quote: Op maandag 3 oktober 2011 14:27 schreef Frutsel het volgende:[..]Verleden misschien?[breaking] Vulkaanuitbarsting op Canarische Eilanden op komst?Al vaker aardverschuivingen geweest daar. Ook met tsunami[..]
quote: Op dinsdag 4 oktober 2011 07:03 schreef Jumparound het volgende:[..]dat met tsunami haal ik er niet uit. Alleen dat er heel veel materiaalt de zee in schuift...
quote: Op dinsdag 4 oktober 2011 07:17 schreef Basp1 het volgende:[..]Wanneer er veel materiaal de zee in zou schuiven heb je natuurlijk wel een tsunami te pakken. De vraag is dan alleen hoeveel volume verplaatst zou worden. Ik heb wel een andere vraag in een stukje hierboven staat dat de magma aan het bewegen is. Maar zitten er dan zulke grote open ruimtes in vulkanen dat daar de magma zo doorheen kan stromen?
quote: Op dinsdag 4 oktober 2011 07:26 schreef Keiichi het volgende:Magma maakt wel een weg
quote:Magma on the move in El Hierro, Canary IslandsThis is happening faster then I expected. But it seems that magma is now on the move upwards in El Hierro volcano in Canary Islands. This is evident by the earthquake patterns that are emerging from the volcano. Given the earthquake locations, most likely place for a eruption to take place is out on the ocean based on that. But sometimes magma can find different pathways up the surface without a lot of warning.Latest earthquake map from Instituto Geográfico Nacional that shows clearly the earthquake pattern since the dike intrusion did start in El Hierro. Copyright of this picture belongs to Instituto Geográfico Nacional.At the moment it is impossible to know when and where a eruption might start. It depends on many factors. But it is now clear that magma is on the move upwards. So far the magma seems to be around 10 km up in the earth crust under El Hierro. So it is clear that the magma is on the way up and most likely preparing for a eruption.
quote: Op dinsdag 4 oktober 2011 11:34 schreef Scrummie het volgende:[ afbeelding ]Energie stijgt nog steeds. Blijkbaar is grafiekje de druk die naar boven word opgebouwd (zoals Jumparound al zei, thanks nog). Op een ander forum word gezegd dat Mount St. Helens ging bij een druk van tussen de 10 en 16 (dacht ik).
quote:35mm deformation at El HierroThe Instituto Geografico Nacional (IGN) has reported surface deformations exceeding 35mm on the Spanish island of El Hierro, where residents have been alert for a possible volcanic eruption. The number of earthquakes recorded since July 17 on the smallest of The Canary Islands exceeded 9250 on Tuesday morning. IGN confirmed on Monday that 1172 earthquakes were recorded last week, the majority of which were located in the sea to the SW of the 280-sqkm island. 52 of the earthquakes were felt by the local population, estimated to be approximately 10,000. A further 10 earthquakes, exceeding 3.0 magnitude on the Richter Scale, were felt during Monday and early on Tuesday. Hierro, a shield volcano, has had a single historic eruption from the Volcan de Lomo Negro vent in 1793. The eruption lasted approximately one month and produced lava flows. The recent surge in the number and intensity of earthquakes prompted officials from the IGN and The Canary Islands Government to raise the alert level for the Hierro volcano to ‘Yellow’ late last month.Seismologists say the majority of the earthquake activity has shifted from El Golfo in the island’s northwest to beneath the Las Calmas Sea in the south. However, magma is now on the move upwards while the depth of earthquakes has become increasingly shallow in recent days with most being recorded at a depth of 10 to 14 kilometres. Movement of magma towards the surface signifies that a volcanic eruption is likely to happen, but the timing of such remains unclear. Volcanologist Juan Carlos Carracedo last week suggested that an eruption on El Hierro would “not be a major surprise”. He explained: “It is the youngest of the Canary Islands. There is a ball of magma which is rising to the surface and it is stationed at the limit of the earth’s crust. At the moment we do not know if that ball of magna will break the crust and cause an eruption.” IGN Director, María José Blanco said that any eruption on El Hierro would most likely have a “low explosion value”.A dramatic rise in recorded earthquakes on El Hierro last Tuesday prompted officials to evacuate some local residents, shut El Hierro’s main tunnel, and close local schools. The Spanish Civil Guard (Guardia Civil) advised almost 50 residents of the municipality of La Frontera to leave their homes because of landslide fears. Two units of the Spanish military’s emergency intervention unit (EMU) were also placed on standby to depart the nearby island of Tenerife to assist in the possible evacuation of hundreds of other El Hierro residents. Meanwhile, the island’s main tunnel (Tunel del Golfo), which links Frontera to Valverde, was shut forcing motorists to travel across the 280-sq-km island via a mountain road. The Cabildo de El Hierro also ordered the closure of schools on Wednesday.
quote:El Hierro scientist:'More worried about earthquakes'The Scientist in charge of the team studying the seismic activity on the Canary Island of El Hierro, Nemesio Pérez, has told the press how is is more concerned about earthquakes on the tiny island than he is of any Volcano eruption "Usually in the Canaries, they have not been that explosive, just trickles of lava. There are victims when there are earthquakes, which is why I am more concerned about the earthquakes rather than the eventual eruption."Perez, who is the scientific coordinator of the Canaries Institute of Volcanology (Involcan) continued : "Spain has a seismic alert system comparable to that of a third-world country," he says. "Predicting volcanic activity has three components: tremors, gas emissions and deformations. But in Spain, attention is only paid to the first stage."He told reporters how any volcanic eruption would not be rare, but the uncertainty stems from the fact that in El Hierro there isn't just one major volcano but around 500 vents on the island. As such, no one can be sure where the lava will flow if there does end up being an eruption.The problem that this causes is that it is impossible to monitor and cordon off each and evert vent, but each one could still produce potentially fatal toxic fumes.The Island residents have actually felt around 60 of the 9'000 recorded earthquakes over the past two months, however the frequency and strength has increased over the past two weeks.
quote:El Hierro Authorities to Educate Residents on VolcanoThe Authorities on the tiny island of El Hierro have taken the decision to interact and communicate with the local residents with regards to the situation surrounding the recent earthquake swarms.The various municipalities, together with the regional government of the Canary Islands, the National Geographic Institute and Volcanic Institute of the Canary Islands, have jointly launched the educational campaign titled " El Hierro : Living with our Volcano "A half-hour talk will be given to the public entitled "What to do if there is a volcanic eruption" in the Island's main town, Valverde, tomorrow afternoon, which will also run alongside an educational workshop for children titled " Playing with Volcanoes ".The regional minister for security and emergencies, Maria de Carmen Morales, told the press : "It shows the information we have published in a recent leaflet on volcanic activity, how residents can keep informed of the situation, how to make an emergency plan, and how to act before, during and after an earthquake. These issues will be useful not just now but will help us protect the Island and the residents in the future "The National Geographic Institute (IGN) confirmed earlier today that a total of 18 earthquakes have now been felt in El Hierro, that have had a magnitude greater or equal to 3.0 on the Richter scale and intensity III and IV.The lastest count shows 9'342 Earthquakes since the recent swarm began on July 17th, with some 1'128 of them being in the last 7 days.Read further news stories about the El Hierro Volcano by clicking the link HERE .
quote:Vulkaanuitbarsting Tenerife helpt aardverschuivingen te begrijpenAMSTERDAM - De ontdekking van een grote vulkaanuitbarsting op Tenerife van 733.000 jaar geleden werpt nieuw licht op aardverschuivingen. Zo is men in de toekomst mogelijk beter voorbereid op de gevolgen van dit soort grote catastrofes.Vulkanologen van de Universiteit van Leicester ontdekten op het Canarische eiland Tenerife een aardverschuiving ten gevolge van een grote vulkaanuitbarsting waarbij een deel van de zijkant van de vulkaan de zee in verdween.Ze publiceerden hun bevindingen in de oktober-editie van het tijdschrift Geology.BijzonderHet is bijzonder dat niet vrijwel de hele aardverschuiving door de uitbarsting de zee in verdwenen is. "Het is een van de best bewaarde en toegankelijke voorbeelden van zo’n ontzagwekkend fenomeen, omdat het puin van zulke aardverschuivingen zich meestal over de oceaanbodem verspreid en daardoor ontoegankelijk voor verdere studie", verklaart Dr. Branney, een van de onderzoekers.Het achtergebleven puin en gruis op Tenerife bevat onder andere blokken van snel afgekoeld stollingsgesteente. Radioactieve mineralen in de gestolde lava maakten het voor de onderzoekers makkelijk om zeer precies de datum van de uitbarsting te bepalen.KlimaatveranderingKlimaatverandering wordt vaak aangewezen als reden voor aardverschuivingen op eilanden in de oceaan. Dat was nu niet het geval. Een groeiende koepel van hete lava duwde van binnenuit de zijkant van de vulkaan naar buiten toe.Zulke gebeurtenissen zijn niet ongewoon, maar komen zeer onregelmatig voor. Ze begrijpen is daarom van belang omdat de effecten duizenden kilometers verderop grote problemen kunnen veroorzaken.
quote:2011-10-06 12:27:35.131min ago 27.67 N 18.04 W 13 3.1 CANARY ISLANDS, SPAIN REGION 2011-10-06 10:47:31.92hr 11min ago 27.69 N 18.04 W 14 2.8 CANARY ISLANDS, SPAIN REGION 2011-10-06 10:38:24.52hr 21min ago 27.67 N 18.04 W 12 2.5 CANARY ISLANDS, SPAIN REGION 2011-10-06 10:35:53.02hr 23min ago 27.66 N 18.02 W 14 2.7 CANARY ISLANDS, SPAIN REGION 2011-10-06 10:30:10.72hr 29min ago 27.68 N 18.03 W 16 2.5 CANARY ISLANDS, SPAIN REGION 2011-10-06 10:28:05.02hr 31min ago 27.67 N 18.03 W 12 2.6 CANARY ISLANDS, SPAIN REGION 2011-10-06 10:24:34.72hr 34min ago 27.69 N 18.03 W 16 2.5 CANARY ISLANDS, SPAIN REGION 2011-10-06 10:21:02.02hr 38min ago 27.69 N 18.02 W 16 2.5 CANARY ISLANDS, SPAIN REGION 2011-10-06 10:16:11.02hr 43min ago 27.68 N 18.03 W 16 2.6 CANARY ISLANDS, SPAIN REGION 2011-10-06 06:34:04.36hr 25min ago 27.69 N 18.05 W 13 2.6 CANARY ISLANDS, SPAIN REGION 2011-10-06 05:43:12.37hr 16min ago 27.69 N 18.04 W 12 2.8 CANARY ISLANDS, SPAIN REGION 2011-10-06 05:03:17.07hr 56min ago 27.67 N 18.04 W 12 3.2 CANARY ISLANDS, SPAIN REGION
quote: Op donderdag 6 oktober 2011 15:45 schreef bwt het volgende:is ook erg goed te zien op de seismogr. data van mijn vorige post.
quote:Earthquake activity on El Hierro intensifiesThe Instituto Geografico Nacional (IGN) has reported an increase in the intensity of earthquakes recorded on El Hierro, the smallest of The Canary Islands, during the last 24 to 36 hours. The number of earthquakes recorded since July 17 , 2011 on El Hierros has now reached 10,000, figures from the IGN confirm.The IGN also confirmed surface deformations exceeding 35mm on the 280-sqkm island, where residents have been put on alert for a possible volcanic eruption. However, seismologists have moved to reassure the local population that a volcanic eruption is not imminent.The agency confirmed on Friday that 890 earthquakes, most of them located in the sea to the SW of the island, have been recorded in the 7 days since 01 October, 2011. During this period, 76 earthquakes were felt by the island’s estimated 10,000 residents.Since Friday morning, there have been 14 earthquakes exceeding 3.0 on the Richter Scale with epicentres both North and South of the NW Ridge and depths between 10 and 15 km have been recorded. The strongest of the tremors measured 3.8 magnitude on the Richter Scale. A total of 17 earthquakes were felt by the local population.Hierro, a shield volcano, has had a single historic eruption from the Volcan de Lomo Negro vent in 1793. The eruption lasted approximately one month and produced lava flows.The recent surge in the number and intensity of earthquakes prompted officials from the IGN and The Canary Islands Government to raise the alert level for the Hierro volcano to ‘Yellow’ late last month. The alert remained in place on Saturday.Seismologists say the majority of the earthquake activity has shifted from El Golfo in the island’s northwest to beneath the Las Calmas Sea in the south.However, magma is now on the move upwards while the depth of earthquakes has become increasingly shallow in recent days with most being recorded at a depth of 9 to 14 kilometres. Movement of magma towards the surface signifies that a volcanic eruption is likely to happen, but the timing of such remains unclear.Volcanologist Juan Carlos Carracedo last week suggested that an eruption on El Hierro would “not be a major surprise”. He explained: “It is the youngest of the Canary Islands. There is a ball of magma which is rising to the surface and it is stationed at the limit of the earth’s crust. At the moment we do not know if that ball of magna will break the crust and cause an eruption.”IGN Director, María José Blanco said that any eruption on El Hierro would most likely have a “low explosion value”.
quote:Strongest quake so far hits El HierroUpdate 08/10 – 22:15 UTC : Tonight at 20:34 UTC, the strongest earthquake so far has occurred below El Hierro at a depth of 10 km (data EMSC). The earthquake had a magnitude of 4.3!IGN data2011/10/08 20:34:48.28 depth 12.5 km Magnitude 4.30Following IGN , the epicenter was approx. 600 meter out of the coast.Following IGN the earthquake was felt as an intensity MMI III earthquake (weak shaking).Earthquake-Report.com is convinced that the return of the evacuated people to their villages might be postponed for some time after this moderate volcanic earthquake. The evacuation took place after the authorities had to act because of landslide risk which could have been triggered by the quakes.At the other hand the number of earthquakes of M 2 or higher has decreased substantially today as their were only 4 since the last 20 hours.Update 07/10 – 23:30 UTC : The 2 strongest earthquakes today had a magnitude of 3.7 and 3.8 at a hypocenter depth in between 12 and 16 km. They occurred at 11:27 and 22:29 UTC. Normally this kind of earthquakes are felt by humans.
quote:During the night 17 earthquakes, 9 of them less than 10 km deep. to prof. 2, 3, 2, 2, 1, 2, 2, 1 and 1
quote: Op maandag 10 oktober 2011 08:47 schreef Scrummie het volgende:Ik lees hier en daar dat ze verwachten dat hij vandaag 'poef' doet? Iemand daar meer kijk op?
quote: Op maandag 10 oktober 2011 08:53 schreef Keiichi het volgende:[..]Graag de hierbron en daarbron kunnen we meekijken.
quote: Op maandag 10 oktober 2011 09:29 schreef Keiichi het volgende:Kan iemand de seismogram voor mij verklaren van vandaag?
quote: Op maandag 10 oktober 2011 09:41 schreef Keiichi het volgende:Overloaded zo weten we nog niets!
quote: Op maandag 10 oktober 2011 08:55 schreef Keiichi het volgende:http://www.avcan.org/inde(...)ha=10-10-2011&tipo=1eh?Wat een ruis! Of iets anders?
quote:The volcanologists warned a possible volcanic tremor early this morning from El HierroCanary Island volcanological Association, through its website on Facebook (Current Volcanic Canary Avcan), has publicly called the National Geographic Institute (about 9:30 hours) "to confirm or disprove the existence of the signal and make an interpretation of the current situation. "Avcan the social network said: "This morning, from 4:18 pm. Or so there has been registering at the station of El Hierro CHIE what could be a sign of volcanic tremor." The association notes that those tremors are typical "of active volcanoes and indicate magma movement," while begging the public to remain "very calm and avoid unnecessary alarm", since "if it is confirmed that the signal we see at the station CHIE of El Hierro is a tremor, would be within the predictability in the process that is lived on the island since last July. " Avcan current situation recalls the yellow light to monitor the seismic crisis of El Hierro, insists on asking "a lot of courage and peace" and stressed that "people should be aware of submissions from civil protection authorities."
quote:Submarine eruption occuring at El hierroSeismic monitoring services have been a small submarine eruption at 1,200 meters deep at sea seven miles from El Hierro.The phenomenon is ongoing and has occurred at 10.43 (local time) in the sea calms and has been a sudden change in the seismic process, as it has paralyzed for weeks tremors felt in the Canary Islands, as reported by experts to Canary Autonomic Radio.As reported Canarias7, four ships have been alert to the maritime authorities of the existence of volcanic activity south of La Restinga and about 500 meters deep.This same media reports that emergency services have issued instructions to all diving clubs of El Hierro to suspend any dive on its shores, which are among the most appreciated by fans of the sport because of its biological richness funds.The first since 1971If confirmed, this eruption was the first of which is recorded in Spain since 1971, when it emerged Teneguía volcano on the island of La Palma, Canary Islands too.The eruption may have started this morning on the southern coast of the island, the least populated.From 11.00 hours (local time) is met in Valverde, the capital of El Hierro, the monitoring group for this type of crisis set by the Civil Protection Special Plan and Emergency Response for Volcanic Risk (Pevolca) de Canarias.Following that meeting, the authorities are expected to offer a press conference to report on the details of what happened and security measures will be taken on the island.Earthquake of 4.3El Hierro has suffered since mid-July around 9600 earthquakes caused by magma activity in the basement of the island.Just today the eruption takes place two days after he recorded an earthquake of 4.3 magnitude on the Richter scale. This figure made him the most intense earthquake recorded by the National Geographic Institute (IGN) since last July 17, when earthquakes began on the island.The earthquake, which was felt throughout the island, caused no injury, but caused landslides on the outer slopes of the tunnels and on the road Roquille linking Tacorón to La Restinga, in the southern municipality of El Pinar.In the first week of October, the IGN has located 890 earthquakes, most of them situated in the sea, southwest of the island.Yellow alertThe situation remains yellow alert, so that the sequence of earthquakes senses falls within the normal range.From the July 17 IGN has registered and located nearly 10,000 earthquakes, with epicenters both north and south of the NW ridge and depths between 10 and 15 km. The number of events felt by the population is 133, with intensities II, III and IV in the scale EMS 98.
quote: Op maandag 10 oktober 2011 12:40 schreef quirina het volgende:http://www.hollandsenieuw(...)-op-el-hierro_33363/Ik weet niet of dit al gepost is maar dit is ook wel een goed blog om bij te houden.
quote: Op maandag 10 oktober 2011 13:22 schreef Frutsel het volgende:@Zenkelly Thx,was persconferentie denk ik rond 1200 uur? Heb Google Translate er ff op gezet[..]
quote:The address PEVOLCA says there is no certainty of an underwater volcanic eruption on the island of El Hierro10/10/2011 ... 14:06 - Ministry of Economy, Finance and SecurityIGN has confirmed early this morning for a small release of fluids and volcanic gases that do not pose such risk to the populationThe National Geographic Institute (IGN), official organ for volcano monitoring has confirmed this morning at the direction of the Civil Protection Plan Volcanic Risk (PEVOLCA), although there is no certainty that it is now producing a volcanic eruption submarine, from early this morning has been a release of fluids and volcanic gases of type on the southern coast of the island IGN scientists have informed the direction of the Plan that all indicators point to have examined the possibility of the onset of an eruptive process as it has changed the type of wave recorded by seismographs in the last hours, which means the beginning of lava emission or abroad. In this sense, it is purely volcanic signals were not observed until now although it would have to confirm this trend with other parameters such as pressure, gas release or deformation of the ground, among others. The Helicopter Emergency and Rescue Group of the Canary Islands (GES) has conducted reconnaissance flights in the morning without looking out of volcanic material to the surface. Although this activity does not pose a risk to the population, the Directorate of PEVOLCA recommends that people perform their regular duties normally and remain alert to any unusual activity. At the end of the meeting held this morning in Valverde was determined that this afternoon, starting at 19 hours, the Plan address the latest analysis report scientists conducting IGN.
quote:IGN has confirmed early this morning for a small release of fluids and volcanic gases that do not pose such risk to the population
quote:The volcanologists Avcan qualify the situation as "confusing" and ask the National Geographic Institute to confirm the eruptionThe Association Volcano Islands (Avcan), through its website Facebook, 'Current Volcanic Islands', described on Monday the current situation in El Hierro "confused" by not being able to confirm the actual existence on the surface of a preerupción submarine on the coast near El Hierro despite the visual and thermal studies carried out by the helicopter area of the Institute of the Canary Islands Volcano (non-tip).For this reason, ask the National Geographic Institute to rule and say "what is really happening." Also, on its website bemoaned the lack of a research vessel in this crisis, because "we could confirm the current situation."Moreover, they indicate that the behavior of the evolution of the depth of seismicity prior to the onset of tremor signal is "less weird", so that they could not say for sure that what is happening right now is a small eruption underwater although "both the president of the Cabildo de El Hierro Frontera and the mayor spoke of a possible volcanic eruption, to be confirmed, but almost certainly".
quote:Aanwijzingen voor vulkaanuitbarsting Canarisch EilandIn de omgeving van het Canarisch Eiland El Hierro is mogelijk een vulkaanuitbarsting begonnen. Het Spaanse persagentschap EFE meldde vandaag onder aanhaling van experten dat volgens de jongste computergegevens op een diepte van 2.000 meter onder de zeebodem ten zuiden van El Hierro een eruptie aan de gang is. Volgens de Canarische radio zijn alle duikclubs op het eiland verwittigd hun activiteiten in het water te staken. Op het kleinste van de Canarische Eilanden zijn sinds juli ongeveer 9.600 zwakke aardschokken geregistreerd. Ze gelden als een voorteken op een vulkaanuitbarsting. De zwaarste aardbeving deed zich zaterdagavond voor met een kracht van 4,3 op de schaal van Richter. Sinds weken heerst er op het eiland de alarmfase geel, waardoor de zowat 10.000 bewoners op een mogelijke evacuatie moeten voorbereid zijn. (dpa/dea)
quote: Op maandag 10 oktober 2011 17:46 schreef Tokamak het volgende:Intussen lijkt de Tremor steeds krachtiger te worden:http://www.avcan.org/inde(...)ha=10-10-2011&tipo=1
quote: Op maandag 10 oktober 2011 19:02 schreef Takkembah het volgende:DumdumdumBen zeer benieuwd naar het resultaat...
quote:The submarine volcanic eruption of El Hierro magma and gases released into the oceanScientists detect the phenomenon to three miles south of the island and 900 meters deep .- The population has not been affected but the marine faunaForty years after the Teneguía, La Palma, Canary Islands relives a volcanic eruption. Yesterday at 6.20 (GMT), seismographs to the National Geographic Institute (IGN) has deployed around the island of El Hierro began to show an anomalous signal. Since the July 19 seismic crisis began, the curves marked as small jumps for each of the more than 9977 earthquakes. After a day of uncertainty, rumors and denials, Carmen Lopez, head of the volcanology of IGN, just after 22.30 confirmed that there had been a submarine eruption and said he was dating magmatic material. According to Lopez, the seismicity suggests that occurred three miles south of the island and 900 meters deep. Experts do not rule out that another eruption could occur closer to the coast but consider the low probability.The scientists listed various circumstances that test the eruption: detection by the seismographs of the "volcanic tremor", the slowdown of earthquakes, the decrease in magma pressure, thereby reducing the swelling of the island, and the issuance of gases, which has affected marine life, according to pictures broadcast but not discussed by the authorities. They can see dead fish floating in the water. There is no visible evidence, as the huge column of water prevents gas to surface water to the surface. On this island in 1793 there was a seismic crisis similar to that experienced in recent months, but no record that ended in an eruption.The president of the Cabildo Insular de El Hierro, Alpidio Armas, present at the meeting of politicians, scientists and technicians who made the announcement, said that this is a joy because just with an uncertainty that has lasted months. Armas also said that in the absence of an opinion of the technicians is expected to reopen today The Roquille tunnel, which links the capital, Valverde, airport and port of the stake with the municipality of La Frontera, a closure that according to some businessmen were financially strangling the island. This technical report will also decide whether the two dozen displaced families can return to their homes. The alert level on the island will continue for the time in yellow.
quote:Dead Fish, eruption vent at 600m depthUpdate 11/10 – 09:24 UTC : Ay 9 PM UTC yesterday, authorities have finally confirmed that an eruption took place on the ocean floor 5 km from Restinga, the southernmost location on El Hierro. IGN (Spanish seismological agency) has set the eruption depth at 600 meters. The alert level remains at yellow and authorities are asking the population to remain calm. The confirmation came after that scientists from IGN and CSIC (Consejo Superior de Investigaciones Científicas) have been circling the presumable spot of the eruption with helicopters. An important number of dead fish where the convincing sign that an eruption took place. Until then it was presumed that an eruption took place, but only based on indirect instrument readings (harmonic tremors, decrease of deformation, etc.).Carmen Lopez from IGN, said to the press that the next 24 hours will indicate whether the eruption vent widens in if it does, in which direction (towards the island or towards the south).
quote: Op dinsdag 11 oktober 2011 11:54 schreef Californian het volgende:Volgende week zit ik op Gran Canaria. Is daar ook wat te voelen?
quote:At 04:18 UTC on 10 October, 2011 a eruption did start somewhere close to the El Hierro volcano Island (but inside El Hierro volcano system). So far nothing has been seen to this eruption, so location is uncertain at the moment. At the moment this eruption has only been confirmed by harmonic tremors seen on seismometers on El Hierro island.From what I can tell, based on the harmonic tremor plots. It seems that the eruption has been growing in size since it started well over 12 hours ago. This suggests that the eruption is growing in size. That also brings up the issue that new fissures might open, both into deeper ocean and on shallower depth and even on land without any warning at all.
quote: Op dinsdag 11 oktober 2011 12:28 schreef ZUID-OOST het volgende:http://www.avcan.org/inde(...)ha=10-10-2011&tipo=1http://www.avcan.org/inde(...)ha=11-10-2011&tipo=1Het lijkt steeds heftiger te worden.
quote: Op dinsdag 11 oktober 2011 12:31 schreef Frutsel het volgende:Hmm..wist ik niet, als ik uitlog zie ik ze ook gewoon en via me telefoon ook meer mensen met dat probleem dan?
quote: Op dinsdag 11 oktober 2011 12:39 schreef Five_Horizons het volgende:[..]Ik zie je plaatjes ook niet, idd...
quote: Op dinsdag 11 oktober 2011 12:57 schreef bwt het volgende:URL van plaatje in apart venster/tab openen en een keer F5
twitter: teideano twitterde op dinsdag 11-10-2011 om 13:40:34 @eruptionsblog some reports of felt tremor by some....ok, really prelimianr and needs confirmation, but if felt, then we have a problem. reageer retweet
quote: Op dinsdag 11 oktober 2011 13:55 schreef Frutsel het volgende:[ afbeelding ]Harmonische signaal lijkt wel "of the chart" te gaan
quote: Op dinsdag 11 oktober 2011 13:55 schreef Frutsel het volgende:[ afbeelding ]Harmonische signaal lijkt wel "of the chart" te gaan twitter: teideano twitterde op dinsdag 11-10-2011 om 13:40:34 @eruptionsblog some reports of felt tremor by some....ok, really prelimianr and needs confirmation, but if felt, then we have a problem. reageer retweet Deze gast zit er aardig bovenop, al vraag ik me af wat dan "het probleem" zou zijn waarna hij verwijst
SPOILEROm spoilers te kunnen lezen moet je zijn ingelogd. Je moet je daarvoor eerst gratis Registreren. Ook kun je spoilers niet lezen als je een ban hebt.La Palma:SPOILEROm spoilers te kunnen lezen moet je zijn ingelogd. Je moet je daarvoor eerst gratis Registreren. Ook kun je spoilers niet lezen als je een ban hebt.
God didn't create us, we created God!
SPOILEROm spoilers te kunnen lezen moet je zijn ingelogd. Je moet je daarvoor eerst gratis Registreren. Ook kun je spoilers niet lezen als je een ban hebt.
God didn't create us, we created God!
quote: Op dinsdag 11 oktober 2011 14:31 schreef vosss het volgende:Nogmaals de vraag, waar kijk ik hier naar?
quote: Op dinsdag 11 oktober 2011 11:55 schreef Frutsel het volgende:[..]Een 4.0+ misschien... betwijfel of je de rest kan voelen... El Hierro ligt het verste weg
quote: Op dinsdag 11 oktober 2011 14:13 schreef Keiichi het volgende:[..]Idem. Wie twittert 'm ff terug (Heb geen twitter account )
quote:@eruptionsblog Evacuation under way in El Hierro, evacuation under way in El Hierro. Magma migration should be inland.
quote: Op dinsdag 11 oktober 2011 15:33 schreef Keiichi het volgende:[..]
quote:red light is activated
twitter: canariesnews twitterde op dinsdag 11-10-2011 om 16:01:17 New earthquake felt in the La Restinga area of El Hierro as residents are evacuated to sports venue 'as a precaution'. http://t.co/9Ph2lPoL reageer retweet
twitter: canariesnews twitterde op dinsdag 11-10-2011 om 16:39:42 Canarian Government raises current alarm on El Hierro from 'yellow' to 'red' & fears new eruption closer to the coast http://t.co/9Ph2lPoL reageer retweet
quote: Op dinsdag 11 oktober 2011 17:33 schreef Keiichi het volgende:Ik heb het ook maar even naar de FP gesubmitted. Vind het nu wel belangrijk genoeg ervoor
quote: Op dinsdag 11 oktober 2011 18:15 schreef Frutsel het volgende:krassuh krassuh KRASSUH!!!!
quote: Op dinsdag 11 oktober 2011 18:21 schreef pfaf het volgende:Spannend zeg. In negatieve zin. Vreemd dat er in de media niets over gerept wordt. Of mis ik dat?
quote: Op dinsdag 11 oktober 2011 18:25 schreef Jumparound het volgende:[..]het is niet spannend of boeiend :-) Ook heeft de vulkaan geen vermoord zusje of hoge schulden...
quote: Op dinsdag 11 oktober 2011 18:04 schreef Frutsel het volgende:[..]Goeie zaak Ik heb het al tig keer geprobeerd. Al sinds het rommelt probeerde ik het, Maar ze wachten denk ik op een simpel bericht van Novum... copy/paste, hoppa... Ben d'r wel klaar mee. De scheet van Ali B is immers belangrijker.
quote:El Hierro earthquakes and eruption – Updates11/10/2011 18:49 The president of the Government is currently meeting with experts and ministers in La Moncloa to discuss the El Hierro situation11/10/2011 18:10 – As a precaution, all maritime transport has been prohibited in the danger zone around the epicentre of the eruption off the south coast of El Hierro.11/10/2011 18:02 – The military arrive at the sports venue where the residents of La Restinga have been evacuated to. The total population of La Restinga has now been evacuated.
quote: Op dinsdag 11 oktober 2011 20:46 schreef Keiichi het volgende:Nu moet het toch wel op FP komen?
quote: Op dinsdag 11 oktober 2011 21:07 schreef Frutsel het volgende:[..]Eerlijk gezegd zal het me inmiddels een rotzorg zijn wat ze daar doen op hun eiland
quote: Op dinsdag 11 oktober 2011 21:19 schreef blids het volgende:Update 11/10 – 17:17 UTC : People in La Restinga have been evacuated to Valverde with buses and private vehicles. They are asked to stay with family if possible or can spend the night in a student home or in tents in Valverde. La Restinga people who were not at home when the Red Alert was called were denied to enter their homes. This happened also to people living in the higher parts of La Restinga! Police threatened people protesting against the fact they could not get belongings from their houses with high fines. Only the press is admitted to La Restinga!
quote: Op dinsdag 11 oktober 2011 22:15 schreef spijkerbroek het volgende:Damn.. ben net gisteren terug gekomen van Gran Canaria.. ik mis het leuke/interessante!
quote: Op dinsdag 11 oktober 2011 22:48 schreef TARAraboemdijee het volgende:No airports? En wat is dat dan even ten oosten van Valverde, aan de kust?
quote: Op dinsdag 11 oktober 2011 23:11 schreef Keiichi het volgende:[..]http://bit.ly/pKPNZrTja, ik weet het niet. Ruimtebasis?
quote: Op dinsdag 11 oktober 2011 23:20 schreef TARAraboemdijee het volgende:[..]http://en.wikipedia.org/wiki/El_Hierro_Airporthttp://www.aena-aeropuert(...)-Hierro/en/Home.htmlGewoon een normaal vliegveld met alleen vluchten naar Las Palmas
quote: Op dinsdag 11 oktober 2011 18:28 schreef Frutsel het volgende:[..]Inderdaahetd... hoog tijd om mijn energie in dit forum maar elders in te steken
quote: Op woensdag 12 oktober 2011 07:48 schreef Keiichi het volgende: Ik was trouwens aan het kijken op de FP of er uberhaupt artikelen tussenstaan die niet van Novum afkomen (Of door Djeez gepost zijn, dat is alleen onzin)
quote: Op woensdag 12 oktober 2011 08:19 schreef Jumparound het volgende:[..]kunnen we djeez niet het vulkaannieuws laten verslaan? vanuit de krater?
quote: Op woensdag 12 oktober 2011 08:22 schreef Keiichi het volgende:[..]Ik leg 50 euro in voor een ticket voor hem
quote: Op woensdag 12 oktober 2011 00:26 schreef Jumparound het volgende:[..]het was geen sneer naar jou of fok hoor, maar naar de msm in het algemeen. Ik vind dit een super topic om te volgen!
quote: Op woensdag 12 oktober 2011 02:21 schreef thesiren.nl het volgende:Ik kan niet zonder mijn dagelijkse frutsel update. Vaak zit ik in onstuimig nou gebeurd er nog wat, als ik dan je post zie bij laatste post dan weet ik, Hé nieuwe ontwikkelingen.
quote: Op woensdag 12 oktober 2011 07:38 schreef Keiichi het volgende:Vulkanische activiteit op Canarisch eiland Maar mijn submit staat nog in wachtrij Bron: Novum/AP
quote:Hundreds evacuated of Restinga (Google Translate)Already there has been completed the evacuation of 547 inhabitants of The RestingaOnly half a hundred of persons needs an emergency housingIt is believed that the eruption will be more superficial and with ' major explosivity 'The people(village) is the populated point nearest to the submarine eruption of yesterdayMaxim is alert in the south of The Iron. The inhabitants of The Restinga have been evacuated to Valverde and other points of the island more removed from the coast without any incident, after having be Raised up to red level the semaphore of volcanic alert In this locality for the possibility that there takes place(is produced) an eruption more superficial than that of yesterday.The general manager of Security of the Government of Canaries, Juan Manuel Santana, has made clear that this measure takes with Preventive character, Before the seismic signs that indicate that it is probable that a new eruption takes place(is produced) In waters nearer to the coast and less deep That on the one that was registered yesterday, Monday." An eruption in more shallow waters might produce major risks, because it(he,she) would have major explosivity ", Santana has indicated. The rest of the island they are in yellow alert.In a press conference offered in Valverde, the capital of the island, Santana has preferred not speaking about "evacuation", but of " Preventive movement ", Because the situation can change with the course(year) of the hours and still(yet) there is no certainty from which the neighbors of The Restinga have to happen(pass) the night out of his(her,your) houses.
quote: Op woensdag 12 oktober 2011 09:19 schreef bwt het volgende:Er schijnt vanmorgen nog een quake van 1.4 te zijn geweest om 5:15 iets ten oosten van Tenerife.Gezien het plaatje op de frontpage van http://www.avcan.org/Die rode stippen kun je aanklikken.
quote:El Hierro tsunami chanceThe Canary Islands Directorate for Civil Protection and Emergency Response yesterday raised the state of alert for seismic and volcanic activity on the Island of El Hierro to red. The CEO of the agency explained that the increased state of alert only applied to the municipality of La Restinga and the rest of the island remains of yellow alert.La Restinga (547 inhabitants) is a Town on the southernmost coast of the island, and is closest to the underwater eruption which occurred yesterday, 5 kilometers from the coast and at an estimated depth of 1000mts.The CEO also stressed that this was purely a precautionary measure and that there was no immediate threat of danger, however there is a strong likelihood of a further eruption over the next few days.Experts from the National Geological Survey and the Higher Council for Scientific Research (CSIC) moved to the island have not ruled out the possibility that any such eruption, together with increased levels of magma rising to the surface could result in a new Volcano being created on the island.The volcanic activity has attracted much interest from around the world - especially in the USA. It has long been speculated that any volcanic eruption of the Caldera de Taburiente Volcano on the neighbouring island of La Palma may cause a Tsunami of up to 300mts that would cross the Atlantic in a matter of hours. Geologists believe that this is exactly what happened when the El Hierro Volcano broke apart and fell into the Ocean thousands of years ago, creating the 'Val del Golfo' crescents shaped bay, and creating a Tsunami that was largely responsible for the creation of the Florida Everglades.Chatter on the various social networks and forums critcises the United States Geological Survey (USGS) for their lack of communication surrounding the situation in the Canaries. Sources claim that this is so not to panic the public unnecessarily.
quote: Op woensdag 12 oktober 2011 18:31 schreef Keiichi het volgende:De tremors zijn opeens afgezwakt
quote:13/10/2011 @ 09:01 – A new earthquake has been detected, this time to the north-east of the island. Until now, all the earthquakes have been located to the south coast. It took place at 05:10:36 (local time) and registered 1.7 on the Richter scale.
quote:El Hierro update 2The eruption in El Hierro volcano continues today, as it did yesterday. But the strength of the eruption appears to have dropped today from what it was yesterday. But this does not mean that the eruption is over. It just means that the current fissure that is erupting is about to close up, mostly due to the material that it has been ejecting into the ocean floor. That means a new fissure or vents is about to open up somewhere. When and where is impossible to know. But this is the nature of volcanoes that erupt in this manner, but El Hierro is a shield volcano [second link here]. Good examples are Krafla volcano and Vestmannaeyjar Island volcano. Both of those volcanoes are in Iceland.Today around 14:20 UTC there was a sharp tremor drop in El Hierro. This means that the magma flow dropped in the current eruption fissure. This also means that if the pressure is not enough that fissure is going to stop erupting. Because of this has happened a new fissure or a vent should be expect at any time as I have told before. When and where that might happen is impossible to know, as that outcome depends on where the magma finds its pathways inside the volcano. There might not be any earthquakes before this happens, as the rock is unlikey to be hard enough to make them. Some small earthquakes might happen if the rock layer is hard enough. Today few deep earthquakes have been recorded. This means that new magma is getting into El Hierro volcano from the mantle (where no earthquakes happen). This also means that this eruption might take place for some time now. But it is impossible to know for how long, as there might be a lot of magma flowing up from the mantle it self and up to El Hierro volcano.Many people have been wondering why this eruption has not been seen. The fact is that depth drops quiet fast around El Hierro Island. Around 4 km out the depth is close to 1.5 to 2 km, it is only close to the island that the depth starts to get shallower. At the moment is is hard to say what happens next in this eruption on El Hierro. But more vents should be expect to open up then have already have.
quote: Op donderdag 13 oktober 2011 16:58 schreef stan12 het volgende:Bij deze ook![ afbeelding ]
quote: Op donderdag 13 oktober 2011 23:50 schreef stan12 het volgende:Rustiger aan het worden?http://www.02.ign.es/ign/(...)es=10&Dia=13&tipo=1#
quote: Op vrijdag 14 oktober 2011 10:37 schreef Tokamak het volgende:En hij zit dicht (voor nu).http://www.02.ign.es/ign/(...)Mes=10&Dia=14&tipo=1Edit: Toch niet, de transponder hapertEdit 2: Wat me wel opvalt is een zeer laagfrequente trilling, meetbaar bij andere eilanden:Fuerteventura:[ afbeelding ]Wat betekent dit?
quote:Next Eruption on El Hierro 'Hours Away'Scientists and observers on the Canary Island of El Hierro are expecting further seismic activity and volcanic eruption over the next few hours, according to reports by experts.After the two undewater volcanic eruptions earlier this week, the number of earthquakes that have recorded on the Island has been reduced significantly. But the concern continues because the data that predicts the occurrence of volcanic activity is not complete and likely to produce a new volcanic eruption. According to the Centro Superior de Investigaciones Científicas (CSIC) the next eruption could occur on land. The question now is where the next activity will be and whenProfessor Ramon Ortiz from the Center for Scientific Research (CSIC) commented yesterday that the only thing that can be said about the situation is that it will result in one of three things: the fissure which the magma will escape from will move south, to deeperwaters; that fissures will open further inland and twoards the coast of La Restinga; that new fissures could open up on the Island itself.The count of earthquakes since the recent swarm began in July has now surpassed 10,000, and both the Canary Islands Volcano Institute and the National Geographic Institute (IGN) agree that the activity has not ended.
quote:Scientists at the IGN-CSIC moved to the direction of PEVOLCA that "the stain, light green with tan areas, could be associated with emission fumaroliana depth greater than 150 meters."
quote: Op vrijdag 14 oktober 2011 18:49 schreef bwt het volgende:Hmmm.Er valt mij langzaam iets op.[ link | afbeelding ]Ik heb het idee dat de aardbevingen meer en meer naar het noorden trekken.meer en meer in de richting van La Palma. Ook al is dat nog een heel eind weg.[/conspiracytheory]
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quote: Op vrijdag 14 oktober 2011 19:28 schreef quirina het volgende:En de Pico del Teide dan?Het is alweer 102 jaar geleden dat deze uitbarste.
quote:Canarische vulkaan staat op uitbarsten Laatste update: 15 oktober 2011 17:46 infoBekijk op de kaart.MADRID - De Spaanse autoriteiten autoriteiten hebben schepen en vliegtuigen zaterdag opgedragen uit de buurt te blijven van La Restinga op het Canarische eiland El Hierro. Toegenomen seismische activiteit wijst er op dat een onder water gelegen vulkaan op uitbarsten staat.El Hierro is het meest zuidwestelijke van de Canarische eilanden. De ongeveer zeshonderd inwoners van het havenstadje La Restinga zijn afgelopen week geëvacueerd.De regionale regering van de Canarische eilanden zegt dat in de lucht boven de zee bij La Restinga vulkanische deeltjes zijn aangetroffen.Een onderzoeksschip dat monsters verzamelde is teruggeroepen. Ook journalisten die zich in het gebied hebben verzameld, is verteld dat ze moeten vertrekken, meldt de televisiezender La Sexta
quote: Op zaterdag 15 oktober 2011 11:59 schreef stan12 het volgende:[ afbeelding ]Verder weinig nieuws...
quote:15/10/2011 @ 18:09 A new eruption has been detected on El Hierro at just 2.4 km from the coast of La Restinga and 150 meters deep, according to data provided in a press conference by Juan Manuel Santana, Director General of Security. He confirmed that there is bubbling in the sea surface and pyroclastic material floating as a result of magma flowing in shallow waters. See the latest video under Featured Video to the right or click on the link below.
quote: Op zaterdag 15 oktober 2011 18:28 schreef stan12 het volgende:Material piroclÃ¡stico en superficie tras la erupciÃ³n de El Hierro. DÃa 15-10-2011
quote:wat is dat? drijvend lava?ah , verder lezen Pyroplastisch materiaal(wat t ook mag wezen)
quote: Op zaterdag 15 oktober 2011 21:09 schreef Resistor het volgende:Canarische vulkaan staat op uitbarstenEn niet eens een linkje hierheen Gelijk maar even een opmerking over gemaakt. Het meest interessante forum van Fok! negeren, hoe durven ze
quote:16/10/2011 @ 08:04 – Scientists and researchers have confirmed that the eruption is currently located close to the coast of La Restinga at a depth of less that 150m and the eruption is visible from land.16/10/2011 @ 13:25 – The sea surface effects of the eruption now cover the an area the same size as the island of El Hierro. A new island may emerge.
quote:La Restinga returns home to the volcano glancingThe Canary Islands government announces the return to their homes of people evicted from La Restinga and the Gulf and the reopening of the tunnels Roquille,''under extreme surveillance if they return to be evacuated.''El Pinar today applauded the president of the Canary Islands, Paulino Rivero, when it announced it wanted to hear a whole people, anxious for days. Gradually, the island of El Hierro seems back to normal, though under the watchful eye of the volcano that grows beneath the waters of La Restinga. Recent days have been very busy, where nervousness was evident in every face. Yesterday, even the rumor of the evacuation of El Pinar. Nothing is further from the truth.Today, everything has changed, at least for now. Thus, President of the Canary Islands, Paulino Rivero, has announced that the Directorate of Civil Protection Specific Plan and Emergency Response for Volcanic Risk (Pevolca) will in the next 24 hours evicted the residents of La Restinga and The Gulf re- their homes. It also reopens tunnels Roquille to certain restrictions. Also, there will be extreme vigilance in La Restinga, if necessary by re-evacuation.In this sense, the president explained that there would canary enough time to evacuate the basis of information that will provide the hydrophones to be placed in the port of La Restinga and the signs of the evolution of the volcanic process. This equipment will allow the position to know which is the central issue, and the direction of the crack, and could detect if it were to produce the appearance of a new source of emission.This decision is based on reducing the level of seismicity that scientists have detected and parameters observed in the evolution of the eruptive process. In this sense, it was determined that there is no danger to the public on the current situation and that this could be extended in time from days to months.However, the school activity will remain in El Pinar, will not be allowed to return home for bedridden people and to remain permanently transport in La Restinga.Regarding navigation, Rivero reiterated that maintaining the exclusion zone but allow fishermen to move their boats to the port of La stake for them to continue fishing.R8ivero Sunday again insisted on the "exemplary behavior" of the population of El Hierro and especially the residents of La Restinga, and confirmed that it would take a package of measures aimed at individuals, freelancers and small businesses have been affected the consequences of this phenomenon.
quote:17/10/2011 @ 07:15 – Scientists and researchers studying the volcanic activity have said that if the eruption follows its course, there may be a new small island emerging within 2 weeks.
quote:17/10/2011 @ 09:08 – Residents of La Restinga have been allowed to return to their homes after spending days relocated at a sports venue nearby, despite the eruption moving closer to the coast of the island. The authorities claim that they will have enough time to re-evacuate the population should there be a need to do so.
quote:El Hierro supplied with extra troops and resourcesThe Regional Government of the Canary Islands has mobilised a unit consisting of 16 troops (thirteen policemen, two officers and a deputy) and four vehicles (two trucks, one jeep and a patrol car) to facilitate the return of the residents of La Restinga, as well as being on hand to assist in any further evacuation if required.Meanwhile, the telecommunications infrastructure on El Hierro has been improved in the event of further volcanic activity on or close to the island resulting in further evacuations being required.Three stations have been implemented at Taibique, La Peña and San Andres in order to monitor the situation, with a further mobile unit being available. It has also installed a radio link from Afoba to La Gomera and a VSAT satellite link from Valverde.Furthermore, Telefonica have responded to the request of the regional government and installed an Advanced Command Post at San Andres, along with 6 extra landlines, with an extra 2 lines for the sports center of Valverde, which is being prepared as a potential evacuation post, with a further extra line being provided for the Island's Hospital.
quote:El Hierro Volcanolgists report new island may be formedFurther to this weekends continued Volcanic eruptions off the southth-weatern coast of the island of El Hierro, and meetings held on Sunday afternoon by the PEVOLCA committee, scientists have ressumed their analysis of the activity.The Oceanographic research ship Profesor Ignacio Lozano has left port early this morning to monitor the eruption area, in particular investigating the numerous fish killed in vacinity of the 'stain' and collecting gas and pummice samples brought to the surface.Whilst many residents of the evacuated village of la restinga have slowly begun to return to their properties, many have chosen to remain away from home due to fears of further volcanic activity. The authorities have not ruled out that a further evacuation may be necessary at just 7 or 8 hours notice.Volcanologists from the CSIC (Consejo Superior de Investigaciones Científicas) have also concluded that if the activity continues for a further 2 weeks then the magma production coul result in a new island being formed just 2km off the coast of la Restinga. form a new small island 2 km out of the present El Hierro coast if the eruption continues like it does today.Research tems have ruled out the possibility that any such 'island' would be connected to El Hierro.
quote:17/10/2011 @ 10:58 An earthquake has been detected underwater between the island of Tenerife and Gran Canaria. According to the IGN, it happened this morning at 06:00 and measured 1.7 on the Richter scale.
quote:The Canary Islands government reinforces # telecommunications infrastructure for emergency response in # ElHierroThe General of the Police Corps Canaria involved in the safety device in El Hierro PEVOLCA16/10/2011 ... 20:08 - Ministry of Economy, Finance and SecurityStrengthen monitoring of La Restinga and participate in the process of returning home to her peopleThe General Body of the police involved, starting tomorrow, the security device established within the Civil Protection Plan for Volcanic Risk Emergency (PEVOLCA) on the island of El Hierro. In particular, the Government of the Canary Islands to the island moves a device consisting of 16 troops (thirteen policemen, two officers and a deputy) and four vehicles (two trucks, one jeep and a patrol car) will participate in the process of return to evacuated the neighbors in La Restinga, as well as continuous monitoring of the area and in the process of a future evacuation, if it was needed. Telecommunications Meanwhile, the Directorate General of Telecommunications and Information Technologies, under the Ministry of Presidency, Justice and Equality, made during the last days, a substantial strengthening in telecommunications infrastructure El Hierro installing additional generating the necessary redundancy If the occurrence of the failure of some existing ones. In particular, we have placed three mobile stations Taibique TETRA Network, La Peña and San Andres and there is another alert transportable station if necessary use. It has also installed a radio Afoba to La Gomera and a VSAT satellite link from Valverde.Meanwhile, Telefonica, at the request of the Government of Canary, installed on the Advanced Command Post (WFP) regional government, located in the San Andres, six basic lines, two in the sports center of Valverde, where they are evacuees located, and one in the Hospital of El Hierro.
quote:At least 2 more vents opened upAt least two more vents have opened up on the from what I can gather on the pictures and the reports from Canary Islands. So far all the new vents are under the ocean and at depth of no less then 150 meters. So seeing them directly is quite hard for the moment. There are continues deep earthquakes under El Hierro volcano, but that suggests that new magma is flowing into El Hierro volcano.During the weekend floating magma bombs where (or some type of magma, I do not have the exact word for it in English at the moment) floating on the ocean. But this means that at least one of the vents that started erupting in the beginning is getting close to break the surface of the ocean. If the eruption continues in that vent for a little while longer. If it gets above the surface of the ocean, it is going to form a island and a lava eruption is going to start once the ocean cannot get any more into the crater.There is a risk of new fissures in El Hierro opening up without warning. From what I am estimating, the area that this can happen has expanded about ~5 km or so from my original estimate that I made in few blog posts ago. The risk of new fissure opening up on land is going to remain high while this eruption is taking place. But this might well be a period of eruption activity for El Hierro. It is impossible to know for how long it is going to last, it could be weeks or it could be months and up to years of activity.
quote:There is not enough magma to form a new island El HierroMADRID, 17 Oct. (EUROPE PRESS) -The scientific coordinator of the Institute of the Canary Islands Volcano, Nemesio Perez, stated that in order to form another island next to El Hierro should have an eruption of magma "incredible", which, as explained, "so far is not happening ".In an interview on National Radio, as reported by Europa Press, Perez emphasized that the eruptions that occur or have occurred in the past in El Hierro have been low index fossils. It has also indicated that "when magma instead of going by land out near the coast to 50 to 20 feet deep, will increase your explosive" because the interaction with water causes it to break and be more explosive .However, he pointed out that the submarine fissure eruption is about 2.5 kilometers south of La Restinga and the emission occurs at about 150 meters deep. Therefore, he noted that "the most obvious manifestations of this rash are those rocks or floating material as a result of gas content that exists in the lava."On the other hand, has indicated that "the hydrophones that have been possible to detect which in turn allow the eviction" and noted that "volcano monitoring is based on monitoring of seismic activity, deformation and gas" and with that information "could detect any change in volcanic activity."Finally, he stressed that "the recovery of the marine system could be quite rapid, especially the smaller species."
quote: Op maandag 17 oktober 2011 18:21 schreef Frutsel het volgende:17/10/2011 @ 17:16 : Another earthquake has been detected to the north coast of Tenerife, off the coast of Buenavista and Garachico
quote: Op maandag 17 oktober 2011 09:04 schreef Keiichi het volgende:[..]Laten we nieuwe namen verzinnen voor het eiland
quote:17/10/2011 @ 22:25 – The strong sulphur smell and the change in the direction of the tide has delayed the residents of La Restinga returning to their homes. The El Roquillo tunnel opening will go ahead as planned.
quote:18/10/2011 @ 08:35 – There have been 3 earthquakes registered this morning (Tuesday 18th October 2011) around the island of El Hierro, all measuring over 2 degrees on the Richter scale.0/2011 @ 08:50 – The continuous tremors detected on the island of El Hierro seem to have decreased in intensity, this is the graph from this morning so far.
quote:El Hierro Volcano 'entering a new phase'Volcanologists on El Hierro beleive that the Volcano moved into a new phase on Momnday afternoon following signs of a number of volcanic tremors, which could indicate that the processis moving faster than originally predicted.The Sulfur stain coming from the eruption in the Atlantic to the south of the island of sulfur is almost bigger than the island itself, and yesterday saw an increased number of bubbles rising to the surface.Scientists predict that if things continue at the same rate huge columns of smoke may be produced, reaching some 500 feet, after high pressure steam and gas is released from the seabed, followed by explosions caused by magma at 1,200 degrees coming onto contact with seawater on the ocean floor.The Professor Lozano research vessel of the Canary Institute of Marine Sciences (ICCM) returned to port on El Hierro late yesterday to review data, but it became clear that the lava still contains a high concentration of gases after lava rocks collected were found to break easily due to a large number of bubbles in them.The decision made following Sunday's PEVOLCA meeting, to allow residents of la restinga to return to their homes after evacuation last week, has now been postponed until later today.Scientists are continuing to collect samples of pyroclastic formations, fish, and water characteristics such as temperature, salinity, pH, chlorophyll, turbidity, dissolved oxygen, gases and nutrients to monitor changes in the eruption process.The exact nature of what is happening underneath the island remains unknown for the time being, which has lead to speculation that a new formation, or 'island' may grow from the magma production 2km offshore in the Atlantic.Towards the end of the short video clip you can see the bubbles being produced rising to the surface.El Hierro -The residents can return home tuesday but they expect a new volcanic phase 10-17-2011-
quote:18/10/2011 @ 11:10 The El Roquillo tunnel has been re-opened today, but only for heavy loads and emergency services.18/10/2011 @ 12:04 Units are being moved into the town of La Restinga to monitor the quality of the air in the town.
quote:18/10/2011 @ 13:21 The Canarian Government is offering to pay rent for the people and families that do not want to return to La Restinga. It has been reported that people have been left with no money, no home and sleeping in their cars.
quote:bevingen ook meer en meer ten noorden van Frontera
quote:De vulkaan lijkt "Relaxed"This image was produced this morning (Tuesday) and then ceased activity. Gelmert FinolSergio Gutierrez, El Pinar (18.10.2011. 13:20 pm)The area of eruption has dawned calmer. At least, that the signs seem to indicate less intense than days ago that at this time can be seen in the area of Los Carilo, about three miles from La Restinga and the epicenter of information these days.According to sources consulted by AVCAN DAILY HIERRO, the decline of the tremor signal may be due to several reasons. On the one hand, the activity has ceased magna closing its output abroad, which could raise the pressure and therefore increase, again, the seismicity on the island.It may also simply mean that the eruption has ceased, the magma is cooled in the crack, like a dam and leaving only residual seismic activity would decline.Finally, the third possible scenario could be that the system stops cavitate or flutter, ie the area or the point where depressurization occurs is more than just size, so do not pass the magma forced by that point. AVCAN view of one form or another possibility, "would be great on curved or straight devil taking as the starting energies the stopping point of tremor".However, it will take to the explanation of the scientists who are working on the island of El Hierro.
quote: Op dinsdag 18 oktober 2011 15:37 schreef Frutsel het volgende:Hierrovolcan 17102011
quote:The Prevolca does not allow residents of La Restinga go home The residents of the town of El Hierro La Restinga can not return home permanently, as announced by the Director General of Security and Emergency of the Canary Islands, Juan Manuel Santana and the president of the Cabildo de El Hierro , Alpidio Armas , after the last meeting held by the scientific committee Prevolca this afternoon. Santana explained that, although the volcano eruptive activity has declined in recent hours and that the air quality in La Restinga no problems of toxicity recorded recently boosted currents by emission spot submarine to the coast by that "we must be attentive to the wind" and an increased number of tests. Also, forward a reinforced security and controlled access area, which will increase the time that those affected can go to their homes. Weapons acknowledged the situation "embarrassing" that plagues the economy resulting from the eruption of El Hierro underwater, in reference to the fisheries sector, among others. The director of the National Geographic Institute (IGN), Maria Jose Blanco attended the event, said that so far there has been no columns of steam and that the decreased activity could mean that the mouth of the volcano "could be closing." However, he noted that it is a hypothesis, since it is not ruled out a rash on the mainland. White said that depends on the political representatives, and not IGN, allowing residents access to La Restinga.
quote:Scientists needed over 48 hours whether the disappearance of the bubbles is symptomatic of the end of the eruptive process or notPresident of the Canary Islands, Paulino Rivero, advanced in an interview in 'breakfasts TVE that scientists who study the phenomena of El Hierro euruptivo hope to offer a response to recent symptoms "in 48 hours." Since yesterday there is no bubbling in the sea and the intensity of the tremor has decreased.These two phenomena could be symptoms of a "disappearance of the process or the emergence of a new point of eruption in another area," which could be on the ground.Rivero said the inability of residents of La Restinga can not return permanently to their homes, due to security measures at the inability to determine the causes of the current phenomenon and its consequences. "It's logical uncertainty felt by the neighbors," he said, but "the priority is the safety of citizens."The president argued that the Pevolca canary "is working perfectly" and that all measures being taken by authorities are based on the recommendations of scientists. He moved that "today you may decide to relax some," as the eviction of the residents of La Restinga or passage in the tunnel restringuido The Roquille.
quote:19/10/2011 @ 08:00 It all seems to have gone quieter on the El Hierro eruption, the bubbling seen previously has stopped and the registered continuous tremors have decreased in intensity. Residents of the coastal town of La Restinga are only allowed to return to their homes during the day, and for a limited period of time. The El Roquillo tunnel remains open only for commercial and emergency vehicles.