Vulkaanuitbarsting bij Canarische Eilanden #4

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Recordaantal aardbevingen op Canarisch eiland

Nog 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..

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El Hierro Earthquake Swarm Enters Third Week
The 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.

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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 Past

El 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.

Nuevas imágenes de la mancha de emisiones volcánicas en la costa de El Hierro

Material piroclástico en superficie tras la erupción de El Hierro. Día 15-10-2011

Imágenes de la erupción el día 17-10-2011 donde se aprecia el foco principal de la misma

Underwater volcano errupting of coast Canary Islands emits toxic gases

Birth of a new vent on November 23

El volcán de La Restinga, El Hierro.

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NOTE AVCAN 427 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - 22 January 2012-12:30 h peninsular - seismic-volcanic activity remains moderate, one in the mountain area east of Tanganasoga, two in the Julan and one in the Llanillos , also with some of seismicity detected but not localized.

Continued volcanic tremor signal in the eruption of the Restinga, and seems to follow cycles d ... and a 12-18h, coinciding with high tides and low tides so that when the tide up and down, having a variation in the water pressure, water enters the tube and becomes very unstable, with loud explosions hydromagmatic, making mincemeat ejecta and more stable at low tide where they exit from lava or pyroclastic balloons floating to the surface smoldering. On day 20 the highest tremor coincided with low tides, the 21 (day before yesterday), and change Yesterday's tremor Igua that coincided with high tides roughly, today has once again changed and coincided with low tide follows high tremor would be for the next low tide at 19:00 h. .. can not not be as simple

The magnitude of the earthquakes located between 1.6 and 0.3. New quakes 6. Profundidada 12, 13, 14, 15, 15 and 16km. Before yesterday 5. Yesterday 4. Today van 2. A total of 12,022 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

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The seismicity map of the last two weeks you can see the circular zone of seismicity of the past days with the strongest earthquakes in the peripheral zone. The two quakes today (Rosa) are ranked according to the prolongation of the NE-SW axis of the island in the Cala Tacorón and the Sea of las Calmas, prolongation active these last days as shown in the earthquakes of days before. Yesterday was the seismic shift in the west of Tanganasoga and Sabina, with 2 peaks in the area, 1 on the coast and another in the Gulf escarpment to the west.

Also be seen as 3 concentric arcs that begin in NS Direction to go turning to NNW-SSE to NW-SE, WNW-ESE and end EO curious and whose interpretation could be a dispersion of efforts by a feather mantle provocandos below the bark ... if so, your focus or center points to the border area to the point where deep seismicity has been detected the past 01 days, almost nothing (Enrique).

DAY 23 JAN EARTHQUAKES. - Rosa (2)
DAY 22 JAN EARTHQUAKES. - Blue (4)
EARTHQUAKES OF THE DAY 06 to 21 JAN. - Yellow (34)

New earthquakes detected and located yesterday and today by the IGN in the area of the island of El Hierro and vicinity since the last note AVCAN:
1119745 01/01/2012 12:17:54 27.7456 -17.9893 34 1.8 4 SE FRONTERA.IHI
1122704 22/01/2012 20:21:14 27.7139 -18.0735 12 0.3 4 SW FRONTERA.IHI
1122703 22/0 ...1/2012 20:35:32 27.7400 -18.1023 16 0.3 4 W FRONTERA.IHI
1122706 22/01/2012 21:21:45 27.7477 -18.0716 15 1.0 4 W FRONTERA.IHI
1122729 22/01/2012 22:14:19 27.7112 -18.0713 13 0.8 4 SW FRONTERA.IHI 12022
1120938 11/01/2012 03:07:01 27.7491 -18.0899 29 II 2.4 4 W FRONTERA.IHI
1122739 23/01/2012 05:39:21 27.6886 -18.0303 15 1.1 4 SW EL PINAR.IHI
1122740 23/01/2012 07:19:12 27.6570 -18.0587 14 1.6 4 SW EL PINAR.IHI
1122793 23/01/2012 11:12:17 27.7095 -18.0403 16 1.4 4 W EL PINAR.IHI

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Update 23/01 -11:57 UTC
As we see a more and more active jacuzzi area, we can start thinking of the new phase soon, the Surtseyan phase (when, is depending on the vent activity and can be from hours to weeks if the eruption continues like it goes now).
We want to stress however that based on the just happened Red Sea eruption, the distance from the vent to the coast would be safe enough to not damage La Restinga or any other part of the island. A Surtseyan phase will go normally gradually and with all the scientists aboard, people will have no risk at all.
Additionally IGN or INVOLCAN / ITER have not yet measured high concentrations of the typical eruption gases as yet) It would not surprise us to see it happening soon as the vent depth is reaching the point where the superheated steam pressure from below (magma (1100°C) /water interaction) can become bigger than the water column above it.
We have written it before, but it maybe good the repeat the Wikipedia description of the Surtseyan eruption : A Surtseyan eruption (or hydrovolcanic) is a type of volcanic eruption caused by shallow-water interactions between water and lava, named so after its most famous example, the eruption and formation of the island of Surtsey off the coast of Iceland in 1963. Surtseyan eruptions are the wet equivalent of ground-based Strombolian eruptions, but because of where they are taking place, they are more explosive (ER read : steam and ash columns). This is because as water is heated by lava, it flashes in steam and expands violently, fragmenting the magma it is in contact with into fine-grained ash.
- Joke has just reported (you may have seen it on the webcam) that the Guardia Civil /Involcan helicopter was hanging close to the vent measuring gases and temperatures.

VUELO CIENT�FICO INVOLCAN - GC 230112 - VOLC�N SUBMARINO DEL HIERRO - CENIZAS Y GASES - I

VUELO CIENT�FICO INVOLCAN - GC 230112 - VOLC�N SUBMARINO DEL HIERRO - CENIZAS Y GASES - II

VUELO CIENT�FICO INVOLCAN - GC 230112 - VOLC�N SUBMARINO DEL HIERRO - DESGASIFICACIÓN VOLC�NICA

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Update 23/01 – 23:58 UTC
The video above made by the Involcan / Guardia Civil has been recorded this morning while the jacuzzi was still very strong. It shows 2 different vents separate from each other, a new phenomenon as far as the last couple of days and weeks.

Update 23/01 – 23:55 UTC
- An 8th earthquake happened at 23:05. The earthquake had a magnitude of 1.1 (depth unknown at the moment). Epicenter here
- Harmonic tremor minimal but surviving. Very hard to say what will happen next.

Update 23/01 – 22:55 UTC
- Harmonic tremor came again to life at 20:43 UTC and is still surviving a little bit at the time of writing this update. Just as this morning we see regular strong hydromagmatic bursts.
- 3 more earthquakes later today , making it a total of 7 earthquakes today !
23/01/2012 15:12:28 27.7501 -18.0543 13 1.3 4 W FRONTERA.IHI
23/01/2012 15:44:08 27.7565 -18.0286 5 0.6 4 W FRONTERA.IHI
23/01/2012 20:20:35 27.6701 -18.0068 26 1.4 4 SW EL PINAR.IHI

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DAY 23 JAN EARTHQUAKES. - Pink (6)
DAY 22 JAN EARTHQUAKES. - Blue (4)
EARTHQUAKES OF THE DAY 06 to 21 JAN. - Yellow (34)

Earthquakes Today, three new, noteworthy that near Frontera, rose above the right of 0.6 to 5.1 km and the two alignments NE-SW and NNW-SSE ...

1122739 23/01/2012 05:39:21 27.6886 -18.0303 15 1.1 mbLg SW EL PINAR.IHI - El Hierro
1122740 23/01/2012 07:19:12 27.6570 -18.0587 14.2 1.6 mbLg SW EL PINAR.IHI - El Hierro
1122793 23/01/2012 11:12:17 27.7095 -18.0403 15.5 1.4 mbLg W EL PINAR.IHI - El Hierro
1122839 23/01/2012 12:21:17 27.6650 -18.0512 11.8 1.5 mbLg SW EL PINAR.IHI - El Hierro
1122875 23/01/2012 15:12:28 27.7501 -18.0543 12.7 1.3 mbLg W FRONTERA.IHI - El Hierro
1122878 23/01/2012 15:44:08 27.7565 -18.0286 5.1 0.6 mbLg W FRONTERA.IHI - El Hierro

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NOTE AVCAN 428 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - 24 January 2012-12:00 h peninsular - seismic-volcanic activity remains moderate earthquakes located over having no sign of tremor, with today's summit area Tanganasoga east of, and yesterday in a NS strip through the same area, with some seismicity detected but not localized. Continued volcanic tremor signal in the eruption of the Restinga, alternating tremor peridos with low and quiet with periods where it is very unstable, with loud explosions hydromagmatic and ups and downs, went up yesterday and this morning has stopped and has been in the last hours minimum. Magnitude between 1.5 and 0.3. New earthquakes 10. Profundidada 12 and 13km (5.1km and one and two at 15.5 and 25.8km). The day before yesterday 4. Yesterday 8. Today van 4. A total of 12,032 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique)

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NOTE AVCAN 429 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - 25 January 2012-11:45 h peninsular - seismic-volcanic activity remains moderate earthquakes located over having no sign of tremor, today one in the Cala Tacorón and two more in the mountain area south of Tanganasoga, and yesterday the same area, further east in the interior of the island continues volcanic tremor signal in the eruption of the Restinga is declining but remains alternating peridos with low and quiet tremor with periods where it is more unstable, with loud explosions hydromagmatic and ups and downs, went up yesterday and this morning has rebounded somewhat the down after 5:55 pm. Magnitude between 1.6 and 0.5. New earthquakes 5. Profundidada 12 and 13km. Before yesterday 8. Yesterday 6. Now go 3. A total of 12,037 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).


DAY 25 JAN EARTHQUAKES. - Green (3)
DAY 24 JAN EARTHQUAKES. - Green (6)
DAY 23 JAN EARTHQUAKES. - Pink (8)
DAY 22 JAN EARTHQUAKES. - Blue (4)
EARTHQUAKES OF THE DAY 06 to 21 JAN. - Yellow (34)

The seismicity map of the last two weeks you can see the circular zone of seismicity of the past days with the strongest earthquakes in the peripheral zone. Earthquakes today (red) with an area of Cala Tacorón and two more in the mountain area south of Tanganasoga, and yesterday (green) night the same area, further east in the interior of the island, area east of Tanganasoga peaks, all within the island. The day before yesterday earthquakes (Rosa) NS line and according to the prolongation of the NE-SW axis of the island in the Cala Tacorón and the Sea of Calm, and active in recent days prolongation NNW-SSE as can earthquakes seen in the previous days.

detected and located yesterday and today by the IGN in the area of the island of El Hierro and vicinity since the last note AVCAN:

1123227 24/01/2012 20:29:26 27.6866 -18.0398 13.5 1.6 mbLg SW EL PINAR.IHI
1123251 24/01/2012 23:28:05 27.6799 -18.0390 12.8 1.2 mbLg SW EL PINAR.IHI
1123295 25/01/2012 04:08:11 27.6980 -18.0631 12.0 1.1 mbLg W EL PINAR.IHI

1123296 25/01/2012 04:09:48 27.7104 -18.0627 13.4 0.9 mbLg SW FRONTERA.IHI
1123344 25/01/2012 05:00:40 27.6638 -18.0352 13.2 0.5 mbLg SW EL PINAR.IHI

VUELO CIENT�FICO INVOLCAN - GC 230112 - VOLC�N SUBMARINO DEL HIERRO - MANCHA MARINA - PANCAM I

VUELO CIENT�FICO INVOLCAN - GC 230112 - VOLC�N SUBMARINO DEL HIERRO - MANCHA MARINA - PANCAM II

VUELO CIENT�FICO INVOLCAN - GC 230112 - VOLC�N SUBMARINO DEL HIERRO - CENIZAS Y GASES - PANCAM II

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Update 25/01 – 10:51 UTC
- a bit late today for our first reporting due to an earthquake close to Parma in Northern Italy
- jacuzzi waters strong and a minor harmonic tremor. As we have seen many times before, there seems to be NO direct relation in between HT and the activity at the surface during the normal ongoing submarine eruption. Only the violent phase during the beginning of November was an exception on this.
- have you seen the VERY BIG magma stone in the jacuzzi waters. This block must be meters wide !, almost like a rocK We know the proportion since the blocks we saw a few weeks ago looked minor on the webcam and and where 1.5 meter tall !
- 3 earthquakes so far today. The earthquakes are showing the continuous pressure of the magma against the volcano cone of El Hierro. The magma seeks openings everywhere and is pressing against crevasses, lava tubes etc.

Update 25/01 13:14 UTC
- Ann-Kristin made the remarkable webcam capture : A men/woman walking on the jacuzzi !

2012 01 24 11 27 09

2012-01-25_13-49-40.avi

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NOTE AVCAN 430 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - 26 January 2012-10:45 h peninsular - seismic-volcanic activity remains moderate to high, with more earthquakes located to be any sign of tremor in the Sea of las Calmas, Cala area Tacorón and southeast of the island quite microseismicity also detected but not localized tonight, after the earthquake of 2.8 aparecenal least two long-period events or LP, indicating depressurization of fluids and magma movement and is clearly seen in the figure of the spectrogram.

Continued volcanic tremor signal in the eruption of the Restinga, and even decreases while still alternating periods with low and quiet tremor with periods where it is more unstable, with loud explosions and many ups and downs hydromagmatic yesterday morning and went up to continued until 16:40 h and this morning has rebounded somewhat the down after 5:20 pm.

Magnitude between 2.8 and 1.0. New quakes 7. 2 felt earthquakes with intensity II. Depth between 12 and 13km. Before yesterday 6. Yesterday 8. Today van 2. A total of 12,044 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).


New earthquakes detected and located yesterday and today by the IGN in the area of the island of El Hierro and vicinity since the last note AVCAN:
1123472 25/01/2012 13:00:54 27.6629 -18.0044 12.8 1.6 4 SW EL PINAR.IHI
1123504 25/01/2012 17:01:35 27.6401 -18.0339 13.5 II 2.5 4 SW EL PINAR.IHI
1123505 25/01/2012 17:06:01 27.6280 -18.0333 13.9 1.8 4 SW EL PINAR.IHI 12040

1123513 25/01/2012 19:19:10 27.6908 -18.0345 12.3 1.2 4 SW EL PINAR.IHI
1123512 25/01/2012 20:22:34 27.6722 -18.0295 12.4 II 2.8 4 SW EL PINAR.IHI

1123531 26/01/2012 01:53:50 27.6990 -18.0276 13 1.0 4 W EL PINAR.IHI
1123586 26/01/2012 07:18:45 27.6650 -18.0308 12 1.0 4 SW EL PINAR.IHI

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AVCAN
A deep earthquake of 1.9 at 19:49 at 23km in the Gulf, then we have an LP at 17:49, another 1.0 to 16km sismito in Pinar and then two, curiously have been becoming more shallow, and some but not finally located and tremor resurrects and comes back at about 19:46 that evening we are completita ... I leave the map of the earthquakes that we have today (Enrique).

1123677 26/01/2012 16:49:12 27.7512 -18.0694 23.3 1.9 W FRONTERA.IHI mbLg
1123678 26/01/2012 17:56:05 27.7074 -18.0472 15.6 1 mbLg W THE PINAR.IHI
1123684 26/01/2012 19:02:45 27.6674 -18.0590 14.5 1.5 SW mbLg PINAR.IHI
1123685 26/01/2012 19:19:57 27.7050 -18.0686 14.2 0.6 W THE PINAR.IHI mbLg

DAY 26 JAN EARTHQUAKES. - Dark Blue (6)
EARTHQUAKES OF THE DAY JAN 23 to 25. - Yellow (22)

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NOTE AVCAN 431 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - 27 January 2012-10:00 h peninsular - seismic-volcanic activity continues to moderate, with more earthquakes located microseismicity and having no sign of tremor, located from the coast and border peaks in the area of Cala Tacorón through the Julan and one in the Sea of las Calmas. Also tonight quite microseismicity detected but not localized. Continued volcanic tremor signal in the eruption of the Restinga, and even decreases while still alternating periods with low and quiet tremor with periods where it is more unstable, with loud explosions and many ups and downs hydromagmatic yesterday afternoon by La rose from 19:49 h o'clock and this morning has stopped. Magnitude between 2.0 and 0.4. New earthquakes 12. Depth between 10.5 and 15.6km (and another one at 9.5 and 23.3km). Before yesterday 8. Yesterday 6. Now go 8. A total of 12,056 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).


DAY 27 JAN EARTHQUAKES. - Red (8)
DAY 26 JAN EARTHQUAKES. - Dark Blue (6)
EARTHQUAKES OF THE DAY JAN 23 to 25. - Yellow (22)

Today Earthquakes accumulate in Julan area and two Border and coincides with one of yesterday along the coast. You will see a series of alignments CalaTacorón EO against entering land and other axis NS and NNW-SSE.

1123677 26/01/2012 16:49:12 27.7512 -18.0694 23.3 1.9 mbLg W FRONTERA.IHI

1123678 26/01/2012 17:56:05 27.7074 -18.0472 15.6 1.0 mbLg W EL PINAR.IHI
1123684 26/01/2012 19:02:45 27.6674 -18.0590 14.5 1.5 mbLg SW EL PINAR.IHI
1123685 26/01/2012 19:19:57 27.7050 -18.0686 14.2 0.6 mbLg W EL PINAR.IHI
1123698 27/01/2012 01:02:27 27.6664 -18.0195 11.7 0.9 mbLg SW EL PINAR.IHI
1123723 27/01/2012 02:13:41 27.6889 -18.0475 12.9 0.9 mbLg SW EL PINAR.IHI 12050

1123727 27/01/2012 04:24:53 27.6967 -18.0378 12.8 2.0 mbLg W EL PINAR.IHI
1123729 27/01/2012 06:27:16 27.6936 -18.0435 10.5 0.4 mbLg W EL PINAR.IHI
1123730 27/01/2012 06:27:45 27.7065 -18.0425 11.2 0.4 mbLg W EL PINAR.IHI
1123732 27/01/2012 06:57:15 27.7537 -18.0703 14.6 0.7 mbLg W FRONTERA.IHI
1123733 27/01/2012 07:39:10 27.6662 -18.0715 9.5 0.4 mbLg SW EL PINAR.IHI

1123735 27/01/2012 07:55:53 27.7478 -18.0693 15.5 0.5 mbLg W FRONTERA.IHI

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[bron] ^{19:00 uur}
Today we are going and for the 12 earthquakes, 4 more than the last part .. a sismito to 10.5 under Frontera and the truth is that earthquakes are making the area very well magma conduit through the fault, fissure or dike from the el Golfo area, passing under the Tangansoga (an earthquake at 10.5km ) NNW-SSE direction towards SSE passes the mountain area (an earthquake there at 19km), the Julan and will end in the eruption of the Restinga, which returns to bubbling and activity since the tremor was resumed last two in the afternoon ... and for dessert the ship Salvamar by bubbling area a few minutes ago. (Enrique).

DAY 27 JAN EARTHQUAKES. - Red (12)
DAY 26 JAN EARTHQUAKES. - Dark Blue (6)
EARTHQUAKES OF THE DAY JAN 23 to 25. - Yellow (22)

1123739 27/01/2012 09:18:10 27.6995 -18.0699 11.8 0.9 mbLg W EL PINAR.IHI - El Hierro
1123834 27/01/2012 14:14:06 27.7629 -18.0267 10.5 1.1 mbLg W FRONTERA.IHI - El Hierro
1123836 27/01/2012 15:16:34 27.7155 -18.0528 19 0.9 mbLg SW FRONTERA.IHI - El Hierro
1123843 27/01/2012 16:41:33 27.7326 -18.0573 14.8 0.5 mbLg SW FRONTERA.IHI - El Hierro

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NOTE AVCAN 433 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - 29 January 2012-12:45 h peninsular - seismic-volcanic activity remains moderate, with more earthquakes located microseismicity and having no sign of tremor, located from the coast and Frontera peaks in the area of ​​Cala Tacorón through the Julan and one in the Sea of las Calmas. Today is located further west. Also tonight quite microseismicity detected but not localized. Continued volcanic tremor signal in the eruption of the Restinga, and even decreases while still alternating periods with low and quiet tremor with periods where it is more unstable, with loud explosions and hydromagmatic ups and downs. Keep coming and smoldering pyroclastic floating in the sea at the moment is the most obvious statement that the volcano continues to erupt. Magnitude between 2.4 and 0.6. New earthquakes 18. Depth between 10.2 and 16km (and two to 19 and 22km). The day before yesterday 12. Yesterday 9. Now go 9. A total of 12,078 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

DAY 29 JAN EARTHQUAKES. - Pink (9)
DAY 28 JAN EARTHQUAKES. - Light green (9)
DAY 27 JAN EARTHQUAKES. - Red (12)
DAY 26 JAN EARTHQUAKES. - Dark Blue (6)
EARTHQUAKES OF THE DAY JAN 23 to 25. - Yellow (22)

The earthquakes of today are further west aligned in the NNW-SSE Direction from Sabine to the Sea of las Calmas through the high mountain area. Yesterday was more in the Julan and sea area of the eruption to the area las Calmas. before yesterday accumulate in Julan area and two Border and coincides with one of yesterday along the coast. You will see a series of alignments against Cala Tacorón EO entering land and other axis NS and NNW-SSE.

New earthquakes detected and located yesterday and today by the IGN in the area of the island of El Hierro and vicinity since the last note AVCAN:
1123906 28/01/2012 11:57:37 27.6780 -18.0413 10.2 1.1 mbLg SW EL PINAR.IHI
1123907 28/01/2012 15:00:16 27.7203 -18.0643 12.6 0.6 mbLg SW FRONTERA.IHI
1123908 28/01/2012 16:44:07 27.7182 -18.0368 11.5 1.6 mbLg SW FRONTERA.IHI
1123918 28/01/2012 17:40:54 27.6363 -18.0294 11.1 1.7 mbLg SW EL PINAR.IHI
1123919 28/01/2012 17:55:09 27.6972 -18.0425 14.8 1.2 mbLg W EL PINAR.IHI

1123923 28/01/2012 21:29:42 27.6570 -18.0484 11.0 1.6 mbLg SW EL PINAR.IHI
1123927 28/01/2012 21:30:20 27.7005 -18.0434 12.0 0.7 mbLg W EL PINAR.IHI
1123925 28/01/2012 22:44:36 27.6767 -18.0335 14.2 1.1 mbLg SW EL PINAR.IHI
1123926 28/01/2012 23:03:33 27.6856 -18.0586 14.0 0.9 mbLg SW EL PINAR.IHI

1123933 29/01/2012 00:16:21 27.6695 -18.0764 22 1.2 4 SW EL PINAR.IHI 12070

1123934 29/01/2012 00:24:36 27.6312 -18.0475 14 2.4 4 SW EL PINAR.IHI
1123940 29/01/2012 01:10:39 27.7139 -18.0615 12 1.3 4 SW FRONTERA.IHI
1123941 29/01/2012 01:10:20 27.7303 -18.0744 14 1.0 4 SW FRONTERA.IHI
1123943 29/01/2012 02:08:05 27.6820 -18.0654 12 1.2 4 SW EL PINAR.IHI
1123944 29/01/2012 06:50:19 27.7670 -18.0883 13 0.7 4 W FRONTERA.IHI

1123946 29/01/2012 07:31:33 27.7239 -18.0659 14 0.9 4 SW FRONTERA.IHI
1123945 29/01/2012 07:52:06 27.7328 -18.0874 19 1.1 4 W FRONTERA.IHI
1123947 29/01/2012 08:25:24 27.7171 -18.0653 16 1.1 4 SW FRONTERA.IHI

quote:

The volcano ejected lava fragments up to 3 meters

From early yesterday morning was seen an area with abundant emission output of smoking material. In a departure from the Salvamar Adhara Inspection, Marine Salvage, there is abundant emission of lava fragments of large size, some of them more than 3 meters, which explode violently before sinking.

DIARIOELHIERRO.ES, writing (01.29.2012. 11:35 pm)
The volcano has returned to remove large chunks of lava to the surface of the sea calms. From early yesterday morning, Saturday, a high transmission area with plenty of material out steaming.

In a departure from the Salvamar Adhara inspection, Maritime deSalvamento, there was abundant emission of lava fragments of large size, some of them more than 3 meters, which explode violently before sinking.

About 12 hours begins to decay at the surface emission and evening shows only slight bubbling ring.

quote:

The INVOLCAN shows a shift in the diffuse emission of CO2 by the volcano island of El Hierro

From mid-January is a slight upward trend in carbon dioxide emissions reached 904 ± 30 tonnes per day

Scientists at the Institute of Technology and Renewable Energies (ITER), an agency of the Cabildo of Tenerife, and is now part of volcanological Institute of the Canaries (INVOLCAN) have reported to management of the Civil Protection Special Plan for Volcanic Risk Canary Islands (PEVOLCA) that are registering a change of trend in the diffuse emission of carbon dioxide (CO2) into the atmosphere by the volcano island of El Hierro in the second half of January, reaching the 904 ± 30 tons per day in late January. This change in trend is observed after a downward trend of the diffuse emission of carbon dioxide (CO2) into the atmosphere by the volcano island of El Hierro since late November, when it came to achieving the 2398 ± 115 tons per day until mid-January, when he came to record an emission rate of 661 ± 37 tonnes per day. To clarify that these values ​​refer to the emission of carbon dioxide (CO2) that occurs through the underwater eruption of El Hierro, but the amount of carbon dioxide (CO2) emitted to the atmosphere through the environment surface (soil-air interface) that makes up the 278 km2 area of ​​the Island Meridian.

To obtain these results are carried out scientific surveys, involving hundreds of diffuse flux measurements of carbon dioxide (CO2) made across the surface of the island of El Hierro, in order to investigate the spatiotemporal variations of the diffuse emission of carbon dioxide (CO2) into the atmosphere by the volcano island of El Hierro. The interest and importance of this work on diffuse emission of carbon dioxide (CO2) for volcanic surveillance because the information generated through these scientific surveys can not be obtained through permanent instrumental networks.

Other scientific reasons that support the interest of these jobs are supervisory role as a driving force gases from volcanic eruptions, which carbon dioxide (CO2) is the second major component of volcanic gases after water vapor and that the low solubility of carbon dioxide (CO2) in molten silicitados (magma) favor the escape of carbon dioxide (CO2) with ease of volcanic systems in depth.

These scientific surveys have failed to materialize due to MAKAVOL project "Capacity Building of R + D + i + d to contribute to the reduction of volcanic risk in the Macaronesia (MAC/3/C161)" which is being co-funded by the Transnational Cooperation Programme of the European Union Madeira-Canary-Azores (MAC 2007-2013) and the collaboration of the Island Councils of Tenerife and El Hierro.

INVOLCAN is an institution demanded unanimously by the Senate (2005), Parliament of the Canary Islands (2006) and House of Representatives (2009) with the aim of contributing to improving and optimizing the management of volcanic risk in Spain.


Picture Pie
Temporal evolution of the diffuse emission of carbon dioxide (CO2) in the island of El Hierro (red circles) recorded by the INVOLCAN and the daily number of earthquakes located above magnitude 1.7 by the National Seismic Network (IGN).

quote:

[AVCAN]
The sky in La Restinga, today at 18:44 facing west. A nice planetary alignment. ¿Or not will influence the behavior of the volcano? We will see or not see it, or just the opposite. (JR)

quote:

Update 29/01 – 23:35 UTC
- The number of earthquakes is rising day after day which is not good news for El Hierro and the scientists. Even with magma still flowing out of the main vent, the pressure is building below the island. 16 earthquakes is the highest number since many weeks.
Julio del Castillo Vivero has created a Google earth file showing the location and the magnitude of the earthquakes.


Update 29/01 – 02:48 UTC
- Harmonic tremor is holding well since it got stronger at 21/03 yesterday.
- Already 3 earthquakes today
30/01/2012 00:01 Depth 13 km M 1.0 SW EL PINAR
30/01/2012 00:31 Depth 13 km M 1.0 SW FRONTERA
30/01/2012 00:32 Depth 11 km M 1.3 W FRONTERA

quote:

NOTE AVCAN 434 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - 30 January 2012-8:45 am peninsular - seismic-volcanic activity remains moderate, with more earthquakes located microseismicity and having no sign of tremor, located from the central Golfo area , from the high mountain area to the sea las calmas Continued volcanic tremor signal in the eruption of la Restinga, and even decreases while still alternating periods with low and quiet tremor with periods where it is more unstable and looks. The last one started last night just after 21:00 pm and am calmed. Keep coming and smoldering pyroclastic floating in the sea at the moment is the most obvious statement that the volcano continues to erupt. Magnitude between 1.4 and 0.6. New earthquakes 13. Depth between 11.0 and 14.2km (and one 15.2km). The day before yesterday 12. Yesterday 9. Now go 9. A total of 12,091 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

DAY 30 JAN EARTHQUAKES. - Light Blue (6)
DAY 29 JAN EARTHQUAKES. - Rosa (16)
DAY 28 JAN EARTHQUAKES. - Light green (9)
DAY 27 JAN EARTHQUAKES. - Red (12)
DAY 26 JAN EARTHQUAKES. - Dark Blue (6)
EARTHQUAKES OF THE DAY JAN 23 to 25. - Yellow (22)

The earthquakes of today are the central area of the island, with one in the el Golfo Coast, 3 in the mountain area and two in the las Calmas Sea near the Julan. The earthquakes of the past are further west aligned in the NNW-SSE Direction from Sabine to the Sea of las Calmas through the high mountain area. Day before yesterday was more in the area of Julan and las Calmas Sea to the area the eruptive. before yesterday accumulate in Julan area and two in Frontera and coincides with one of the previous day along the coast. You will see a series of alignments against Cala Tacorón EO entering land and other axes NS, NE-SW, NNE-SSW and NNW-SSE.

1123950 29/01/2012 14:12:38 27.7747 -18.0217 15.2 0.7 mbLg NW FRONTERA.IHI
1123951 29/01/2012 15:58:53 27.7450 -18.0554 12.0 1.0 mbLg W FRONTERA.IHI 12080

1123952 29/01/2012 19:23:24 27.6796 -18.0514 14.2 1.1 mbLg SW EL PINAR.IHI
1123971 29/01/2012 19:26:14 27.6786 -18.0328 11.0 1.4 mbLg SW EL PINAR.IHI
1123972 29/01/2012 19:35:17 27.7050 -18.0569 14.3 0.8 mbLg W EL PINAR.IHI
1123973 29/01/2012 19:48:21 27.6944 -18.0383 12.2 1.0 mbLg W EL PINAR.IHI
1123975 29/01/2012 20:32:02 27.6818 -18.0454 13.3 0.6 mbLg SW EL PINAR.IHI

1123995 30/01/2012 00:01:50 27.6776 -18.0735 12.9 1.0 mbLg SW EL PINAR.IHI
1124004 30/01/2012 00:31:44 27.7150 -18.0918 13.3 1.0 mbLg SW FRONTERA.IHI
1124005 30/01/2012 00:32:36 27.7429 -18.0656 11.0 1.3 mbLg W FRONTERA.IHI
1124012 30/01/2012 03:14:29 27.7064 -18.0562 12.6 1.0 mbLg W EL PINAR.IHI
1124010 30/01/2012 03:34:14 27.7123 -18.0483 12.0 1.3 mbLg W EL PINAR.IHI 12090

1124040 30/01/2012 06:02:41 27.6800 -18.0411 12.3 0.8 mbLg SW EL PINAR.IHI

quote:

Update 30/01 – 13:40 UTC
- Strong activity at the eruption site now, with many SLS coming out to the surface, while harmonic tremor remains at low levels.

quote:

Update 31/01 07:00 UTC
- 5 earthquakes since midnight UTC. The 04:16 earthquake occurred very close to the main vent.
31/01/2012 02:53 Depth 12 km M 0.7 SW FRONTERA
31/01/2012 04:04 Depth 12 km M 1.6 W EL PINAR
31/01/2012 04:16 Depth 17 km M 1.1 SW EL PINAR
31/01/2012 04:58 Depth 12 km M 0.4 W FRONTERA
31/01/2012 05:30 Depth 16 km M 1.1 NW FRONTERA
- Harmonic tremor survives but only at minimal levels

quote:

NOTE AVCAN 435 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - 31 January 2012-11:00 h peninsular - seismic-volcanic activity remains moderate, with more earthquakes located microseismicity and having no sign of tremor. Highlight 3 earthquakes aligned along the supposed eruptive area, the southernmost of 7.3km. Continued volcanic tremor signal in the eruption of la Restinga, and even decreases while still alternating periods with low and quiet tremor with periods where it is more unstable and looks. After a quiet morning, the tremor is rising in the last hours. Keep coming and smoldering pyroclastic floating in the sea at the moment is the most obvious statement that the volcano continues to erupt. Magnitude between 1.4 and 0.4. New earthquakes 13. Depth between 11.6 and 14.3km (7.3km and one and three little deeper to 16.1, 16.6 and 17.1km). The day before yesterday 12. Yesterday 9. Now go 9. A total of 12,091 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).


DAY 31 JAN EARTHQUAKES. - Red (8)
DAY 30 JAN EARTHQUAKES. - Light Blue (13)
DAY 29 JAN EARTHQUAKES. - Rosa (16)

The three earthquakes today in the NW-SE aligned eruptive, two in the el Golfo Sea and three in the mountain area, which must be added several yesterday in the same area, but broader in the central area of the island, and one in the Gulf Coast, 3 in the mountain area and two in the las Calmas sea near the Julan. The earthquakes are antesdeyer west aligned in the NNW-SSE Direction from Sabine to the Sea of las ​​Calmas through the high mountain area.

1124042 30/01/2012 06:33:54 27.7126 -18.0066 14.3 1.2 mbLg W EL PINAR.IHI
1124079 30/01/2012 08:09:18 27.7883 -18.0804 13.9 0.7 mbLg NW FRONTERA.IHI
1124082 30/01/2012 08:27:51 27.7421 -18.0111 13.3 1.0 mbLg SW FRONTERA.IHI
1124104 30/01/2012 11:00:16 27.7004 -18.0412 11.6 0.9 mbLg W EL PINAR.IHI

1124178 30/01/2012 16:42:42 27.7221 -18.0425 11.8 1.5 mbLg SW FRONTERA.IHI
1124183 30/01/2012 18:23:15 27.7070 -18.1082 16.6 1.7 mbLg SW FRONTERA.IHI
1124185 30/01/2012 19:09:55 27.7384 -18.0615 12.9 1.1 mbLg SW FRONTERA.IHI

1124198 31/01/2012 02:53:01 27.7195 -18.0690 12.1 0.7 mbLg SW FRONTERA.IHI
1124199 31/01/2012 04:04:42 27.7097 -18.0414 12.2 1.6 mbLg W EL PINAR.IHI 12100

1124200 31/01/2012 04:16:07 27.6196 -18.0201 17.1 1.1 mbLg SW EL PINAR.IHI
1124201 31/01/2012 04:58:45 27.7616 -18.0557 11.7 0.4 mbLg W FRONTERA.IHI
1124202 31/01/2012 05:30:58 27.7887 -18.1167 16.1 1.1 mbLg NW FRONTERA.IHI
1124226 31/01/2012 06:01:07 27.7263 -18.0621 12.4 0.9 mbLg SW FRONTERA.IHI
1124225 31/01/2012 06:04:34 27.5968 -17.9692 7.3 0.7 mbLg S EL PINAR.IHI

1124224 31/01/2012 06:09:50 27.6398 -18.0573 - 0.5 mbLg SW EL PINAR.IHI

La Restinga 20120131 10:04 UTC - eruption stain, helicopter

quote:

Op woensdag 1 februari 2012 08:44 schreef Jumparound het volgende:
ik zie een beginnende tremor

VUELO CIENT�FICO INVOLCAN - GC 310112 - VOLC�N SUBMARINO DEL HIERRO - CENIZAS Y LAVA HUMEANTE- IV

quote:

NOTE AVCAN 436 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - 01 FEBRUARY 2012-11:30 h peninsular - seismic-volcanic activity continues to moderate with quakes in the mountain area, the el Golfo and the Sea of las calmas, and some microseismicity not localized. Continued volcanic tremor signal in the eruption of the Restinga, and has fallen steadily to increase in general terms, alternating periods with low and quiet tremor with periods where it is more unstable and is, today has started to increase at about 7:00 am hydromagmatic explosions. After a quiet morning. Keep coming and smoldering pyroclastic floating in the sea at the moment is the most obvious statement that the volcano continues to erupt. Magnitude between 2.1 and 0.6. New earthquakes 9. Depth between 11.8 and 14.3km (and one 10.3km). The day before yesterday 13. Yesterday 14. Now go 3. A total of 12,116 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).


DAY 31 JAN EARTHQUAKES. - Light Green (3)
DAY 31 JAN EARTHQUAKES. - Red (14)
DAY 30 JAN EARTHQUAKES. - Light Blue (13)
DAY 29 JAN EARTHQUAKES. - Rosa (16)

Earthquakes today are three, the last in the sea of las calmas, and the other two in the el Golfo area, one on the ground and another at sea. NNW-SSE alignments Senotan the dorsal area south and normal alignment. Last night the activity concentrated in the area under the peaks and Tanganasoga, plus some in the Sea of las Calmas and frontera, among them very close to the NW-SE aligned eruptive To all these we must add several in the same area before yesterday, but the wider central area of ​​the island, and one in the Gulf Coast, 3 in the mountain area and two in the Calm sea near the Julan. The earthquakes of the day 29 are further west aligned in the NNW-SSE Direction from Sabine to the Sea of ​​Calm through the high mountain area.

1124420 31/01/2012 19:40:22 27.7370 -18.0175 11.8 1.3 mbLg SW FRONTERA.IHI
1124421 31/01/2012 21:22:26 27.7286 -18.0729 13.9 0.7 mbLg SW FRONTERA.IHI
1124422 31/01/2012 22:07:34 27.7116 -18.0476 13.7 0.7 mbLg W EL PINAR.IHI 12110

1124423 31/01/2012 22:13:36 27.7340 -18.0613 12.4 1.1 mbLg SW FRONTERA.IHI
1124424 31/01/2012 22:54:18 27.7261 -18.0643 12.6 1.2 mbLg SW FRONTERA.IHI
1124425 31/01/2012 23:04:56 27.6623 -18.0652 13.9 1.3 mbLg SW EL PINAR.IHI

1124427 01/02/2012 01:29:15 27.7694 -18.0649 13.7 0.8 mbLg W FRONTERA.IHI
1124428 01/02/2012 01:48:56 27.7414 -18.0108 10.3 0.6 mbLg SW FRONTERA.IHI

1124435 01/02/2012 06:51:47 27.6682 -18.0558 14.3 2.1 mbLg SW EL PINAR.IHI

quote:

THE SUBMARINE VOLCANO RESTINGA continues to erupt magmatic material to the surface.

02/01/2012 ... 12:32 - Ministry of Economy, Finance and Security

In yesterday were able to see different shades in the spot generated by the eruption

The submarine volcano continued to ejecting La Restinga magmatic material to the surface of the las Calmas Sea and off for the last few days.

From early morning yesterday, as confirmed by the National Geographic Institute, could be seen in the broadcast area the presence of ash generated in a central spot of brown and rings of different colors around it, surrounded by a large green area. As the day progressed, the area of ​​emission of ash decreased in size and greenish zone extended to the east. Throughout the day there was gas emissions and steaming lava fragments in the morning on an ongoing basis and in the evening intermittently.

In terms of seismicity, IGN yesterday located 13 earthquakes between magnitudes 0.7 and 1.7 and depths between 12 and 17 kilometers west of the island in the Gulf area and the Julan. On Monday, January 30, there were 14 movements with magnitudes between 0.4 and 1.6 on the Richter scale, in the same area at the same depth.

quote:

Eruptive swell in Restinga. No, now is not outpourings of balls. This is a wave produced in situ by the volcano, which must have won meters in height and comes to the surface very slowly. (JR)

Klik om te vergroten

La Restinga, El Hierro Waves at the Volcano 1st February

quote:

NOTE AVCAN 437 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - FEBRUARY 02 2012-12:00 h peninsular - seismic-volcanic activity continues to moderate, with seismicity located today in the western el Golfo Coast marine and yesterday in the Sea of las Calmas, and some non-localized microseismicity. Continued volcanic tremor signal in the eruption of the Restinga, which is increasing its activity, because since yesterday at 07:00 h restart has not stopped, as he had done the previous days, the explosion seems to have fallen somewhat , are less hydromagmatic explosions. La Mancha output produced by the underwater material is larger and this morning has gotten into the port of La Restinga. Magnitude between 1.6 and 0.9. New earthquakes 5. Depths to 10.1, 12.2, 12.5, 13.1 and 14.8km. The day before yesterday 14. Yesterday 5. Now go 3. A total of 12,121 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

DAY 02 FEB EARTHQUAKES. - Yellow (3)
DAY 01 FEB EARTHQUAKES. - Light Green (5)
DAY 31 JAN EARTHQUAKES. - Red (14)
DAY 30 JAN EARTHQUAKES. - Light Blue (13)
DAY 29 JAN EARTHQUAKES. - Rosa (16)

Earthquakes today are three in the el Golfo area, aligned NW-SE, from the coast toward the front of the Tanganasoga NW. The seismicity forms a spiral, with three distinct NNE-SSW alignment, NS and NNW-SSE from all the Tanganosoga and two arms, one to the north towards the W in the area where the swarm began and another in the south to eruptive area. It also highlights other alignments in the direction WNW-ESE in the line of summits and on the coast of Julan.

1124573 01/02/2012 19:04:30 27.6818 -18.0607 12.5 1.6 mbLg SW EL PINAR.IHI
1124576 01/02/2012 22:22:24 27.6713 -18.0179 10.1 1.0 mbLg SW EL PINAR.IHI
1124579 02/02/2012 00:36:57 27.7451 -18.0635 12.2 1.1 mbLg W FRONTERA.IHI
1124583 02/02/2012 04:40:59 27.7527 -18.0696 13.1 0.9 mbLg W FRONTERA.IHI 12120

1124584 02/02/2012 04:41:44 27.7683 -18.0854 14.8 1.1 mbLg W FRONTERA.IHI

quote:

NOTE AVCAN 438 - EARTHQUAKE ACTIVITY-VOLCANIC - HIERRO ISLAND - FEBRUARY 03 2012-10:45 h peninsular - seismic-volcanic activity continues to moderate-high with simian located today in the marine area del Golfo and a deep to the east by the coast and on land in the mountain area to the Sea of las Calmas in the Julan, and some non-localized microseismicity. Continued volcanic tremor signal in the eruption of the Restinga, which continues to increase slightly its activity, and since that restart at 07:00 am on day 01, has not stopped, as he had done the previous days, the explosion seems to has increased somewhat, they are some explosions hydromagmatic. Magnitude between 2.7 and 1.1. New quakes 6. Felt earthquakes 1. Depths to 12.6, 13.1, 15.0, 16.6, 16.6 and 22.8km. Before yesterday 5. Yesterday 2. Now go 6. A total of 12,127 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

DAY 03 FEB EARTHQUAKES. - Dark Blue (6)
DAY 02 FEB EARTHQUAKES. - Yellow (3)
DAY 01 FEB EARTHQUAKES. - Light Green (5)
DAY 31 JAN EARTHQUAKES. - Red (14)
DAY 30 JAN EARTHQUAKES. - Light Blue (13)
DAY 29 JAN EARTHQUAKES. - Rosa (16)

Earthquakes today, three are still in the area of the three yesterday in the Golfo area, aligned NW-SE, from the coast toward the front of the Tanganasoga NW. Another earthquake near the coast at la frontera and has been at great depth, indicating a 22.8 km magma input into the system .. the truth is that almost all the deep are the area lately ... and two in the Julan from the mountain area to the coast, highlighting a 2.7 that has been felt.

The seismicity of recent days is a spiral, with three clearly aligned NNE-SSW, NS and NNW-SSE from all the Tanganosoga and two arms, one to the north towards the W in the area where the swarm began and another in the south to the eruptive area. It also highlights other alignments in the direction WNW-ESE in the line of summits and on the coast of Julan.

1124723 03/02/2012 00:17:41 27.7699 -18.0793 16.6 1.3 mbLg W FRONTERA.IHI
1124730 03/02/2012 00:45:23 27.7668 -18.0879 16.6 1.1 mbLg W FRONTERA.IHI
1124731 03/02/2012 00:54:53 27.7884 -18.1037 15.0 1.1 mbLg NW FRONTERA.IHI
1124733 03/02/2012 01:03:25 27.7154 -18.0605 13.1 1.7 mbLg SW FRONTERA.IHI

1124732 03/02/2012 01:14:00 27.7002 -18.0593 12.6 -1* 2.7 mbLg W EL PINAR.IHI
1124734 03/02/2012 01:59:37 27.7538 -18.0324 22.8 1.4 mbLg W FRONTERA.IHI
^{* (NOTE => In times, 2.7 this is felt based on feedback from FB AVCAN in the IGN as the meaning is not set)}

quote:

NOTE AVCAN 439 - QUAKE-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 04 2012-11:00 pm peninsular - seismic-volcanic activity remains moderate to high, with a remarkable simicidad 3.4 as in the South, specifically in the area near Punta del Lajial the coast. Much is still observed microseismicity in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, which is down slightly but the amplitude of the signal, has increased its explosiveness, with muchass hydromagmatic explosions, especially at dawn (see link). Magnitude between 2.7 and 1.1. New earthquakes 11. Felt earthquakes 1. Depths to 11.9 and 14.5km (and two to 8.1 and 9.6 and two at 15.9 and 16.4). Yesterday 3. Yesterday 11. Today van 6. A total of 12,138 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Henry).


DAY 04 FEB EARTHQUAKES. - Red (6)
DAY 03 FEB EARTHQUAKES. - Dark Blue (11)
DAY 02 FEB EARTHQUAKES. - Yellow (3)
DAY 01 FEB EARTHQUAKES. - Light Green (5)

In Today's earthquakes, very close to 3.4 along the coast in the Punta del Lajial has been two very close to the sea of Calm and a more inward in the Mar. The other two are in the area of peaks and the Julan by the other side of tanganasoga giving a NS alignment. It is also seen other very well that we had not seen so far down the slopes of Julan and continuity in the Gulf NW-SE and if extrapolated, would pass by the Restinga (Enrique)

1124781 03/02/2012 09:10:01 27.7031 -18.0386 11.9 1.1 mbLg W EL PINAR.IHI
1124782 03/02/2012 09:14:51 27.7471 -18.0399 8.1 0.8 mbLg W FRONTERA.IHI
1124842 03/02/2012 14:13:13 27.7261 -18.0123 9.6 1.2 mbLg SW FRONTERA.IHI 12130

1124837 03/02/2012 14:35:52 27.6913 -18.0306 12.9 2.4 mbLg SW EL PINAR.IHI
1124852 03/02/2012 14:42:35 27.6956 -18.0332 14.1 1.7 mbLg W EL PINAR.IHI

1124858 04/02/2012 02:41:53 27.7156 -18.0581 14.5 1.7 mbLg SW FRONTERA.IHI
1124859 04/02/2012 03:04:33 27.6428 -18.0935 15.9 1.6 mbLg SW EL PINAR.IHI
1124870 04/02/2012 04:40:28 27.6508 -18.0230 16.4 -1 3.4 mbLg SW EL PINAR.IHI

1124878 04/02/2012 04:43:00 27.6547 -18.0328 14.5 1.6 mbLg SW EL PINAR.IHI
1124888 04/02/2012 05:43:38 27.6969 -18.0621 12.9 1.3 mbLg W EL PINAR.IHI
1124889 04/02/2012 06:35:17 27.6567 -18.0428 13.6 1.5 mbLg SW EL PINAR.IHI

quote:

Earthquake report
- Geolurling (nickname) is a specialist plotter and has created 3- and 4-D animations of earthquakes and GPS data since many months. The first part of the video goes into the discussion of using GPS data from a research project from the Involcan and a Japanese professor. We are showing this video because it gives a very good impression of where the earthquakes are taking place (second part). The plotted earthquakes have taken place in between Jan. 1 and Febr. 2.

Hierro Quakes 3Feb.swf

quote:

NOTE AVCAN 440 - QUAKE-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 05 2012-11:30 pm peninsular - seismic-volcanic activity remains moderate, with seismicity located beneath the summit area. Microseismicity is also detected but not located in the spectrogram. Continued volcanic tremor signal in the eruption of La Restinga, which although slightly increasing the amplitude of its signal, yesterday was rising, with up to midnight or so and then came down, but now is rising again and continued explosiveness, but less than yesterday, with some explosions hydromagmatic. Magnitude between 2.1 and 1.3. New earthquakes 2. Depths at 10.4 and 11.8 km. 11 yesterday. Yesterday 7. Today is 1. A total of 12,140 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Henry).

DAY 05 FEB EARTHQUAKES. - Rosa (1)
DAY 04 FEB EARTHQUAKES. - Red (7)
DAY 03 FEB EARTHQUAKES. - Dark Blue (11)
DAY 02 FEB EARTHQUAKES. - Yellow (3)
DAY 01 FEB EARTHQUAKES. - Light Green (5)

The map of seismic activity in the last 5 days, the quake today was under her skirt in the Northwest Tanganasoga Valley del Golf and 2.1 of yesterday was in the area of peaks. Yesterday addition of 3.2 near the coast in the Punta del Lajial has had two very close to the sea de las Calmas and a more inward in the Sea The other two were in the area of peaks and Julan by other side of tanganasoga giving a NS alignment. It is also seen other very well that we had not seen so far down the slopes of Julan and continuity in the Gulf NW-SE and if extrapolated, would pass by the Restinga (Enrique).

1124905 04/02/2012 16:48:01 27.7106 -18.0391 11.8 2.1 mbLg W EL PINAR.IHI
1124980 05/02/2012 07:37:13 27.7339 -18.0701 10.4 1.3 mbLg SW FRONTERA.IHI 12140

quote:

NOTE AVCAN 441 - QUAKE-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 06 2012-12:00 pm peninsular - seismic-volcanic activity remains moderate, with seismicity located beneath the area Tanganasoga and summits. There is also a sismito in her sea of ​​calm. Microseismicity is also detected but not located in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, which although it has declined to almost nothing, but still there. Note that at midnight last night and early early this morning had a few hours in which much increased amplitude and explosiveness, with many explosions hydromagmatic, then dsiminuir rapidly but not suddenly, but more or less gradual. Magnitude between 1.8 and 0.9. New earthquakes 5. Depths at 9.6, 11.8, 12.8, 13.0 and 13.6km. Yesterday 7. Yesterday 3. Today van 3. A total of 12,145 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Henry).

DAY 06 FEB EARTHQUAKES. - Light Blue (3)
DAY 05 FEB EARTHQUAKES. - Rosa (3)
DAY 04 FEB EARTHQUAKES. - Red (7)
DAY 03 FEB EARTHQUAKES. - Dark Blue (11)
DAY 02 FEB EARTHQUAKES. - Yellow (3)
DAY 01 FEB EARTHQUAKES. - Light Green (5)

The map of seismic activity in the last 6 days of the three earthquakes today (light blue), two have been under the Tanganasoga next to the valley of the Gulf and another 1.3 in the Sea of ​​Calmas.Ayer (Rosa ) afternoon a couple more in the area of summits in the alignment from the NS to the Julan Tangansoga. Addition of 3.2 before yesterday very close to shore in the Punta del Lajial has had two very close to the sea of Calm and a more inward in the Sea The other two were in the area of peaks and Julan by other side of tanganasoga giving a NS alignment. It is also seen other very well that we had not seen so far down the slopes of Julan and continuity in the Gulf NW-SE and if extrapolated, would pass by the Restinga (Enrique).

1124984 05/02/2012 12:05:05 27.7000 -18.0503 12.8 1.8 mbLg W EL PINAR.IHI
1125010 05/02/2012 16:07:08 27.7276 -18.0579 11.8 1.7 mbLg SW FRONTERA.IHI

1125078 06/02/2012 06:02:50 27.7208 -18.0349 9.6 0.9 mbLg SW FRONTERA.IHI
1125082 06/02/2012 06:59:18 27.6444 -18.0628 13.6 1.3 mbLg SW EL PINAR.IHI
1125084 06/02/2012 07:50:41 27.7330 -18.0691 13.0 1.3 mbLg SW FRONTERA.IHI

quote:

Update 06/02 18:02 UTC
- The activity at the eruption site has been quite with almost a constant faint jacuzzi. We havent seen SLS. Should earthquakes continue, we would expect a rise in the activity.
- INVOLCAN has just published an incredible set of todays photographs taken from the Guardia Civil helicopter flight, showing, as we commented today, a vivid blue stain, formed by gas release, with CO2 bubbles, and a bigger green stain, formed by nitrogen and sulfur gases, that lays inside La Restinga port.

quote:

In this exclusive graphical performed on an image from Google Earth, you can see in detail only the coordinates of the active face today, as in the photos of flight presents scientific phenomena of intense degassing. The coordinates of the other mouths effectively correspond to other places where materials or gases have come from the principle of submarine fissural eruption of La Restinga.
[bron]

quote:

NOTE AVCAN 442 - QUAKE-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 07 2012-12:00 pm peninsular - seismic-volcanic activity remains moderate to high, with activity in the area of peaks in the area of ​​Tanganasoga, the Julan and the sea of las Calmas. also looks pretty microseismicity detected after midnight but not located in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, which although it has declined to almost nothing, about 03:00 am in the morning today and amplitude increase much in the explosion, with many explosions hydromagmatic. Magnitude between 2.6 and 0.7. New earthquakes 9. Felt earthquakes 2. Depths between 10.9 and 14.7km (and each other at 6.3 and 16.6). Yesterday 3. Yesterday 11. Today is 1. A total of 12,154 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Henry).

DAY 07 FEB EARTHQUAKES. - Orange (1)
DAY 06 FEB EARTHQUAKES. - Light Blue (11)
DAY 05 FEB EARTHQUAKES. - Rosa (3)
DAY 04 FEB EARTHQUAKES. - Red (7)
DAY 03 FEB EARTHQUAKES. - Dark Blue (11)
DAY 02 FEB EARTHQUAKES. - Yellow (3)
DAY 01 FEB EARTHQUAKES. - Light Green (5)

The map of seismic activity in the last week, the only today is on the coast of Julan and yesterday (light blue), two have since Tanganasoga in the valley of the Golfo to the Sea of las Calmas Crossing the Julan. before yesterday (Rosa) afternoon a couple more in the area of summits in the alignment from the NS to the Julan Tangansoga. Addition of 3.2 before yesterday very close to shore in the Punta del Lajial has had two very close to the sea of las Calmas and a more inward in the Sea The other two were in the area of peaks and Julan by tanganasoga other side of giving a NS alignment. It is also seen other very well that we had not seen so far down the slopes of Julan and continuity in the Gulf NW-SE and if extrapolated, would pass by the Restinga (Enrique).

11125116 06/02/2012 12:09:28 27.6839 -18.1093 16.6 1.9 mbLg W EL PINAR.IHI
1125142 06/02/2012 13:26:56 27.6517 -18.1058 6.3 1.1 mbLg SW EL PINAR.IHI

1125144 06/02/2012 14:11:59 27.7164 -18.0472 11.2 0.7 mbLg SW FRONTERA.IHI
1125147 06/02/2012 15:00:21 27.7127 -18.0781 14.2 1.0 mbLg SW FRONTERA.IHI
1125148 06/02/2012 15:26:09 27.7115 -18.0604 12.1 1.8 mbLg SW FRONTERA.IHI 12150

1125145 06/02/2012 15:45:06 27.6997 -18.0613 11.9 -1 2.6 mbLg W EL PINAR.IHI
1125149 06/02/2012 18:04:03 27.6928 -18.0470 10.9 -1* 1.7 mbLg W EL PINAR.IHI
1125151 06/02/2012 21:43:25 27.6948 -18.0761 14.7 1.7 mbLg W EL PINAR.IHI

1125159 07/02/2012 02:21:25 27.6805 -18.0516 10.8 1.0 mbLg SW EL PINAR.IHI

quote:

NOTE AVCAN 443 - QUAKE-VOLCANIC ACTIVITY - ISLA DEL HIERRO - 08 FEBRUARY 2012-12:00 h peninsular - seismic-volcanic activity remains moderate, with activity in the area of peaks in the area of ​​Tanganasoga, the Julan and the sea of las Calmas. also looks pretty microseismicity detected after midnight but not located in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, which although it has declined to almost nothing, yesterday had several esplosiones quite importanes hydromagmatic at noon. New earthquakes 14. Felt earthquakes 2. Magnitude between 2.3 and 0.8. Depths between 10 and 15km (and one to 20.5). 11 yesterday. Yesterday 10. 5 are today. A total of 12,168 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Henry).

DAY 08 FEB EARTHQUAKES. - Red (5)
DAY 07 FEB EARTHQUAKES. - Orange (10)
DAY 06 FEB EARTHQUAKES. - Light Blue (11)

The map of seismic activity in the last days, concentrated in the area of peaks in the area of ​​Tanganasoga, the Julan and the sea de las Calmas. Noteworthy that deep earthquake in the area of Cala Tacorón which may indicate contribution of new magma from deep in the system. (Enrique)

1125215 07/02/2012 10:29:21 27.6729 -18.0385 15.0 1.4 mbLg SW EL PINAR.IHI

1125210 07/02/2012 10:55:14 27.7206 -18.0516 14.4 1.3 mbLg SW FRONTERA.IHI
1125204 07/02/2012 11:37:49 27.6866 -18.0422 13.3 2.3 mbLg SW EL PINAR.IHI
1125242 07/02/2012 13:31:08 27.6755 -18.0538 11.5 1.4 mbLg SW EL PINAR.IHI
1125243 07/02/2012 13:58:44 27.7252 -18.0626 10.5 1.6 mbLg SW FRONTERA.IHI
1125244 07/02/2012 20:20:55 27.6694 -18.0497 13.3 1.0 mbLg SW EL PINAR.IHI 12160

1125245 07/02/2012 22:25:26 27.5455 -18.0210 10.0 1.2 mbLg S EL PINAR.IHI
1125246 07/02/2012 22:57:26 27.7369 -18.0282 10.9 1.8 mbLg SW FRONTERA.IHI
1125247 07/02/2012 23:30:07 27.7150 -18.0476 12.1 1.7 mbLg SW FRONTERA.IHI

1125249 08/02/2012 00:42:03 27.7006 -18.0632 14.0 1.3 mbLg W EL PINAR.IHI
1125250 08/02/2012 00:43:14 27.7146 -18.0765 11.8 1.3 mbLg SW FRONTERA.IHI

1125253 08/02/2012 02:52:19 27.6974 -18.0397 11.3 1.4 mbLg W EL PINAR.IHI
1125263 08/02/2012 06:12:40 27.6624 -18.0462 14.3 0.8 mbLg SW EL PINAR.IHI
1125264 08/02/2012 07:33:12 27.6461 -18.0396 20.5 1.4 mbLg SW EL PINAR.IHI

quote:

NOTE AVCAN 445 - QUAKE-VOLCANIC ACTIVITY - ISLE OF IRON - 10 FEBRUARY 2012-11:30 h peninsular - seismic-volcanic activity remains moderate, with activity in the Julan and the Sea de las Calmas. Also looks pretty microseismicity detected but not located in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, and since reappeared after 04:00 am UTC yesterday continues to increase steadily, in fact since the last part of the amplitude is more than double. New earthquakes 3. Magnitude between 1.7 and 1.1. Depths between 11.3 and 12.5km. Yesterday 9. Yesterday 5. Today will 2. A total of 12,179 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Henry).

DAY 10 FEB EARTHQUAKES. - Light green (2)
DAY 09 FEB EARTHQUAKES. - Yellow (5)
DAY 08 FEB EARTHQUAKES. - Red (9)
DAY 07 FEB EARTHQUAKES. - Orange (10)
DAY 06 FEB EARTHQUAKES. - Light Blue (11)

1125607 09/02/2012 19:03:15 27.6780 -18.0526 12.5 1.7 4 SW EL PINAR.IHI
1125671 10/02/2012 01:56:08 27.6637 -18.0784 11.8 1.5 4 SW EL PINAR.IHI
1125674 10/02/2012 04:55:29 27.6874 -18.0619 11.3 1.1 4 W EL PINAR.IHI

quote:

NOTE AVCAN 446 - QUAKE-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 11 2012-11:30 pm peninsular - seismic-volcanic activity remains moderate, with activity in the Julan and the Sea de las Calmas yesterday aligned NNE-SSW to Frontera and also today the NE-SW to the slope of El Golfo. Also looks pretty microseismicity detected but not located in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, and since reappeared after 04:00 am UTC ... the day before yesterday continues although it has already peaked and is beginning to decline. It has also presented more instability with some explosions hydromagmatic. New earthquakes 9. Magnitude between 1.8 and 0.9. Depths between 8.1 and 12.4km. Yesterday 5. Yesterday 8. 3 are today. A total of 12,188 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

DAY 11 FEB EARTHQUAKES. - Rosa (3)
DAY 10 FEB EARTHQUAKES. - Light green (8)
DAY 09 FEB EARTHQUAKES. - Yellow (5)
DAY 08 FEB EARTHQUAKES. - Red (9)
DAY 07 FEB EARTHQUAKES. - Orange (10)
DAY 06 FEB EARTHQUAKES. - Light Blue (11)

1125789 10/02/2012 10:57:28 27.6979 -18.0641 8.7 1.8 mbLg W EL PINAR.IHI 12180

1125961 10/02/2012 20:30:52 27.6820 -18.0715 12.4 1.2 mbLg SW EL PINAR.IHI
1125963 10/02/2012 21:15:42 27.7802 -18.0085 9.5 1.0 mbLg NW FRONTERA.IHI
1125964 10/02/2012 21:43:12 27.7241 -18.0459 10.1 1.8 mbLg SW FRONTERA.IHI
1125967 10/02/2012 22:49:32 27.6570 -18.0441 8.1 1.0 mbLg SW EL PINAR.IHI
1125974 10/02/2012 23:51:10 27.6453 -18.0732 9.0 2.1 mbLg SW EL PINAR.IHI

1126000 11/02/2012 02:06:36 27.7353 -18.0065 0.9 mbLg SW FRONTERA.IHI
1126004 11/02/2012 05:23:12 27.6601 -18.0677 10.2 1.2 mbLg SW EL PINAR.IHI
1126010 11/02/2012 05:31:13 27.6720 -18.0541 11.6 1.2 mbLg SW EL PINAR.IHI

quote:

NOTE AVCAN 447 - QUAKE-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 12 2012-12:00 pm peninsular - seismic-volcanic activity remains moderate, with activity in the el Golfo bay and the Sea de las Calmas yesterday aligned NS. Also looks pretty microseismicity detected but not located in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, low enough but since yesterday after 04:00 h UTC this morning is picking up again. New quakes 8. Magnitude between 1.8 and 0.7. Depths between 8.0 and 12.7km (2.7km and one and one at 16.1km). Yesterday 8. Yesterday 5. 6 are today. A total of 12,196 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

DAY 12 FEB EARTHQUAKES. - Dark Blue (6)
DAY 11 FEB EARTHQUAKES. - Rosa (5)
DAY 10 FEB EARTHQUAKES. - Light green (8)
DAY 09 FEB EARTHQUAKES. - Yellow (5)
DAY 08 FEB EARTHQUAKES. - Red (9)
DAY 07 FEB EARTHQUAKES. - Orange (10)
DAY 06 FEB EARTHQUAKES. - Light Blue (11)

The recent earthquakes are in the el Golfo bay and Sea de las Calmas, as well as any in the area of cumbres. Note that one of yesterday and today 4 are aligned in NS direction from the Cala Tacorón - Julan and progress towards N, ie first the slope next to the del Golfo and then to the coast ... The following would be by the sea .. see .. Note that this configuration during the months of July and August preceding activity within a few days you also see. Then there is a deeper earthquake west of Tanganasoga and the slope of del Golfo area to the east, the area of the San Andreas fault.

1126022 11/02/2012 10:10:17 27.6919 -18.0251 12.7 1.8 mbLg SW EL PINAR.IHI
1126132 11/02/2012 23:58:12 27.7226 -18.0768 16.1 1.0 mbLg SW FRONTERA.IHI 12190

1126133 12/02/2012 00:16:54 27.7275 -18.0277 10.6 1.5 mbLg SW FRONTERA.IHI
1126134 12/02/2012 00:18:19 27.7346 -18.0270 9.5 1.3 mbLg SW FRONTERA.IHI
1126136 12/02/2012 01:01:01 27.7450 -18.0291 8.0 1.1 mbLg SW FRONTERA.IHI
1126137 12/02/2012 02:48:18 27.7464 -17.9894 9.8 0.7 mbLg SE FRONTERA.IH
1126139 12/02/2012 03:12:48 27.6478 -18.0452 1.4 mbLg SW EL PINAR.IHI

1126145 12/02/2012 07:35:31 27.7594 -18.0297 2.7 0.8 mbLg W FRONTERA.IHI

La Restinga 20120207 13:34 UTC - eruption stain, degassing

quote:

Sismograma de un Día en MACI (Tenerife)
Curious MACI seismogram for the day Sunday 12 which shows how they react differently, the three axes of the sensor. The bottom, the vertical axis shows a long run-wave signal and therefore of very low frequency. Could be interpreted as "earth tides? ... (JR)


NOTE AVCAN 448 - QUAKE-VOLCANIC ACTIVITY - IRON ISLAND - FEBRUARY 13 2012-10:30 pm peninsular - seismic-volcanic activity remains moderate, with activity Sea de las Calmas and a deep earthquake zone yesterday at the tip of Arenas white. Also looks pretty microseismicity detected but not located in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, yesterday rose again and remains today, albeit with a slight tendency to decrease. New quakes 6. Magnitude between 2.0 and 1.1. Depths between 10.1 and 11.6km (and one at 8.8 and one at 23.2km). Yesterday 5. Yesterday 10. Today will 2. A total of 12,196 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

DAY 13 FEB EARTHQUAKES. - Light green (2)
DAY 12 FEB EARTHQUAKES. - Dark Blue (10)
DAY 11 FEB EARTHQUAKES. - Rosa (5)

The recent earthquakes are in the sea of las calmas, except for a deep earthquake zone yesterday at the tip of Arenas Blancas Sabinosa at 23.2km and the seismicity yesterday also located on the night and morning in the el Golfo area and afternoon in the sea de las Calmas. Del Golfo activity lined up mainly in NS. (Enrique).

1126147 12/02/2012 11:28:27 27.6785 -18.0666 10.5 2.0 mbLg SW EL PINAR.IHI
1126148 12/02/2012 21:53:57 27.7579 -18.1182 23.2 1.4 mbLg W FRONTERA.IHI
1126149 12/02/2012 22:06:49 27.6974 -18.0587 8.8 1.6 mbLg W EL PINAR.IHI
1126150 12/02/2012 22:22:33 27.6887 -18.0687 11.6 1.1 mbLg W EL PINAR.IHI 12200

1126162 13/02/2012 06:10:09 27.6652 -18.0479 10.1 1.1 mbLg SW EL PINAR.IHI
1126165 13/02/2012 07:41:03 27.6571 -18.0787 10.2 1.7 mbLg SW EL PINAR.IHI

quote:

NOTE AVCAN 449 - QUAKE-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 14 2012-12:00 pm peninsular - seismic-volcanic activity remains moderate activity today with the sea de las Calmas, the Julan, and the peaks to Orchilla continued yesterday. Also looks pretty microseismicity detected but not located in the spectrogram. Continued volcanic tremor signal in the area Eruptive ... La Restinga, fell again yesterday afternoon in intensity to rise during the night and early morning and has fallen again. By the way yesterday afternoon felt hum and noise in parts of the island in the area of ​​the Mocanes and Timijiraque that coincided with one of the earthquakes (20:10). New earthquakes 12. Magnitude between 1.8 and 0.6. Depths between 9.9 and 16.1km (and one at 6.3 and one at 17.4km). Yesterday 10. Yesterday 10. 4 are today. A total of 12,214 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Henry).

DAY 13 FEB EARTHQUAKES. - Yellow (4)
DAY 13 FEB EARTHQUAKES. - Light green (10)
DAY 12 FEB EARTHQUAKES. - Dark Blue (10)
DAY 11 FEB EARTHQUAKES. - Rosa (5)
The map of seismic activity in the last 4 days, one can see how 3 of today's earthquakes are aligned in an alignment rarely seen so far, NW-SE, which coincides with that observed in the area eruption of the Restinga, in fact if it continues this alignment is reached that area. Like earthquakes today, yesterday afternoon activity was concentrated in the Sea of las Calmas and Julan mainly, but there was one morning in the el Golfo area. Highlight a deep earthquake before yesterday in the area of ​​the tip of Arenas Blancas Sabinosa at 23.2km and the seismicity before yesterday was also found on the night and morning in the el Golfo and in the afternoon at Sea de las Calmas. Del Golfo activity lined up mainly in NS. (Enrique).
1126170 13/02/2012 08:27:55 27.7003 -18.0498 10.7 1.8 mbLg W EL PINAR.IHI
1126173 13/02/2012 08:51:12 27.7395 -18.0494 6.3 0.8 mbLg SW FRONTERA.IHI
1126191 13/02/2012 10:16:46 27.7116 -18.0603 16.1 0.9 mbLg SW FRONTERA.IHI

1126252 13/02/2012 12:52:44 27.6832 -18.0803 10.5 0.6 mbLg W EL PINAR.IHI
1126272 13/02/2012 17:42:53 27.6596 -18.0701 10.9 1.5 mbLg SW EL PINAR.IHI
1126273 13/02/2012 18:03:45 27.6636 -18.0710 9.9 1.3 mbLg SW EL PINAR.IHI
1126297 13/02/2012 20:10:39 27.7136 -18.0661 10.3 1.5 mbLg SW FRONTERA.IHI
1126314 13/02/2012 21:06:27 27.6947 -18.0731 11.9 1.5 mbLg W EL PINAR.IHI 12210

1126344 14/02/2012 00:42:01 27.7269 -18.1018 17.4 1.1 mbLg SW FRONTERA.IHI
1126345 14/02/2012 01:15:10 27.7023 -18.0799 11.6 1.6 mbLg W EL PINAR.IHI
1126393 14/02/2012 07:22:43 27.6503 -18.0661 15.7 1.1 mbLg SW EL PINAR.IHI
1126450 14/02/2012 08:23:23 27.6709 -18.0551 14.1 1.6 mbLg SW EL PINAR.IHI

quote:

And this is the evolution of the released seismic energy accumulated in so far in 2012, where it looks like this up after the 3.2 the other day and indicating that the system is responsive and seeing as there are different steps .. . and doing a little analysis leads me to a question Will the pattern of reactivation of a step more or less noticeable each "10-14" days?.

If it does, we should expect an earthquake a little higher, around 3.0 degrees or something else from today to the next 3-4 days.

If, however, does not follow the pattern, we will stay where it has been a surge and the graph would follow its slope, which indicates that it continues releasing energy to be active. (Enrique)

[bron]

quote:

Update 14/02 – 16:45 UTC
- There has been an official communication [In Spanish] from the Government of Canary Islands that clarifies previous reports including an image from the bathymetry.
- “Eruption is still active, with a process of magmatic reactivation, constant vigilance will remain.
Scientists responsible of IOE, from Ramón Margalef, have confirmed to PEVOLCA that the depth of the main cone is 120 meters.
Also, from the bathymetry works done last week, scientists have recorded the emergence of a secondary cone attached to the side of the maincone having a height of 75 meters and whose summit is 200 meters from the surface.”

- “It is also apparent that the emission of material varies around the main summit. The area, East of El Julan, is the only place in which submarine volcanic activity has been detected in all surveyed areas, in the various campaigns.”

quote:

NOTE AVCAN 450 - SEISMIC-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 15 2012-8:00 pm peninsular - seismic-volcanic activity remains moderate activity today with the sea de las Calmas, Coast Julan and in the area of peaks at like yesterday with some more in the area of peaks and Frontera. Also looks pretty microseismicity detected but not located in the spectrogram. Continued volcanic tremor signal in the Eruptive area ... La Restinga, fell again yesterday afternoon in intensity to rise during the night and early yesterday morning and has since been declining, more and even seems to want to pick up something the last few hours. New earthquakes 10. Magnitude between 2.3 and 1.2. Depths between 8.8 and 11.9km (and two at 6.2 and 7.1km). Yesterday 10. Yesterday 10. 6 are today. A total of 12,226 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

DAY 15 FEB EARTHQUAKES. - Red (6)
DAY 14 FEB EARTHQUAKES. - Yellow (10)
DAY 13 FEB EARTHQUAKES. - Light green (10)
DAY 12 FEB EARTHQUAKES. - Dark Blue (10)
DAY 11 FEB EARTHQUAKES. - Rosa (5)

The seismicity map of útlimos 5 days, Los today are in the Mar de las Calmas, three along the coast of Julan and two further south. Highlight one of 2.3 in the area of peaks. Yesterday was the seismicity Nearby, including some more towards the area of peaks and Frontera. Like earthquakes now and aye, before yesterday afternoon's activity was concentrated in the Mar de las Calmas and Julan mainly, but there was one morning in the el Golfo area. Highlight a deep earthquake on 12 in the area of the tip of Arenas Blancas Sabinosa at 23.2km and the seismicity is located on the night and morning in the Golfo and in the afternoon at Sea de las Calmas. Del Golfo activity lined up mainly in NS. (Enrique).

1126539 14/02/2012 12:51:26 27.6678 -18.0561 11.3 1.9 mbLg SW EL PINAR.IHI

1126549 14/02/2012 13:01:12 27.7067 -18.0605 6.2 2.2 mbLg W EL PINAR.IHI
1126563 14/02/2012 18:23:39 27.6553 -18.0865 8.8 1.6 mbLg SW EL PINAR.IHI
1126566 14/02/2012 20:06:09 27.6232 -18.0741 9.9 1.3 mbLg SW EL PINAR.IHI
1126568 14/02/2012 22:11:31 27.7507 -18.0448 9.9 1.2 mbLg W FRONTERA.IHI
1126589 14/02/2012 23:45:11 27.6530 -18.0504 9.9 1.2 mbLg SW EL PINAR.IHI 12220

1126591 15/02/2012 01:50:54 27.6892 -18.0726 7.1 1.4 mbLg W EL PINAR.IHI
1126593 15/02/2012 02:26:24 27.6451 -18.0904 10.8 1.4 mbLg SW EL PINAR.IHI
1126605 15/02/2012 04:05:33 27.6548 -18.0571 2.0 mbLg SW EL PINAR.IHI
1126607 15/02/2012 04:15:10 27.6921 -18.0833 10.5 1.3 mbLg W EL PINAR.IHI
1126637 15/02/2012 05:02:09 27.6835 -18.0851 11.9 1.3 mbLg W EL PINAR.IHI

1126639 15/02/2012 05:21:51 27.7122 -18.0573 9.6 2.3 mbLg SW FRONTERA.IHI

quote:

Important Update 15/02 – 15:23 UTC
- 2 great new Ramon Margalef documents (including the bathymetry data) which were the basis of the Pevolca press conference from yesterday (thank you ER reader Julian). Both are in Spanish and are very technical, but some easy conclusions can be distilled from it.
Informe de campaña BIMBACHE1011-9 / 2012
Informe 9‐12 de febrero de 2012. Bimbache1011 leg 10

quote:

NOTE AVCAN 451 - SEISMIC-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 16 2012-11:00 pm peninsular - seismic-volcanic activity remains moderate activity today with the sea de las Calmas, Coast Julan and one very close to the eruptive , a little to the NW of it. Microseismicity is also detected but not located in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, takes 4 days non-stop down and it is hardly noticeable in the spectrogram, while watching the activity on the webcam and the seismogram seems to want to pick up some last hour. New earthquakes 25. Magnitude between 2.0 and 0.7. Depths between 9.4 and 12.9km (and three at 6.7, 8.1 and 8.9km and four to 15.4, 16.7, 17.3 and 19.9km). Yesterday 10. Yesterday 23. 8 are today. A total of 12,251 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

FEB. - Light Blue (8)
DAY 15 FEB EARTHQUAKES. - Red (23)
DAY 14 FEB EARTHQUAKES. - Yellow (10)
DAY 13 FEB EARTHQUAKES. - Light green (10)
DAY 12 FEB EARTHQUAKES. - Dark Blue (10)
DAY 11 FEB EARTHQUAKES. - Rosa (5)

The seismicity map of útlimos 6 days, today, as yesterday, are the Mar de las Calmas and one near the eruption of La Restinga. Those of yesterday were in the Mar de las Calmas in the Julan in the area of peaks and in the Golfo area. Yesterday was the seismicity Nearby, including some more towards the area of peaks and Frontera. Highlight the 19.9km earthquake ... in an area where there has been little seismicity and the red is more to the SW. Like earthquakes and the day before yesterday. The diameter 13 in the afternoon activity was concentrated in the Mar de las Calmas and Julan mainly, but there was one morning in the Golfo area. Highlight a deep earthquake on 12 in the area of the tip of Arenas Blancas Sabinosa at 23.2km and the seismicity is located on the night and morning in the Golfo and in the afternoon at Sea de las Calmas. Del Golfo activity lined up mainly in NS. (Enrique).

1126641 15/02/2012 05:45:47 27.6708 -18.1191 10.6 1.5 mbLg W EL PINAR.IHI
1126651 15/02/2012 06:28:28 27.7081 -18.0531 12.3 0.8 mbLg W EL PINAR.IHI
1126653 15/02/2012 06:30:49 27.6994 -18.0814 10.1 0.9 mbLg W EL PINAR.IHI
1126662 15/02/2012 08:50:09 27.6627 -18.0746 10.3 1.1 mbLg SW EL PINAR.IHI 12230

1126682 15/02/2012 09:35:11 27.6208 -18.0882 10.5 1.4 mbLg SW EL PINAR.IHI
1126688 15/02/2012 09:35:33 27.6955 -18.0587 10.0 0.9 mbLg W EL PINAR.IHI
1126746 15/02/2012 11:03:09 27.6401 -18.0523 16.7 1.5 mbLg SW EL PINAR.IHI
1126809 15/02/2012 13:59:11 27.7101 -18.0090 17.3 0.9 mbLg W EL PINAR.IHI
1126818 15/02/2012 14:15:59 27.7389 -18.0289 8.1 0.8 mbLg SW FRONTERA.IHI

1126823 15/02/2012 14:31:39 27.7027 -18.0452 12.5 0.7 mbLg W EL PINAR.IHI
1126831 15/02/2012 16:05:34 27.7288 -18.0295 10.2 1.5 mbLg SW FRONTERA.IHI
1126832 15/02/2012 16:11:54 27.7461 -18.0346 10.1 0.7 mbLg SW FRONTERA.IHI
1126839 15/02/2012 16:12:39 27.6934 -18.0970 15.4 1.0 mbLg W EL PINAR.IHI
1126843 15/02/2012 17:10:54 27.6178 -18.1423 19.9 2.0 mbLg SW EL PINAR.IHI 12240

1126844 15/02/2012 17:23:08 27.6906 -18.0383 10.7 1.1 mbLg SW EL PINAR.IHI
1126848 15/02/2012 17:34:26 27.7132 -18.0328 11.4 1.4 mbLg W EL PINAR.IHI
1126849 15/02/2012 17:56:56 27.7396 -18.0791 11.5 1.0 mbLg W FRONTERA.IHI

1126861 16/02/2012 01:21:40 27.6734 -18.0648 10.3 1.7 mbLg SW EL PINAR.IHI
1126863 16/02/2012 02:58:52 27.6807 -18.0930 9.4 1.4 mbLg W EL PINAR.IHI

1126870 16/02/2012 03:36:29 27.7013 -18.0878 11.3 1.3 mbLg SW FRONTERA.IHI
1126872 16/02/2012 03:50:24 27.6764 -18.0633 11.7 1.4 mbLg SW EL PINAR.IHI
1126874 16/02/2012 03:57:00 27.6022 -18.0730 10.0 1.1 mbLg SW EL PINAR.IHI
1126884 16/02/2012 06:10:05 27.6814 -18.0752 6.7 1.8 mbLg SW EL PINAR.IHI
1126885 16/02/2012 06:29:56 27.6205 -18.0043 12.9 0.5 mbLg SW EL PINAR.IHI 12250

1126886 16/02/2012 07:07:48 27.6647 -18.0817 8.9 0.7 mbLg SW EL PINAR.IHI

quote:

NOTE AVCAN 452 - SEISMIC-VOLCANIC ACTIVITY - HIERRO ISLAND - FEBRUARY 17 2012-9:15 pm peninsular - seismic-volcanic activity remains moderate, with seismic activity today in the area of mountain peaks, Tanganasoga height towards the Julan and east coast Julan. Microseismicity is also detected but not located in the spectrogram. Continued volcanic tremor signal in the eruption of the Restinga, takes 5 days down without stopping, but rebounded somewhat yesterday, following the low and barely noticeable in the spectrogram. New earthquakes 26. Magnitude between 1.5 and 0.2. Depths between 7.1 and 12.3km (and one 2.7km and four at 15.2, 15.6, 15.9 and 16.0km). Yesterday 23. Yesterday 30. 5 are today. A total of 12,277 earthquakes are located in El Hierro by IGN from 9:00 am of July 19, 2011 (Enrique).

FEB. - Yellow (5)
DAY 16 FEB EARTHQUAKES. - Light Blue (30)
DAY 15 FEB EARTHQUAKES. - Red (23)

The seismicity is concentrated today in the area of peaks and Julan, while that of yesterday is well distributed throughout the area of seismic activity from the el Golfo area to the Mar de las Calmas and even on land (Enrique).

1126900 16/02/2012 08:12:11 27.7026 -18.0861 10.8 0.7 mbLg SW FRONTERA.IHI
1126902 16/02/2012 08:20:37 27.7061 -18.0796 11.2 1.2 mbLg SW FRONTERA.IHI
1126903 16/02/2012 08:43:49 27.7046 -18.0705 12.3 1.4 mbLg W EL PINAR.IHI
1126927 16/02/2012 11:11:47 27.6652 -18.0432 7.1 1.1 mbLg SW EL PINAR.IHI

1126941 16/02/2012 11:11:58 27.6777 -18.0307 7.3 1.2 mbLg SW EL PINAR.IHI
1126970 16/02/2012 12:14:23 27.6904 -18.0633 11.0 0.5 mbLg W EL PINAR.IHI
1127001 16/02/2012 12:52:17 27.6538 -18.0578 6.8 1.2 mbLg SW EL PINAR.IHI
1127007 16/02/2012 13:01:01 27.7537 -18.0696 15.2 1.5 mbLg W FRONTERA.IHI
1127009 16/02/2012 13:02:57 27.8471 -18.0506 2.7 0.9 mbLg NW FRONTERA.IHI 12260

1127011 16/02/2012 13:05:24 27.7174 -18.0488 11.6 0.8 mbLg SW FRONTERA.IHI
1127013 16/02/2012 13:18:43 27.7404 -18.0605 15.6 0.7 mbLg W FRONTERA.IHI
1127015 16/02/2012 14:36:59 27.7180 -18.0163 12.4 0.6 mbLg W EL PINAR.IHI
1127016 16/02/2012 15:15:21 27.7556 -18.0487 15.9 0.2 mbLg W FRONTERA.IHI
1127018 16/02/2012 15:38:42 27.7094 -18.0393 16.0 0.7 mbLg W EL PINAR.IHI

1127019 16/02/2012 15:42:03 27.7536 -18.0366 10.6 0.9 mbLg W FRONTERA.IHI
1127020 16/02/2012 16:54:16 27.6525 -17.9966 0.8 mbLg SW EL PINAR.IHI
1127021 16/02/2012 17:07:38 27.7119 -18.0802 11.8 1.0 mbLg SW FRONTERA.IHI
1127049 16/02/2012 18:07:05 27.7194 -18.0480 11.4 0.3 mbLg SW FRONTERA.IHI
1127047 16/02/2012 18:53:36 27.7232 -18.0603 8.0 0.9 mbLg SW FRONTERA.IHI 12270

1127048 16/02/2012 19:11:41 27.6774 -18.0502 9.7 0.7 mbLg SW EL PINAR.IHI
1127060 16/02/2012 20:19:23 27.7379 -18.0583 12.3 1.0 mbLg SW FRONTERA.IHI

1127071 17/02/2012 00:26:43 27.7276 -18.0525 10.1 1.3 mbLg SW FRONTERA.IHI
1127073 17/02/2012 01:28:20 27.6930 -18.0499 11.2 1.4 mbLg W EL PINAR.IHI
1127074 17/02/2012 02:10:44 27.6920 -18.0614 12.0 1.2 mbLg W EL PINAR.IHI

1127077 17/02/2012 05:38:49 27.7096 -18.0672 10.7 1.5 mbLg SW FRONTERA.IHI
1127078 17/02/2012 05:41:08 27.7213 -18.0653 11.7 0.7 mbLg SW FRONTERA.IHI

quote:

Javier's image of the moon's influence on the tremor can not be seen by the small font size. Americans are big supporters of the influence of gravitational tides in the volcanism generating heat as well as internal and apparently breaking efforts on the bark, the other theory, that of self-sustaining dynamo, was abandoned in the 60 after the Webber et al study that concluded it was not factible.Personalmente doubt a major influence of the gravitational pull on volcanism.
[bron]

quote:

Current Volcanic Islands (AVCAN) The truth is that this is scientifically proven in some volcanoes .. I leave the google translation arranged more or less of the item (Enrique):

Influence of fortnightly Earth tides at Kilauea Volcano, Hawaii

Daniel Dzurisin
U.S. Geological Survey, Hawaiian Volcano Observatory, Hawaii Volcanoes, National Park, Hawaii 96718

Analysis of 52 historic eruptions confirms the premise that fortnightly earth tides play a significant role in triggering activity at Kilauea Volcano, Hawaii. Since January 1832, nearly twice as many eruptions have occurred nearer fortnightly tidal maximum than tidal minimum (34 vs. 18). A straightforward significance test indicates that the likelihood of a fortnightly tidal influence on Kilauea eruptions is roughly 90%. This is not the case for Mauna Loa Volcano, where 37 historic eruptions have been distributed randomly with respect to the fortnightly tide. At Kilauea, stresses induced by fortnightly earth tides presumably act in concert with volcanic and tectonic stresses to trigger shallow magma movements along preexisting zones of weakness. Differences in structure or internal plumbing may limit the effectiveness of this mechanism at Mauna Loa. Tidal effects seem to be less marked at shields than at some islandarc volcanoes, possibly because higher average volcanic stress rates in Hawaii more often override the effects of tidal stresses.