quote:The address PEVOLCA says there is no certainty of an underwater volcanic eruption on the island of El Hierro
10/10/2011 ... 14:06 - Ministry of Economy, Finance and Security
IGN has confirmed early this morning for a small release of fluids and volcanic gases that do not pose such risk to the population
The 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.
Dit schijnt inmiddels weer tegengesproken te zijnquote: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 eruption
The 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 Eiland
In 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)
Jéétjuh, wat is het heftig aan het worden...het is nu 20.00 geweest: ben benieuwd..ook of dit de trigger is voor meer!!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
Een landverschuiving en iedereen natte poten aan de oostkust van de VS.quote:Op maandag 10 oktober 2011 19:02 schreef Takkembah het volgende:
Dumdumdum
Ben zeer benieuwd naar het resultaat...
quote:The submarine volcanic eruption of El Hierro magma and gases released into the ocean
Scientists detect the phenomenon to three miles south of the island and 900 meters deep .- The population has not been affected but the marine fauna
Forty 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.
Is het nu wel of niet officieel bevestigd of neemt iedereen de "bevestiging" maar van elkaar over?quote:Dead Fish, eruption vent at 600m depth
Update 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).
Een 4.0+ misschien...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.
Hoe moet ik zo een grafiek lezen?quote:Op dinsdag 11 oktober 2011 12:28 schreef ZUID-OOST het volgende:
http://www.avcan.org/inde(...)ha=10-10-2011&tipo=1
http://www.avcan.org/inde(...)ha=11-10-2011&tipo=1
Het lijkt steeds heftiger te worden.
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