El Hierro, Canary's - Red-Alert, Eruption Underway

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GCANE
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Re:

#81 Postby GCANE » Mon Oct 10, 2011 9:29 am

Nightwatch wrote:
What about other volcanoes there, all quiet?



Latest La Palma Deformation


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Re: El Hierro Volcano (Canary's) - Unconfirmed Eruption

#82 Postby GCANE » Mon Oct 10, 2011 9:35 am

A submarine volcanic eruption is taking place approximately 5 kilometres off the southern coast of El Hierro, the smallest of The Canary Islands. The Mayor of La Frontera (El Hierro), David Cabrera, confirmed in an interview on Radio iron Garoé that ‘underwater eruption’ is taking place about 900 metres beneath the sea surface five kilometres south of La Restinga. The eruption has been ongoing for four hours, the Mayor said. Spanish newspaper laopionion.es quoted the Minister of emergencies of the Cabildo of El Hierro, Maria of Carmen Morales, as saying the eruption is taking place because ‘the seismic movement of 4.3 occurred on Saturday afternoon caused a fissure, from where the energy is been released’. Scientists remain unclear if the emissions are gas or lava. A meeting of PEVOLCA - Actualidad Volcánica de Canarias, comprising representatives of Instituto Geografico Nacional (IGN) and The Canary Islands Government, is presently taking place on the Spanish Island. Meanwhile, La Agencia Estatal (CSIC) scientists equipped with special detection cameras have been making numerous sorties over coastal areas of El Hierro in an attempt to verify the existence and scale of the underwater eruption. If confirmed, this would be Spain’s first volcanic eruption since 1971 when the erupted of the Teneguía volcano on the island of La Palma (Canary Islands), located to the north of El Hierro. Initial reports of the eruption were received from crews on board four separate ships. On Monday afternoon, Terra Noticias/Agencia EFE reported that an eruption occurred 2000 metres below sea level in the Las Calmas sea at 10.43 local time (05:43 EDT). Spanish newspaper El Mundo placed the depth of the eruption at 13oo metres. Local media agency Canarias7 reported on Monday that Government authorities have suspended ferry activities to and from the 285 square-kilometre island. English language newspaper islandconnections.eu reported: “The martime chief for the province of Santa Cruz de Tenerife Antonio Padrón has issued a recomendation that boats should not sail closer than four miles off El Hierro. Divers have also been told to suspend all activities.”

http://hisz.rsoe.hu/alertmap/site/?page ... &uid=11531
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#83 Postby Nightwatch » Mon Oct 10, 2011 9:59 am

It's still not confirmed... 20.00 hrs local time new meeting.
Seems there is confusion about how stuff was said and understood.

Still possible it's not erupting.
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Re: El Hierro Volcano (Canary's) - Unconfirmed Eruption

#84 Postby GCANE » Mon Oct 10, 2011 10:03 am

IMPORTANT UPDATE 14:31 UTC : PEVOLCA has just published a Press Statement that it is still unsure that an eruption is going on in the Las Calmas Sea. Scientists of IGN which make part of the PEVOLCA committee have stated that IGN has recorded the emission of volcanic gases at the south side of the island. The committee stresses that the gases are NOT dangerous for the population.
Additionally IGN reported that the emission might also be an eruptive phase but at the present time there is no 100% proof for it. A certainty however, IGN reported, is that “purely volcanic harmonic tremors” have started.

At 7 PM (19:00) local time later today, a new report will be published with the latest results and conclusions of the scientists.


http://earthquake-report.com/2011/09/25 ... to-yellow/
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Re: El Hierro Volcano (Canary's) - Unconfirmed Eruption

#85 Postby GCANE » Mon Oct 10, 2011 12:49 pm

Tremor Amplitude Increasing



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Re: El Hierro Volcano (Canary's) - Unconfirmed Eruption

#86 Postby GCANE » Mon Oct 10, 2011 1:53 pm

Tremor Level Exponentially Increasing


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Re: El Hierro Volcano (Canary's) - Unconfirmed Eruption

#87 Postby expat2carib » Mon Oct 10, 2011 2:20 pm

Thanks GCANE for keeping us informed. What are the chances for a significant tsunami IF (note the big if) this eruption is/becomes more than foreseen ?
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Re: El Hierro Volcano (Canary's) - Unconfirmed Eruption

#88 Postby GCANE » Mon Oct 10, 2011 2:38 pm

expat2carib wrote:Thanks GCANE for keeping us informed. What are the chances for a significant tsunami IF (note the big if) this eruption is/becomes more than foreseen ?


Hard to say. Experts are saying this will not be an explosive eruption, most likely along the lines of a hawaii-type eruption.

However, that does not exclude a flank collapse. They have occurred on the island before with a 100-meter high tsunami.

I think the east coast would have about 8 hrs warning if one would occur.

Doesn't hurt to monitor the situation.

Here is the tsunami warning page.

http://ptwc.weather.gov/


El Hierro gases detected point to a possible five kilometers underwater eruption
The phenomenon has been detected at 1,000 meters in the sea
There is no risk to the public, but prohibit fishing in the epicenter
A canary volcanologist says "no confirmation" of the eruption

http://www.rtve.es/noticias/20111010/de ... 7326.shtml

Heard unconfirmed reports of a fish kill.
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Re: El Hierro Volcano (Canary's) - Unconfirmed Eruption

#89 Postby GCANE » Mon Oct 10, 2011 3:25 pm

@eruptionsblog reports about batches of dead fish appearing in Southern El Hierro. Waiting for confirmation. Tremor still strong

http://twitter.com/#!/teideano
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Re: El Hierro Volcano (Canary's) - Unconfirmed Eruption

#90 Postby GCANE » Mon Oct 10, 2011 7:27 pm

@eruptionsblog Submarine eruption [now official] based on ground deflation, reduced seismicity, tremor + dead fishes

http://twitter.com/#!/pabloj_gonzalez


Volcanologists have confirmed that this Monday morning has been a submarine volcanic eruption about 5 kilometers from the village of La Restinga, El Hierro in the municipality of El Pinar.


http://www.elmundo.es/elmundo/2011/10/1 ... 81564.html
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Re: El Hierro Volcano (Canary's) - Submarine Eruption

#91 Postby GCANE » Mon Oct 10, 2011 7:49 pm

Here is a good primer on spectral response of tremor signal vs eruption intensity.

Should help in the analysis in the upcoming days.


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Re: El Hierro Volcano (Canary's) - Submarine Eruption

#92 Postby GCANE » Tue Oct 11, 2011 4:10 am

Tremor amplitude has increased dramatically since yesterday at this time.


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Re: El Hierro (Canary's) - Submarine Eruption Underway

#93 Postby GCANE » Tue Oct 11, 2011 4:20 am

Subsea Volcanic Eruption Underway Near El Hierro (The Canary Islands)

A submarine volcanic eruption is taking place approximately 5 kilometers off the southern coast of El Hierro, the smallest of The Canary Islands.

The Mayor of La Frontera (El Hierro), David Cabrera, confirmed in an interview on Radio iron Garoé that ‘underwater eruption’ is taking place about 900 meters beneath the sea surface five kilometers south of La Restinga.

La Agencia Estatal (CSIC) scientists equipped with special detection cameras have been making numerous sorties over coastal areas of El Hierro in an attempt to verify the existence and scale of the underwater eruption.

http://www.irishweatheronline.com/news/ ... 41266.html
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Re: El Hierro (Canary's) - Submarine Eruption Underway

#94 Postby GCANE » Tue Oct 11, 2011 6:20 am

Wonder when they'll change the alert level?


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Re: El Hierro (Canary's) - Submarine Eruption Underway

#95 Postby GCANE » Tue Oct 11, 2011 6:41 am

Looks like the seismo has pegged out. :eek:


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Re: El Hierro (Canary's) - Submarine Eruption Underway

#96 Postby GCANE » Tue Oct 11, 2011 6:44 am

@eruptionsblog some reports of felt tremor by some....ok, really prelimianr and needs confirmation, but if felt, then we have a problem.

http://twitter.com/#!/teideano
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Re: El Hierro (Canary's) - Submarine Eruption Underway

#97 Postby GCANE » Tue Oct 11, 2011 6:50 am

GCANE wrote:@eruptionsblog some reports of felt tremor by some....ok, really prelimianr and needs confirmation, but if felt, then we have a problem.

http://twitter.com/#!/teideano



teideano

Hi guys, some reports are being released and need to be confirmed, but it seems some people is feeling the tremor. I repeat, needs confirmation, but something´s going wrong, as behind the tremor a big quake swarm can be deduced, the signal is clipping all the time and as remember from Mcnutt, sometimes tremor can be felt a couple of km away from the source.
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#98 Postby Nightwatch » Tue Oct 11, 2011 6:52 am

stupid question: what would be the problem? :oops:
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Re:

#99 Postby GCANE » Tue Oct 11, 2011 7:16 am

Nightwatch wrote:stupid question: what would be the problem? :oops:


A major eruption about to cut loose.
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Re: El Hierro (Canary's) - Submarine Eruption Underway

#100 Postby Tom8 » Tue Oct 11, 2011 7:21 am

GCANE wrote:it seems some people is feeling the tremor. I repeat, needs confirmation,.


the earth is vibrating constantly 11/10/2011 12:06:56

of course there is a constant vibration. 10/11/2011 12:28:40

http://www.diarioelhierro.es/t26496/pag ... f3=1&rf3=1
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