El Hierro

[fifi]

http://www.canarias7.es/articulo.cfm?Id=236422 (Translated)
The State Agency of meteorology (Aemet) activated at 8 p.m. today the yellow warning for coastal phenomena in the North and West coast of La Palma and the coast of La Gomera. He is expected to swell from the Northeast with waves which may exceed three meters in height. From five in the morning of Thursday and until midnight on Friday the Aemet increases the warning level by heavy swell at the Orange level on the coast of Fuerteventura, Lanzarote, El Hierro, on the North coast of Tenerife and Gran Canaria, and in the coastal North, East and South of La Palma.

Prediction points to waves of between four and five meters, in these areas, due to the swell of the Northeast. In the coast of La Gomera

and La Palma West will be in yellow notice by waves up to three meters in height. Looking ahead to the Friday, the notice will happen, from midnight on Friday until 00.00 hours on Saturday at the yellow level on the coast of Lanzarote, Fuerteventura, El Hierro, La Gomera and the northern coast of Tenerife and Gran Canaria.


                         .................

Q. What do the alert levels green, orange and red mean?

Based on the location, depth, and magnitude of the earthquake, the colour coded alerts are estimates for the severity of the message and are relative to the epicenter of the quake, and its specific location. Estimates for the severity of the message alerts are classified in three classes:

    Green: very low likelihood of humanitarian and property disaster if close to the location of the epicenter.
    Orange: potential humanitarian and/or property disaster if close to the location of the epicenter.
    Red: very high potential for humanitarian and property disaster if close to the location of the epicenter.http://www.tsunami-warn.com/faqs

[Magoo]

Officials in Fuerteventura were left red faced when the tsunami that was predicted to hit Corralejo earlier today, turned out to be a ferry load of Newcastle supporters who had been on a day trip to Lanzarote.

[fifi]

[]

       ........................

IGN list todays strongest earthquake as 4.3 in the Richter scale.http://www.ign.es/ign/layoutIn/volcaListadoTerremotos.do?zona=2&cantidad_dias=10

[jand]

Fifi

If the islands are going to be on alert from 2000 this evening and there has not been the main eruption yet then the scenario with the Tsunami warning if there is going to be a major eruption could be a reality and not to be scoffed at !!!!

[jand]

Una Canaria says:

 November 2, 2011 at 14:16


Now, I want told you a interesting fact that perhaps you don´t know. Professor Takeshi Sagiya assists in the ITER -Institue energy renowable technologies- with Professor Nemesio Pérez, geologist and canarian volcanologist. He has been studying the events in the island of Hierro since the beginning. It also he found
 the rhyolitic origin from piroclastics rock from La Restinga. But all his theories and warnings were ignored by the rest of volcanologists, especilly for Mr. Carracedo ( political reasons and others...). For that reason Nemesio Pérez uncheked but he is still continues his investigations in the bacground with professor Sagiya. That´s all.
 Now you know more about how works things here. Incredible, isn´t it?´
 I´m only hope that the responsables of the situation will be able to resolve it. And and soon as possilble.

[fifi]

Magoo was just joking jand.[] Im wondering if the waves will make the sea  polluted around the other Islands? The waves may not even have anything to do with the earthquakes in EL Hierro.

[jand]

Phew!

Looks like this could be weather related.

Current North Atlantic windspeeds and waveheights can be seen here:

http://www.stormsurf.com/page2/links/currnatl.html

As you will notice, there is increased waveheight approaching the Canaries, due to the large-area low pressure system currently centered ~750km WNW of Cadiz.

[fifi]

I wonder what the graphs on the link that you posted yesterday mean?http://www.floodwarn.co.uk/hierro_volcano.htm

[jand]

AFTER ANALYSIS BY THE UNIVERSITY OF BARCELONA The analysis of the pyroclastic''clear indications''brings a greater explosive potential A report by Professor of Petrology and Geochemistry, University of Barcelona, Sunday Gimeno Torrente, who has had access DAILY IRON concludes that the material analyzed,''does not present the characteristics of a surtseyao like rash, which is the stage repeatedly proposed by the scientific monitoring committee.'' Sergio Gutierrez, DiarioElHierro.es (2 / 11 / 2011) The pyroclastic found in waters of La Restinga provide "clear evidence" of a more explosive potential, "so far not mentioned publicly by anyone." This is to a report, which has had access DAILY IRON, prepared by Professor of Petrology and Geochemistry, University of Barcelona, Sunday Gimeno Torrente. The professor adds, furthermore, that this material "does not exhibit the characteristics of a surtseyano like rash, which is the stage repeatedly proposed by the scientific monitoring committee. " The study of the pyroclastic found during the submarine eruption of La Restinga, conducted by Dr. Gimeno at the request of the City of El Pinar, states that "inhomogeneous mixing of different magma compositions ('mingling') is a phenomenon widely reported in the literature as increasing the explosiveness of magma, and on many occasions, such as triggering an explosion." In his report, Gimeno pyroclastic Torrente argues that, "it can (and should) look in a matter of hours," and wonders why so many days later still not knowing what they are. "If they know they have not said, and have no evidence that anyone involved in his study rather have avoided, told DAILY IRON. According to this professor at the University of Barcelona, "it has underestimated the potential explosive" . "They have drawn all the time surtseyano volcanism hypothesis (all 4 phases), trivializing its potential explosiveness (10 hours of beautiful white column before anything happens), and before that an effusive volcanism hypothesis (lava, not explosive) deeper, and indeed since the surface began to appear in the pyroclastic should have understood that it was explosive submarine eruption and a different type, and if, moreover, implied magma mixing was potentially much more dangerous rhyolitic magma involved and if further, Gimeno said. pyroclastic ANALYSIS The report by Professor of Petrology and Geochemistry, University of Barcelona, Sunday Gimeno Torrente, that is collected, the sample is "that have shown Over the last few days in the media, which consists of two parts, a dark green or black preferably located in the outermost part of the body falls, massive-looking glass (sideromelana) but with macroscopic areas with vesicular texture and different fragments all white, very hard microvesicles, thus being very porous and very dense. " According Gimeno, "phenocrysts are not observed with the naked eye. The lines of contact between the two products are net and the first impression is that a product is black basalt and pumice differentiated product. " chemical analysis by Dr. Gimeno notes that, once classified by the IUGS TAS diagram , which is to use internationally accepted "that the product is black costata is a basic rock (basanite) and white a differentiated product (alkaline rhyolite)," he says. According to this professor, "collated with the internationally published databases The first product was already known in other samples from the island of El Hierro from previous eruptions, while the second is comparable but not identical, to what is known in other eruptions are less frequent in El Hierro (slightly richer in silica) ", contains the report seen by this newspaper. MICROSCOPIC CHARACTERIZATION The study allows to conclude that this pyroclastic magmatic fluid consists of two very different compositions and viscosities, coexisting as such without chemical mixture feasible at the time of the eruption. The basanite liquid appears as a porphyritic microvesicles with a low percentage of phenocrysts of mafic minerals, whereas the rhyolite is very hard microvesicles, with very thin walls of glass between the casts of gas bubbles are essentially constitute this portion rock and probably give global buoyancy. According to Dr. Gimeno, "to conclude this characterization must be added that it would be advisable to sample and systematic characterization of the pyroclastics that are being expelled by the volcano, as the compositional characteristics and the degree of crystallinity can vary during the eruption and the evolution of this condition, so this task is useful in the face of crisis management, "he advises. In addition, Professor Sunday Gimeno holds in his report that the chemism and determination of the degree of crystallinity of the rocks formed during an eruption, "as soon as possible should be done in the course of this, as both factors definitely affect the explosive and therefore the associated volcanic hazard. This truism, he adds, is widely recognized internationally, both for the expert scientific community by agencies such as the IAVCEI "he says. According Gimeno, many of the Spanish public universities and the CSIC have different equipment and technical staff qualified perfectly capable of doing the same work we've done in the UB in times comparable (within 24 h of receipt of the sample) and, frankly, can not understand how this characterization was not carried out since the first moment part or behalf of the commission of scientific monitoring of the eruption, "says the professor.
 [link to foro.tiempo.com]

[jand]

Jón Frímann says:
November 2, 2011 at 14:36

If there is magma mixing taking place in El Hierro it is because of old magma from earlier eruptions that is getting mixed with a new hotter magma. It is the same thing that did happen in Eyjafjallajökull volcano last year, and in other volcanoes that do the same. This is always a risk with volcanoes that only have eruptions every several thousands of years or more.

Since it takes the magma no less then that to cool down and crystallize like that to become rrhyolite. But the changes happen when the magma melts rock from its surroundings bedrock.

If this is the case with El Hierro this eruption got a lot more complex and dangerous to the people who live on the El Hierro Island.

[fifi]

I think I understand what he means in your last post. I was reading that the type of eruption depends on what is in the magma, if there are a lot of crystals in it it will be more explosive than if it is more fluid. The temperature also affects the type of eruption, a lower temperature magma cant flow as easily so it erupts more violently.

[jand]

La señales del tremor están muy inestables y dando explosiones que parecen sismos pero que no lo son, son explosiones cada vez mas fuertes, lo que indica que la boca eruptiva en el Sur en la Restinga o bien en el Norte en la zona del Golfo debe ese activa e interaccionando con el agua..(Enrique)

Translated


The signals of the tremor are very unstable and giving explosions that seem earthquakes but that they are not it, they are more and more strong explosions, which indicates that the eruptive mouth in the South in the Restinga or in the North in the zone of the Gulf must that active one and interacting with the water. (Enrique

http://www.01.ign.es/ign/resou#8203;rces/volcanologia/CHIE/imagene#8203;s_sismica/HORA_SP/CHIE_2011-11#8203;-02_14-15_

[jand]

Sergio, Rosa, Carmen, is at 15: 18... and there is no earthquake registered in ign, what noses is that? can some expert explain?
2 minutes ago · Like · 1 · Origina


Danyssel Gador Enough us data, and missing more documents live does not help to better understand the situation... images videos and people who cover and report on what we are living...
about a minute ago · Like · Original.



Simón de la Rosa The tremor has gone mad?
a few seconds ago · Like · Original.

[fifi]

Another large earthquake at 18.10 measuring  4.4 on the Richter scale 22.9km deep. 89 earthquakes so far today.http://www.avcan.org/?m=Animacion

Tweets

PrensaElHierro Cabildo de El Hierro
It was possible to distinguish three different emission zones in addition to the initial one. Not appreciating the green emission zone around.
2 hours ago

PrensaElHierro Cabildo de El Hierro
IGN corrects the earthquake of magnitude 4.3 7:54 hours and intensity IV.
5 hours ago (They had previously listed this mornings earthquake as being 4)

Strangely enough according to Earthquake report this evenings large earthquake had also been revised.  "Update 02/11 – 18:45 UTC :
A strong earthquake with a magnitude of  3.8 4.4 (after revision) occurred at 18:10 UTC at a depth of 23 km.  Epicenter was in the El Golfo bay. It was felt by the islanders."
              ...................




Explosive magma.... http://www.abc.es/20111102/sociedad/abci-explosion-volcanica-hierro-201111021751.html

http://www.canarias7.es/articulo.cfm?id=236498
                     ................





Unexplainable bulge in tremor charts.

[jand]

This has beeen copied from a German Website

Hierro volcano - IGN corrected quake at 4,3 RSk.
The earthquake today morning at 7.54 am was yet to quite a bit stronger than the first reported 4.0 RSk. The IGN now corrected the value on 4.3 Richter scale upwards. The difference sounds little, but a quake of 4.0 is 10 x stronger than a tremor of 3.0 RSk. Nothing was known about damage so far.
Meanwhile, an another tremor with 3.3 RSk. has occurred at 12.44 am in 21. Also flatter Quake 9 km deep are recorded.
Whoever talks now of floret Idyll fails to recognize the actual situation. These are facts and not conjecture. I recall my statement of yesterday (4.0 - 4,2RSk.)


The tremor is running without large slowdown continue its zickigen course. New eruption cookers have not been reported yet so far



The result of the magma or lava investigation of the eruption of the South became known. Then has a far greater explosive potential pyroclastic magma as known or suspected. Prof. Domingo Gimeno Torrente of the geochemical Institute in Barcelona is of the opinion that it is not with the "type: Surtseyano" is the same as.


The inhomogeneous mixture consists of different composition and is very porous.
He does not understand why only so much time must elapse until a sample at his lands. Many other Spanish Institute had can perform long ago within 24 hours from the investigation and would have come to the same conclusion. Here those who report (Spanish) would like to read.


The shelters take not 4000 evacuees but only 2500 people. The military is 2000 and the Red Cross provides 500 seats. Where the tent city is erected, can be decided only in the short term according to the crisis. The eastern part of the island is considered as the safest site.


Yesterday requests from El Hierro have reached me with the request in the blog to ask for the following:



HELP - CALL


Who is able and is ready to include people with him in a possible evacuation on El Hierro and to offer an accommodation for a period of time.
I want to use the address to have particularly readers who live in the Canary Islands or a house or an other accommodation on the Islands.


I think out of solidarity, we must help the Herrenos in this exceptional situation and also to show our commitment not only by words but by deeds. It would certainly not just a nice gesture.


If you would like to help send me please EMail to: Lapalma1@web.de
Please specify the address - phone number and the possible number of people who can be accommodated.


I will collect the addresses and further lead to the Red Cross or the disaster bar of El Hierro. I thank you for your help today and will of course report on the response.
Translate webpage http://elhierro1.blogspot.com/2011/11/el-hierro-vulkan-ign-korrigiert-beben.html  Clear All    Rate this translation:
Thank you for your feedback.



MORE FROM MICROSOFT TRANSLATOR ®

[jand]

Harmonic Tremors are really getting strong

http://www.01.ign.es/ign/head/volcaSenalesAnterioresDia.do?nombreFichero=CHIE_2011-11-03&estacion=CHIE&Anio=2011&Mes=11&Dia=03

[jand]

Brought forward since it got burred on the previous page of this thread in about an hour.

====

Rotating animated plot of one day uplift rate from the Nagoya network as of 1 Nov 2011. A couple of the stations had stale data and were not used.

http://www.youtube.com/watch?v=W6qUXEF0ZCk

Reply


Lurking says:

 November 3, 2011 at 06:28


Ya know... with the fact that they are now hiding their "transparency" behind passwords... playing the fiefdom game... and the the apparent "chugging" that is going on in the CHIE spectrograph...

I think somebody is seriously horked and they are just now beginning to realize it.

I sincerely hope that I'm wrong.

Reply


Lurking says:

 November 3, 2011 at 06:36


A note of explanation since my colloquialism may be lost on some people.

"Chugging" comes from being around steam systems. When the high pressure vapor flow encounters an obstruction... usually an accumulation of fluid or such, the pressure builds until it forces the obstruction out of the way.

Old steam locomotives made this sound as the steam drove the piston back and forth. Hence the term "chug."

If you will take a gander at the spectrogram... you will note that it's starting to do periodic bursts in the low end spectrum. That's the chugging I am referring to.

It could be anything causing it. But it it's the magma momentarily increasing its viscosity ... either through chemical changes in the gas make up or elongated bubbles in the magma...

... well, eventually it won't be able to simple force it's way past.

Things could get very dynamic very fast.

Reply

[jand]

Special seismic CRISIS - 3/11/2011 (07: 30 pm)

Scientists are not in agreement on the composition of the pyroclastic


A report from a professor at the University of Barcelona that pyroclastic found in waters of La Restinga after the eruption, "provide one greater explosivity data", while the CSIC scientists taking part in the Pevolca say that these traquitas "volumétricamente are not significant and constitute more a story that the main feature of the eruption".
For some the composition is baslato and trachyte while that for others is basanite and rhyolite.

SERGIO GUTIÉRREZ, Valverde (3, 11, 2011 07: 30 hours)
Accustomed to the contradictory versions that happen on certain occasions (not in all) to which we are accustomed since the start of the sísmico-volcánica crisis, this kind of "war" has now been scientists. And, as it could not be otherwise, each who handles a different report on the composition of the pyroclastic found in waters of La Restinga.

Since that this crisis reached its greater degree of concern, we have attended confirmed the eruption in the morning, deny the afternoon and return to confirm for the night.

Told us one day that "there is no precursor signals that anticipate an imminent eruption at border" for the other day, did not rule out an eruption in the North of the island. They have closed us the tunnel before the risk of landslides by the earthquakes (is now open and we have already suffered two earthquakes of more than 4 degrees and innumerable ways by the population of 3 or more than 3 degrees of magnitude). And La Restinga is on red alert while its neighbours them shakes the House. In the Gulf (in yellow alert as the rest of the island), seismic activity increases while its inhabitants no longer know what to do and what is really happening. They arrive more effective army on the island and Red Cross are advised to be on alert and thus "ad infinitum".

If this were not enough, now the "war" seems to have been and it has been moved to the scientists. Yesterday morning newspaper EL HIERRO published a report by the Professor of Petrology and geochemistry at the University of Barcelona, Sunday Gimeno torrent, where, in the light of the analysis carried out, ensured the pyroclastic found in waters of La Restinga provide "clear signs of one greater explosive potential, not so far mentioned publicly by anyone".

The Professor added in his report that this material "has not presented the characteristics of a rash of type surtseyano, which is the stage repeatedly proposed by the Scientific Committee to follow up".

Among other things, this Professor of the University of Barcelona, complained that "it has underestimated the explosive". "They have mapped out all the time a hypothesis of volcanism surtseyano (4 stages), trivialize his possible explosivity (10 hours of white column very nice as you pass anything), and before that a hypothesis of effusive volcanism (lávico, not explosive) to more depth, and indeed since that began to appear on surface the pyroclastic should have understood that the underwater eruption was explosive and a different type and that if"", moreover, implied mixture of magmas was potentially much more dangerous, and if implied magma riolítico even more", says Gimeno.

After the publication of this report, it took only a few hours so that the Pevolca disseminated a press release saying the opposite to Professor Gimeno. According to scientists from the CSIC that form part of the Scientific Committee of the Plan of Civil protection by volcanic risk (Pevolca), against the report drawn up by the Professor of Petrology and geochemistry at the University of Barcelona, Sunday Gimeno torrent (made public by newspaper EL HIERRO), CSIC scientists maintain the fragments consist of a mixture between two magmatic materialsone black (basalt) and another white (trachyte), which occurred at the time of the eruption by what is a physical between two materials mixture without chemical reaction there between the two.

According to scientists, these traquitas "are volumétricamente little significant and more an anecdote that the main feature of the eruption". "In reality, the samples that have been collecting these days, the trachyte was only present in the early episodes, and at a rate of 1 to 10 on the basalt, what makes you not involved in determining the type of resulting eruption".

I.e. on the one hand ensures us that the fragments are themselves one greater explosivity and, on the other, ensures us that "they constitute an anecdote". Or more of the same. Yes, but not. Perhaps, perhaps. Rash or not can be, it may be explosive or perhaps not....

 The truth is that, regardless of the reports that handles a few scientists or others, nothing more out the news daily EL HIERRO the results of the analyses made by the CSIC pyroclastic seems to have precipitated and what not said in weeks, has come to light in just a few hours.

THE REPLICA OF THE PROFESSOR GIMENO TORRENT

For his part, Professor Professor of Petrology and geochemistry at the University of Barcelona, Sunday Gimeno Torrente, following the reply of the Government, told daily EL HIERRO that "as a scientist I am pleased that after more than 2 weeks of eruption, and casual temporary coinciding with the appearance of my report (sent on Wednesday to Juan Santana of the Pevolca)"(,_día_2_de_noviembre_a_las_10.20_horas,_por_correo_electrónico), we have finally news of chemical analyses of the rock, which should and can do in a few hours after the start of an eruption ".

Gimeno torrent added that "I am pleased also that it interpreted them curious and similarly as did I (mixture of magmas in a very superficial position), although it is a certainly late and contradictory way regarding how much had said until now (purely basaltic eruption) despite them being unique in having at its disposal information and samples from the first moment"said.

According to this Professor (reaffirmed in his report), "and regards to my basanite is a basalt and rhyolite my a trachyte, can correspond to different compositions in different moments of sampling, or analytic differences interlaboratorio." "In this regard the laboratory of the University of Barcelona works with quality control and standards, and when we have numerical data real scientists responsible for the follow-up of the eruption we will conduct an assessment and comparison exercise, he clarified.


































©

[kevin2003]

[fifi]

Spam ? Who? Us?   Never.[][][][]
.............................
Bubbling begins again in La Restinga http://www.canarias7.es/articulo.cfm?Id=236636

Photos of emission points. (Unconfirmed although mentioned by the Cabildo in their tweet last night) http://www.canarias7.com/multimedia/galeria.cfm?id=6829

[jand]

Very important Update 03/11 – 12:13 UTC :
 Jill, one of our many readers just attracted our attention to an article in the Canarias7.es. Canaria7. es wrote shortly ago that the burbuja or jacuzzi, as the islanders call the eruption spot, has been active for a while. A scientist has been flying to the spot by helicopter and the burbaja was well seen from Arena Blanca, a viewing point in between El Pinar and La Restinga. Canaries7 says also reports that Juan Manuel Santana denied an evacuation order at this moment.

Very important Update 03/11 – 12:02 UTC :
 Joke has just called her friend at La Restinga. A lot of movements are going on + the burbuja (Jacuzzi) seems to be back again (not confirmed message in DiarioElHierro). Jokes friend is packing her luggage, she said.  But at the moment we do not know whether it is her own decision or a mandatory evacuation.
 The information we are getting is conflictual (facts combined with apparently rumors). The question mark in the title is very important.
 We expect a message from Pevolca with their current estimate of what exactly is going on soon. Joke is questioning a lot of people in El Pinar and has called some people

Update 03/11 – 11:23 UTC :
 PEVOLCA reported that they are currently screening all available data and that they will call for additional measures if they feel it appropriate to do so.  They also reported that the people of La Restinga have felt multiple tremors

Important update 03/11 – 10:34 UTC :
 A new event is in the making or did happen a while ago. Both harmonic tremor and frequency have changed. We reckon that scientists will explain their opinion later on.  The current harmonic tremor graph is at max. (flat horizontal lines).
 The number of earthquakes is considerably less than during the same period yesterday.

[jand]

http://www.01.ign.es/ign/head/volcaSenalesAnterioresDia.do?nombreFichero=CHIE_2011-11-03&estacion=CHIE&Anio=2011&Mes=11&Dia=03

[fifi]

Cabildo de El Hierro
PrensaElHierro Cabildo de El Hierro
It has been revival of the phenomenon in the South and scientists study it.
9 minutes ago


Cabildo de El Hierro
PrensaElHierro Cabildo de El Hierro
Maria del Carmen Morales reassured the population of # ElHierro not planned any evacuations at this time.
10 minutes ago


Residents have begun to leave their houses even though they have not been told to evacuate. They say they know it is not safe to stay and are not willing to wait for more meetings to evaluate the situation.





The latest photos taken from the air of the new emission points in La Restinga

Indonesian news discussing EL Hierros tremors http://internasional.kompas.com/read/2011/11/02/18320937/Giliran.El.Hierro.Terlanda.Gempa

[jand]

There has been a  recent earthquake today at 12.44 2.4 mblg on the west coast of Fuerteventura in the Atlantic Ocean .

Fifi sorry I dont know how to show the map please will you load the map.

[jand]

Sorry should have said on the above post its in the Atlantic Ocean on the western side of Fuerteventura but the position of the earthquake is actually nearer to Gran Canaria.

[fifi]

[fifi]

Tremors being picked up by Fuerteventuras station today.http://www.ign.es/ign/head/volcaSenalesAnterioresDia.do?nombreFichero=CHIE_2011-11-03&ver=s&estacion=CHIE&Anio=2011&Mes=11&Dia=03&tipo=1

[jand]

Thanks Fifi.

[fifi]

No problem.[]

[SurfJames]

Earthquake off Fuerteventura! They look like harmonic waves to me. Are we about to see another vent in the ocean between the 2 islands?