• Welcome to the oldest running Fuerteventura Forum.
 

El Hierro

Started by admin, October 12, 2011, 10:40:14 AM

Previous topic - Next topic
Print
Go Down Pages 1 ... 120 121 122 123 124 ... 236
User actions

jand

#3630
March 25, 2013, 05:46:16 AM
1200177 25/03/2013 05:00:20 27.7701 -18.2385 16 3.5 mbLg W FRONTERA.IHI

jand

#3631
March 25, 2013, 06:12:36 AM
Looks like another strong EQ,




Pues parece que esta animado

Seems that this lively (Translated by Bing)

16 minutes ago · Like..


Mariela Castañeda Armas 5;58

5 minutes ago · Like..


Elsa M Guadarrama 05:59

5 minutes ago via mobile · Like..



Raquel Armas Zamora 6: temblor muy fuerte en isora6:

very strong in isora shaking (Translated by Bing)

4 minutes ago via mobile · Like..


Alejandro Alejandro Alejandro Valverde 05:58

jand

#3632
March 25, 2013, 06:56:27 AM
There has been a 4.0 mg earthquake at 05;57

jand

#3634
March 25, 2013, 17:39:13 PM
Hi Fifi yes so much happening the enrgy release is unbelievable too much to report on everything this is the latest comment from Avcan and a little bit worrying.

010. SPECIAL NOTE PROCESS TRACKING VOLCANIC EARTHQUAKE ON THE ISLAND OF IRON. (25/03/2013 - 20: 00 h kuwait Canary 17:00 - UTC) The energy of the system rises too fast, faster, will not endure long at this rate. ... moves toward a point of no return in which you will have energy for a rash... already that the stretches of intrusion continues... trains seismic, and overlap with increasingly strong earthquakes of pressurization. The previous swarm is the previous step more or less through the Center and looks like now, he has released more than one-third of the sanjuanera... is that that was brutal... and more than half that the first swarm to the left. Certainly vista power, for longer and starts to send or we go to the situation where the swarm already has enough energy for an eruption, but there are more and is if continuing up more, in two days we have swarm as we haven't seen so far with largest magnitude earthquakes, as Fernando would say I don't like anything the gait of the dog, this is accelerating too quickly and the authorities still do not release, thing that already touches the recklessness, since with earthquakes of this magnitude very different to the rash of problems appear, and remember that several of the dead in the Islands previous eruptions were not by lava or ash and gases whether, but the earthquake that preceded it (Enrique from Kuwait) remember that in the moment in which we are, would that imagine that we are at the end of the pipe with magma that has been formed and that supports all active intrusion pressure and ongoing, someone has thought what if the pipe breaks at any point of their journey on the other hand?, and I would remind you that the magma comes from the center of the Gulf the coast forward up to go to the West... you remember, because all that I put in quarantine area... from los Llanillos, passing Sabinosa, white sands and until the Orchilla lighthouse with the area of peaks and part of the julan... almost anything... http://www.avcan.org/sismica/graficas/G2295.jpg?t=1364228681 I put as a reminder, since it is very important to report that the earthquakes have been felt in most 2.5, these IGN puts them in your list, in which facilitates filling the questionnaire: http://www.ign.es/ign/layoutIn/geofisicaCuesmaCuesmaTerremotos.do if still is not on the list, or it is noticing is not an earthquake, but vibrations, odours, deformations, behavior anomalous of animals, smoke, spots, noises or other things, then have to go and fill in the following questionnaire that has a text box at the end to put the sense ^ _-. http://www.02.ign.es/ign/layoutIn/geofisicaCuestionarioMacrosismico.do at 012 may report earthquakes or any anomalies observed by calling the number 012 (payment therefore is DIVERTED the call) or directly by calling the number which marks the 012 so we don't charge if we have national flat rate: 012 = 922 23 93 01. In an emergency call to 112.

jand

#3635
March 25, 2013, 17:41:59 PM
A recent comment from an Islander :

uffffffffffff a mi tampoco me gusta nada,y esta vibracion se siente fuertesita y la sensacion de estar en un barco,creo que deben dar una comunicacion las autoridades competentes para saber que debemos hacer y la forma correcta de actuar,no me gusta lo que estoy sintiendo

uffffffffffff to my not anything like me, and this vibration feels fuertesita and the feeling of being on a boat, I think that they should be a communication authorities to know that we have to do and the right way of acting, I don't like what I'm feeling

www.facebook.com/AVCAN

jand

#3637
March 25, 2013, 19:08:58 PM
The Association of geologists "does not rule out a new volcanic eruption" in El Hierro after the earthquake Monday

The Vice President of the Bar Association official of Geologists (ICOG), José Luis Barrera, has warned that "they are not disposable earthquakes of more intensity in the vicinity of iron" as well as "a new underwater eruption" after the registered on Monday in the Canary Island of 4.1 degrees on the Richter scale.

MADRID, 25 (EUROPA PRESS)

The Vice President of the Bar Association official of Geologists (ICOG), José Luis Barrera, has warned that "they are not disposable earthquakes of more intensity in the vicinity of iron" as well as "a new underwater eruption" after the registered on Monday in the Canary Island of 4.1 degrees on the Richter scale.

"Increased seismic activity on the island", where in the past three days more than 400 tremors have occurred "indicates that the magma under the crust is still active," according to José Luis Barrera. "Has been active since the mid-2011 and recurrent way press the surface", explained.

RISK MINIMUM FOR THE POPULATION

However, the ICOG underlined that the risk is minimal for the population of the island, although if the seismic activity in quantities exceeding 3.5 degrees it is recommended to "promptly" review any building if it has flaws.

After the underwater eruption in October 2011, in El Hierro volcanic activity has not stopped, according to the Association of geologists, and volcanic gases are issuing.

In addition, the hypocenters of earthquakes are rising. "At the moment they are between 13 and 17 kilometers depth, but if they rise to the surface it may be symptom of risk of eruption," said the Vice-President of the ICOG.

But in the event of a volcanic eruption, "the risk is minimal for the population because activity is recorded 10 or 13 kilometers from the coast of iron, about 1,000 meters of depth", according to estimates by the geologist.

Therefore, in opinion of José Luis Barrera no need "to alarm the population" because "there is no risk to worry about its integrity".

Considered just convenient "that will monitor the tunnel of the the Roquillos if there is any cracking or landslides in the mouths of input and output", as well as in the North of the island, in the area of La Frontera and Sabinosa, also because of the danger of landslides.

MEETING IN TENERIFE THIS TUESDAY

The Plan of Civil Protection (Pevolca) volcanic risk Scientific Committee will meet Tuesday morning in Tenerife to evaluate new seismic reactivation in El Hierro.

Speaking to Europa Press, sources of the General Directorate of security and emergencies of the Canarian Government explained that the meeting of the Committee will serve to make a scientific prognosis of this new turnaround, technical information that is then transferred to the Executive.

If this forecast so to take any action, the sources consulted have indicated that be convened a meeting of the Committee Director of the Pevolca to take them, although in principle "only is it going to see what is happening in the iron and which estimates there are".

According to data of the national geographical Institute (IGN), most of the tremors that are registering in El Hierro are located in the sea, to the West of the municipality of La Frontera.


http://ecodiario.eleconomista.es/sociedad/noticias/4701436/03/13/El-Colegio-de-Geologos-no-descarta-una-nueva-erupcion-volcanica-en-El-Hierro-tras-el-seismo-este-lunes.html

jand

#3638
March 25, 2013, 19:32:19 PM
Press Conference (Spanish)>

Rueda de prensa sobre seísmo en El Hierro

jand

#3639
March 25, 2013, 19:34:51 PM
VOLCANIC ISLAND OF IRON.
(25/03/2013 - 22:15 h kuwait 19:15 Canary - UTC)

I leave as it is evolving the swarm in the last hours, moving slightly to the South and as a story draws a puppet with two earthquakes of 4 on his chest... that things happen in nature!!...

As for what awaits us in the next few hours is more seismic activity, which will continue picking up and becoming of greater magnitude in as continue the intrusion of material on the Sill. Does an eruption in the short term, but if the system continues to evolve it is not discarded, still with the same probability when started on March 17, 2013, 10%, and if anyone thinks in more... still is too soon for that, so it will continue making noise and giving wiggles up to break the seal that holds it down there. Would a quiet suddenly not be good... indicate an earthquake rupture... and that's another story. ^_-
(Enrique from Kuwait)

http://www.avcan.org/?m=Mapas & a = map & mf = 5541

jand

#3640
March 25, 2013, 20:08:55 PM
So far today 171 earthquakes and still 4 hours to go.

jand

#3642
March 25, 2013, 22:06:57 PM Last Edit: March 25, 2013, 22:24:52 PM by jand
There has been a 3.8 mg earthquake.


SISMO 25/03/2013 20:55:13GMT lat=27.80 lon=-18.28 Depth=13km 3.8ML W FRONTERA.IHI CALCULO REVISADO


http://www.02.ign.es/ign/head/volcaSenalesDiasAnterioresCuasiRealHora.do?nombreFichero=cjul_2013-03-25_20-21&estacion=cjul&Anio=2013&Mes=03&Dia=25&tipo=1&hora=20-21&nav=%27cuasi%27

jand

#3645
March 26, 2013, 03:42:45 AM
Since the beginning of this last episode, so far, of the El Hierro sismovolcanica crisis, it has been saying, direct or indirectly, by some people that the islanders should not worry about these earthquakes since they are taking place at sea, not taking place on the island, but away from the coast. This video installation we want some partners of AVCAN remove this serious mistake, serious because that vision of what is happening can leave us unarmed to the possible risks that could occur.
Most, not to say the entire 17266 earthquakes recorded by IGN since the beginning of this crisis have been inside the building on the island of El Hierro. It has to be taken into account that the island, like all the Canary Islands, is not only what we see above the surface of the sea; There is a part of the building of the island that this emerged but there is another part which is submerged, which is underwater. It is often said by geologists that we only see 10% of the El Hierro building built by the eruptions, which the rest is hidden under the sea; If the island is born with around 3000m of depth and has its maximum altitude in Malpaso 1501, he has actually and approximately 4501 metres in height; to support this point the island spans the bottom of the sea much more than what we see on the surface. On the different maps that will see in the video will appreciate as the island extends below the surface of the sea, as the isobaths are marked by the steep drop as contour maps of surface do and how is pointing out the shape of the underwater island. All these maps, one per day from 17/03 to 25/03, daily earthquakes are marked to check how occur within the island building. Now at last, obtained from a publication indicated on it, you can see clearly as the eruption of La Restinga and these earthquakes have occurred within the building of the iron.
The first maps that highlight the isobaths marking as the low Island to the bottom of the ocean are part of a new tool that is available to members in www.avcan.org and is built by our technicians in Informatics from the Grafcan Viewer on the images and bathymetry of the IEO in Canary

http://visor.grafcan.es/visorweb/default.php?svc=svcEspNat & lat = 28.3 & lng =-15.8 & zoom = 8 & lang = is

jand

#3647
March 26, 2013, 17:40:11 PM
014. SPECIAL NOTE PROCESS TRACKING VOLCANIC EARTHQUAKE ON THE ISLAND OF IRON. (26/03/2013 - 18 h 15:45 Canary kuwait - UTC) The PEVOLCA has decided to follow in green traffic light early warning and that despite having two apparent anomalies (seismicity and deformation) and appearance of CO2, although still not in abnormal quantities. In the updated map of the seismicity of today looks perfectly formed by violet swarm central ball and that is due to the own intrusion of magma with stronger earthquakes. What is new today is that they have located more fewer earthquakes than is located around the main swarm releasing tensions in a radial system of fractures, are that it is a map of book, which is not always seen (Enrique from Kuwait) http://www.avcan.org/?m=Mapas&a=mapa&mf=5566 and the map only until 12:00 o'clock where becomes more patent this phenomenon of seismicity radial... ^ _-http://www.avcan.org/?m=Mapas&a=mapa&mf=5566 to wear as a reminder, since it is very important to report that the earthquakes have been of more 2.5, these IGN puts them in your list, where is provided to fill in the questionnaire: http://www.ign.es/ign/layoutIn/geofisicaCuesmaCuesmaTerremotos.do if still is not on the list, or it is noticing is not an earthquake, but vibrations, odours, deformations, behavior anomalous of animals, smoke, spots, noises or other things, then have to go and fill in the following questionnaire that has a text box at the end to put the sense ^ _-. http://www.02.ign.es/ign/layoutIn/geofisicaCuestionarioMacrosismico.do at 012 may report earthquakes or any anomalies observed by calling the number 012 (payment therefore is DIVERTED the call) or directly by calling the number which marks the 012 so we don't charge if we have national flat rate: 012 = 922 23 93 01. In an emergency call to 112

www.facebook.com/AVCAN

jand

#3650
March 26, 2013, 17:46:34 PM


Santa Cruz de Tenerife, 26 mar (EFE).-the scientists see a 75 percent chance of causing an earthquake of magnitude 4.3 within seismic intensification which is recorded in the iron from 18 March, but ruled out any risk for the population because the phenomenon is located 10 kilometres from the coast.

Thus has ensured it today María José Blanco, scientific spokesman of the Special Plan of Civil protection and emergency response by volcanic risk (Pevolca), that today has met in Santa Cruz de Tenerife to assess the situation after the increase of earthquakes on the aforementioned Canary Island, that they exceed the 1.120.

In this regard, the director general of security and emergencies of the Government of the Canary Islands, Juan Manuel Santana, has stressed that there is no risk to the population because the seismicity occurs 10 kilometers to the West of the island and there is no forecast of any kind of imminent eruptive phenomenon, but occurs in the same situation "even we would note".

María José Blanco, who is the Director of the national geographical Institute (IGN) in the Canary Islands, has pointed out that the scientific data on 18 March began a new earthquake-volcanic crisis in the iron within the magmatic process which began in July and which has recorded different periods of intensification once he gave ended on March 5 last year.

This crisis is the first for 2013 and seismicity is concentrated mainly in the West of the Gulf area, in the sea, at a distance of about 10 kilometers from the coast and with a stable depth of between 14 and 18 kilometers.

The earthquake of magnitude between registered thousand so far reached a magnitude of 4.1 on the Richter scale yesterday at noon and, as explained María José Blanco, unique prognosis of the situation that cannot currently be is that there is a 25 percent probability of occurring a 4.6 degree earthquake, and 75 percent of which reach the 4.3.

In terms of terrain deformation, deformation in the East-West component, with an increase of the coordinate in the direction this and a movement of ascent in the vertical component are detected at all stations of the GPS of the IGN network.

Global cumulative deformation during this period reaches a magnitude of 9.5 centimetres and María José Blanco recalled that in the revival of this seismic process registered in June of 2012 was reached 10 centimeters.

The cause of this deformation is located south of the seismicity, in the area of Orchilla.

Also have been detected anomalous values of carbon dioxide in this area and on the track of Mincafete, although they are not very high, added the spokesman.

http://www.diariovasco.com/agencias/20130326/mas-actualidad/sociedad/cientificos-posible-seismo-hierro-riesgo_201303261529.html

jand

#3651
March 26, 2013, 19:28:05 PM
Joke Volta has just posted this.

a las 19.16 hora local, vibraciones en ventanas en mocanal.después varios más lijeras..he rellenado el cuestionario...

to the 19.16 local time, vibration in Windows in mocanal.despues several more light...I have filled out the questionnaire...

www.facebook.com AVCAN

jand

#3653
March 26, 2013, 20:05:29 PM
2013-03-26 19:45 UTC
Herreños continue feeling some of the earthquakes, Joke felt the 18:16 Magnitude 3.3 earthquake as the windows vibrated.
More islanders described feelings of constant vibrations for a few seconds in intervals lasting for some minutes. There might not be M4 earthquakes, but there are many earthquakes shaking the island today.
- 170 earthquakes listed by IGN so far today
- After yesterday, it almost looks like the activity is over, but the contrary is the case. Below a small group of the last earthquakes who are all above M2. The M3.3 earthquake was also felt on the island
- As the seismic action is occurring approx. 10 km out in the Ocean, the earthquakes are less visualized on the map below.
- Hypocenters are varying a lot today
- The strongest earthquakes are also visible on the seismograms from La Palma and La Gomera

www.earthquake-report.com

jand

#3654
March 26, 2013, 20:14:50 PM
Over the last few weeks, there's been a sharp increase in earthquakes under El Hierro in the Canary Islands. Now, the western part of the volcanic island has risen by 10 centimeters. Wired Science blogger Erik Klemetti explains what this means.

http://www.wired.com/wiredscience/2013/03/earthquakes-inflation-suggest-new-magma-intruding-under-el-hierro/

jand

#3655
March 27, 2013, 11:32:02 AM
Excelllent video showing El Hierro.

Bañarse en El Hierro, la isla de los 1.000 volcanes

jand

#3656
March 27, 2013, 12:20:10 PM Last Edit: March 27, 2013, 12:22:49 PM by jand
Bathymetry of the El Hierro underwater volcano generated in March 2013 during the Vulcano0313 campaign, promoted by the Spanish Institute of Oceanography.

Batimetría Volcán submarino El Hierro

jand

#3659
March 27, 2013, 13:37:43 PM
There is talk the EQ at 11:08 was a LP EQ.

..Earthquakes related to volcanic activity may produce hazards which include ground cracks, ground deformation, and damage to manmade structures. There are two general categories of earthquakes that can occur at a volcano: volcano-tectonic earthquakes and long period earthquakes.

Earthquakes produced by stress changes in solid rock due to the injection or withdrawal of magma (molton rock) are called volcano-tectonic earthquakes (Chouet, 1993). These earthquakes can cause land to subside and can produce large ground cracks. These earthquakes can occur as rock is moving to fill in spaces where magma is no longer present. Volcano-tectonic earthquakes don't indicate that the volcano will be erupting but can occur at anytime.

The second category of volcanic earthquakes are long period earthquakes which are produced by the injection of magma into surrounding rock. These earthquakes are a result of pressure changes during the unsteady transport of the magma. When magma injection is sustained a lot of earthquakes are produced (Chouet, 1993). This type of activity indicates that a volcano is about to erupt. Scientists use seismographs to record the signal from these earthquakes. This signal is known as volcanic tremor.

People living near an erupting volcano are very aware of volcanic earthquakes. Their houses will shake and windows rattle from the numerous earthquakes that occur each day before and during a volcanic eruption. Residents in Pompeii felt earthquakes daily before Vesuvius erupted in A.D. 79 but continued to go about their daily routines (Francis, 1993). When Mount Pinatubo in the Philipines erupted in 1991, nerves were rattled as much as windows by volcanic earthquakes.

Earthquakes exhibiting volcanic tremor warn of an impending eruption so that people can be evacuated to areas of safety. The volcanic tremor signal has been used successfully to predict the 1980 eruptions Mount St. Helens and the 1991 eruption of Pinatubo. Volcano-tectonic earthquakes can cause damage to manmade structures and landsliding. To prevent damage from being done, structures should be built according to earthquake standards, building foundations should be constructed on firm ground and not unconsolidated material which may amplify earthquake intensity, and buildings should be constructed on stable slopes in areas of low hazard potential. .

http://www.geo.mtu.edu/volcanoes/hazards/primer/eq.html
Print
Go Up Pages 1 ... 120 121 122 123 124 ... 236
User actions