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El Hierro

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

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jand

In the past 24 hours, we had 6 quakes . The majority of them under the southern part of the island on the steep slopes to the Mar de las Calmas in 15 to 23 km depth (red dots). This morning at 5.31 clock the first time a quake in the Gulf off the coast of Sabinosa. A tremor of ML1, 7 km in 12 depth (pink). After it in the last few months south of the Canaries to the Cape Verde Islands quake now increasingly came to the area is about 1200 km to the north, on the southwestern tip of Portugal center of a quake surge. The sea area around Cabo de San Vicente near the southern Algarve is experiencing a series of earthquakes.


Yesterday at 11:13 clock one ML5, 0 quake depth of 30 km. For a long time from there is an active activity as the ML6, 1 quake on 15/09/2009 (left graph). Back then there were damages and casualties to Beja and Seville in southern Spain. Even the great earthquake of 1st November 1755 at the Lisbon was completely destroyed and nearly 100,000 people lost their lives, had its epicenter at Capo de San Vicente. Read at Wikipedia .

Posted by Manfred Betzwieser  to09:56  Comments: 

http://elhierro1.blogspot.de/

jand

OT but still interesting from 2007.

,,The earthquake that was felt in Andalusia, greatest earthquake since 1969

■The earthquake that occurred today at 11: 35, time, southwest of Cape St. Vincent (Portugal) damage has not occurred.
■It will not cause a tsunami despite its power
■It is the strongest second who sits on Spain since 1969.
ECO ®

EFE. 12.02.2007-14.15 h

The epicentre of the earthquake, told Efe the head of the Department of Geophysics of the National Geographic Institute (IGN), statements José Manuel Martínez, has been in the sea, 500 kilometres from Cadiz, opposite the southwest corner of the peninsula, 200 miles from the Cape St. Vincent, where the Azores-Gibraltar fault.

In the earthquake of 1969, there were 4 deaths by heart attack
East earthquake, whose magnitude was evaluated in the first few minutes in 6.3 and subsequent measurements have resituado 6.1, has been in the same place as the 1969, although on that occasion he was 7.3 and felt in all Spain, causing, as recalled Martinez, 4 who have died of heart attacks.

On this occasion, the earthquake, whose final coordinates are 36.09 degrees North and 10.26 degrees West, has been felt at intensity IV in the Mercalli intensity scale, in the provinces of Seville, Cádiz and Huelva, but also in Fuengirola (Málaga), Malaga, Jaen and Cordoba, and in high buildings in Madrid.

The telluric movement, which according to reports available in the IGN, there in Spain damage, will not cause a tsunami - tsunami - because to give it I had to have occurred in a vertical fault and this has emerged in a "reverse but not vertical" failure.

It is possible that the tide of Tarifa and Cadiz recorded "some movement", but Martínez recalled that in 1969, being of greater magnitude, produced a wave of half a meter.

MARTINEZ said that before an earthquake do go out to get away from the buildings, but in case of not being able to do is must find a stable place, under a table, a bed or the lintel of a door, never use the elevator, or light a match or the light.

Andalusia 112 emergency service attended 400 phone calls in the first hour after the earthquake, and in the provinces of Seville, Cadiz and Huelva were the preventive evacuation of some buildings.

This degree of intensity is comparable to the vibration produced by the passage of a truck heavy with burden, producing vibrations in tableware, Windows and doors, so it is also perceived by people in the interior of the buildings and by some on the outside.,,

http://www.20minutos.es/noticia/201089/0/replicas/terremoto/sevilla/


jand

#3362
The above post has been probably brought to light because of the recent activity near the Azores.

1170561 16/10/2012 21:53:38 37.2096 -12.6957 -.- 3.7 3 AZORES-CABO DE SAN VICENTE
1170562 16/10/2012 22:04:07 37.2016 -12.6341 -.- 3.8 3 AZORES-CABO DE SAN VICENTE
1170569 17/10/2012 02:07:20 37.2014 -12.6817 -.- 4.4 3 AZORES-CABO DE SAN VICENTE
1170653 17/10/2012 08:04:32 37.1472 -12.9713 30 4.2 3 AZORES-CABO DE SAN VICENTE
1170662 17/10/2012 09:04:02 37.2345 -12.7196 -.- 4.0 3 AZORES-CABO DE SAN VICENTE
1170688 17/10/2012 09:41:41 37.0935 -12.7098 -.- 3.7 3 AZORES-CABO DE SAN VICENTE
1170720 17/10/2012 16:37:02 36.9253 -12.8693 -.- 3.9 3 AZORES-CABO DE SAN VICENTE
1170721 17/10/2012 17:58:13 33.9178 -6.9600 22.0 3.8 3 SW TEMARA.MAC
1170722 17/10/2012 18:37:49 35.1804 2.0471 -.- 3.8 3 SE TISSEMSILT.ARG
1170723 17/10/2012 18:58:20 37.2558 -13.2485 -.- 3.6 3 AZORES-CABO DE SAN VICENTE

1170805 18/10/2012 11:24:24 37.1935 -12.9832 50 4.7 3 AZORES-CABO DE SAN VICENTE



jand

1170963 19/10/2012 17:21:12 27.7721 -18.0876 11 2.5 4 W FRONTERA.IHI
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    1170962 19/10/2012 17:51:24 27.7714 -18.0855 10 2.1 4 W FRONTERA.IHI
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    1170964 19/10/2012 17:59:37 27.7685 -18.0831 10 2.4 4 W FRONTERA.IHI
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jand

Ingrid Parparacen on the Avcan facebook page has just reported :

,,vibracion medianamente fuerte en las toscas ,en este momento,,

,,fairly strong  vibration in Las Toscas at this time,,

I think Las Toscas is around the area of Frontera.

jand


jand

OT but Iceland has started with a swarm of earthquakes today.

The strongest has been a 5.2 earlier this morning.

http://imageshack.us/photo/my-images/99/icekw.jpg/

jand

This has been posted on You Tube re the swarm of earthquakes in Iceland.



Tjornes Fracture Zone Earthquakes 2012

jand

This is very interesting .


Spanish news agency ABC reported, that on 18 October 2012 in the region of El Esparragal, Puerto Lumbreras, was found in the ground a huge crack length of 1.5 kilometers (see the photo on link below), the depth of crack in places up to five meters.

..Spanish news agency ABC reported, that on 18 October 2012 in the region of El Esparragal, Puerto Lumbreras, was found in the ground a huge crack length of 1.5 kilometers (see the photo above), the depth of crack in places up to five meters. Experts from the Geological and Mining Institute of Spain have already arrived in the region of El Esparragal, Puerto Lumbreras to assess the causes of such a large crack, but while experts find it difficult to answer the question - what caused the appearance of cracks in this area of Spain. Local authorities also appealed to Spain's Autonomous Institute of Geology for further study of the problem..

http://hainanwel.com/en/unusual-world/2095-huge-crack-in-spain.html




jand

Today seems to be a strange day now an earthquake swarm swarm in mainland Spain.



1171117 21/10/2012 01:53:56 38.0442 -3.3120 5 1.2 4 NW TORREPEROGIL.J
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    1171121 21/10/2012 03:07:49 38.0452 -3.2850 10 1.8 4 N TORREPEROGIL.J
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    1171154 21/10/2012 04:01:37 38.0493 -3.2907 1.4 4 NW TORREPEROGIL.J
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    1171155 21/10/2012 04:04:02 38.0460 -3.2770 1.4 4 NE TORREPEROGIL.J
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    1171159 21/10/2012 04:47:24 38.0407 -3.2772 10 1.3 4 NE TORREPEROGIL.J
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    1171158 21/10/2012 05:20:40 38.0212 -3.3149 1.1 4 SW TORREPEROGIL.J
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    1171160 21/10/2012 05:24:43 38.0489 -3.2816 1.1 4 N TORREPEROGIL.J
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    1171147 21/10/2012 05:30:41 38.0337 -3.2847 10 1.4 4 SE TORREPEROGIL.J
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    1171235 21/10/2012 12:01:07 38.0551 -3.2792 1.6 4 NE TORREPEROGIL.J
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    1171255 21/10/2012 12:51:23 38.0439 -3.2678 10 1.8 4 NE TORREPEROGIL.J
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    1171261 21/10/2012 13:41:04 38.0551 -3.2793 9 1.3 4 NE TORREPEROGIL.J
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    1171273 21/10/2012 13:54:08 38.0331 -3.2783 1.1 4 E TORREPEROGIL.J
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    1171280 21/10/2012 17:36:08 38.0446 -3.2745 3 1.2 4 NE TORREPEROGIL.J
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    El mapa siguiente es del último sismo.

    http://www.ign.es/ign/resources/sismologia/www/dir_images_terremotos/detalle/1171280.gif



jand

,,The graph of evolution of the depth of the earthquakes from 20/09/2012, is clearly the areas of activity at 10-20 km, highlighting the enjambrito of days ago in the center of the island to about 10-13 km and yesterday in the area of the swarm to Sabinosa N 10 - 11 km, from the pine forest at 13.9kmthe deep 28 km and the last under the island to about 11.4km... ,,

http://www.avcan.org/sismica/graficas/G2013.jpg?t=1350855354

www.facebook.com AVCAN


jand

This is also an interesting site to watch it show Buoys all over the world and after an earthquake they give Tsunami warning modes.


http://www.ndbc.noaa.gov/

jand

OTbut update on the Iceland earthquakes.

..

Earthquake activity offshore North Iceland continues

Update

23.10.2012

The earthquake sequence which started last Saturday offshore North Iceland continues.

Yesterday morning (22. October) between 01:00 and 08.00, several earthquakes were detected slightly south-east of the main cluster where the M5.6 event occurred on Sunday morning. Yesterday's cluster is located slightly closer to the Húsavík Flatey Fault and strongest events were around M3.9 at 05:25 and 05:32.

Another M3.5 earthquake at 21:16 on 22. October and an earthquake M4.0 at 05:27 on 23. October were again located in the area of the M5.6 main shock further northwest. These earthquakes are purely tectonic and no signs of volcanic activity have been observed.

The analysis of the M5.6 main shock revealed a normal-faulting source mechanism (downwards movement), which indicates it to be linked to the extension of the Eyjafjarðaráll graben system and not directly to the Húsavík Flatey Fault, which shows horizontal strike-slip movements. It is neither possible to estimate how long this activity will be ongoing, nor can further earthquakes of M>4 be excluded.

This seismic sequence is located close to the western end of the Húsavík Flatey Fault and it can not be ruled out that it will effect the stress field of this fault. A rifting episode during the Krafla fires 1975-1984 caused a stress decrease on the Húsavík Flatey Fault and stress is accumulating on the fault system again since then. Deformation measurements (GPS) reveal that the Húsavík Flatey Fault has accumulated enough stress for an earthquake around M6.8 (Metzger o.fl., 2011).

The strongest earthquakes known on the fault were around M7, e.g. 1755 and 1872 in the Skjálfandi bay.

http://en.vedur.is/about-imo/news/nr/2558




jand

Enrique from Avcan has posted this comment on the AVCAN Facebook page re the situation in Iceland.

Translated.

,,In Iceland we have a swarm moderate seismic who had a 5.6 as strongest quake. Seems that this earthquake this linked to the extension of the Eyjafjardarall graben, (come on opening of the dorsal Atlantica) but has not dissipated effortZOS, think that something worse has accumulated it in the area where have been the major seismic events of the island, to the failure Húsavík Flatey, which is very close and the short transformante to the recorded previous to the South, so that this activity may be prelude to something worse, nothing less than a 6.8, so have calculated it according to the GPS deformation... and in the past, earthquakes strong acquaintances were around magnitude 7 in 1755 and in 1872 in the Bahia Skjálfandi. This is information... and know inform without alarmismos of any kind and with evidence. ,,

jand

Note 138 AVCAN - 22/10/2011 - 22: 30 h peninsular. -EVOLUTION AND TRACK ACTIVITY QUAKE-VOLCANIC ISLAND OF IRON.

http://www.avcan.org/sismica/graficas/G2023.jpg?t=1351026918

Translated

,, today don't carry even one located by the IGN, although they are quite a few more signals located in the spectrogram and the sensor seismogram of CHIE. That is why all the earthquakes we have from that I put as a reminder this empzo last year... 15681 chart nothing less... Today it reported some vibration in El Mocanal, San Andrés and Los Llanillos Sabinosa. In terms of odors, smells eggs rotten in Sabinosa lower and in the Julan area have been reported. As for the strange behaviour of animals have not reported. Significant deformations in houses, doors or Windows, have not been reported. Remind everyone that it is very important if you feel something of all this, it is convenient to report it to the IGN have documented what was in addition to the importance that has in case of monitoring the possible opening of an eruptive mouth area... It is very important. ,,


http://www.avcan.org/sismica/graficas/G2023.jpg?t=1351026918

jand

NOTE 139 AVCAN - 24/10/2011 - 22: 30 h peninsular. -EVOLUTION AND TRACK ACTIVITY QUAKE-VOLCANIC ISLAND OF IRON. THE historical SEISMICITY in EL HIERRO > 2.5

http://www.avcan.org/?m=Mapas&a=mapa&mf=5073

earthquakes from 01/10/2011 to 24/10/2012 mag > 2.5 - violet-(3) earthquakes from 01/08/2011 to 01/10/2012 mag > 2.5 - Rosa-(68) earthquakes from 16/06/2011 to 31/07/2012 mag > 2.5 - red-(729) earthquakes of 16/12/2011 to 15/06/2012 mag > 2.5 - orange-(17) earthquake of 16/10/2011 to 15/12/2011 mag > 2.5 - yellow-(297) EARTHQUAKES of 06/02/2011 to 15/10/2011 mag > 2.5 - green-(397) earthquakes of 01/01/1970 to 01/06/2011 - dark blue-(48) today continue as in the past, don't carry even one located by the IGN, although they are quite a few more signals located in the spectrogram and the sensor seismogram of CHIE until it has stopped (is incredible that stops over and over again and not do or say anything). Today review, the seismicity equal to or greater than 2.5 is that area has crushed every swarm, hare a breakdown in responses so that they see as it has evolved... each swarm has been in a zone not crushed previously... when less an important observation. Today it reported some vibration in El Mocanal, Los Mocanes, San Andrés, El Pinar, Tigaday, Los Llanillos, Sabinosa and the table. In terms of odors, reported smell eggs rotten again in the lower area of Sabinosa, Orchilla and the area of the Julan. As for the strange behaviour of animals have not reported. Significant deformations in houses, doors or Windows, have not been reported. Remind everyone that it is very important if you feel something of all this, it is convenient to report it to the IGN have documented what was in addition to the importance that has in case of monitoring the possible opening of an eruptive mouth area... It is very important. (Henry) http://www.ign.es/ign/layoutIn/geofisicaCuestionarioMacrosismico

jand

,,map 6 swarm in the central area of the island, the last swarm we have had, in pink,

http://www.avcan.org/mapas/AVCAN4836.jpg?d=1351111656




jand

There seems to be a lot of thick lines on all the islands graphs and the red energy line is strong on some of the islands  even on Fuerteventura.

To view click on the island graph then on the new page on the right click into ESPEC.


http://www.02.ign.es/ign/layoutIn/volcaSenalesAyerHoy.do#




jand

,,Arranged the seismograms, and notable earthquake, by the way which has been detected... in the Centre of the island under border...(Enrique),, AVCAN

1172099 25/10/2012 16: 22: 03 27.7531 - 18.0173 11 1.6 4 W BORDER.IHI


jand


jand

The Spanish Oceanographic Institute (IEO) has shifted to Canarian waters the vessel Angeles Alvariño, from which over the next months it will be three campaigns, which will study the biodiversity of three seamounts, so the transport of heat in the ocean and the waters around the volcano in El Hierro.

Campaigns were presented this Thursday aboard the Angel Alvariño, ship launched in February of this year, at a Conference of crimping in which participated the Deputy Director general for research of the IEO, Demetrio de Armas; the subdelegation of the Government in Santa Cruz de Tenerife, Guillermo Díaz, and the researchers Eugenio Fraile and Pablo Martin.

The first of these campaigns will begin on October 27 and aims to study the biodiversity of seamounts Bank of conception, to the Northwest of Lanzarote, and Amanay benches and the banquet, in the South of Fuerteventura.

During this campaign, within the indemares project, Visual surveys of the seabed with the underwater robot Liropus2000 and towed underwater vehicle Aphia2012 will be made for the first time.

On December 5 will begin the campaign Raprocan, whereby the transport of heat in one of the main components of the climate system on the planet, which is called loop jatitudinal, that runs through the northern part of the Canary Islands will be studied.

In addition, at the end I study and part of the same campaign, scientists will study the conditions of the water around the submarine volcano on the island of El Hierro.

Eugenio Fraile said at press conference that with the Angeles Alvariño will continue the studies that were conducted with the ship Ramón Margalef as a consequence of the submarine volcano which erupted in the vicinity of the fishing village of La Restinga, in the South of the island for months.

Investigations of the Spanish Oceanographic Institute in El Hierro as a result of the eruption of the volcano were made from October of last year and emissions of magma samples for seven months.

Demetrio de Armas recalled that the Ministry of economy and competitiveness has awarded a research project so the Spanish Oceanographic Institute to study for another two years the evolution of the submarine volcano in El Hierro.

Vulcan, is the project through which we will study variations in the physical, chemical, biological and geological properties of the underwater eruption zone.

The research vessel Angeles Alvariño, which is almost Ramón Margalef ship twin, has 46 meters in length and in its construction and equipment they have invested around 20 million euros, from the IEO and European Feder funds.

It has capacity to accommodate fifteen researchers and technicians, in addition to their twelve crew members.

http://www.canarias7.es/articulo.cfm?id=279347

jand

OT but a huge mega storm is heading for the United States.

Isn't it strange that a hurricane in the Bahamas would somehow turn into a monster mega-storm and slam into the Northeast at the end of October? Aren't hurricanes supposed to weaken as they move north over cold water? What the hell is going on?

The answers are... yes, yes, and we're not completely sure. This is a beyond-strange situation. It's unprecedented and bizarre. Hurricanes almost always bend out to sea in October, although there have been some exceptions when storms went due north, but rarely. No October tropical systems in the record book have turned left into the northeast coast.

The strong evidence we have that a significant, maybe historic, storm is going to hit the east coast is that EVERY reliable computer forecast model now says it's going to happen. The only way we can forecast the weather four or five days days from now is with the aid of these super-complex computer programs run on supercomputers. The two best, the European and the U.S. GFS (Global Forecast System) run by NOAA, are now in reasonable agreement that there IS going to be an extraordinarily unusual confluence of events that results in a massive storm.

The upper-air steering pattern that is part of the puzzle is not all that unheard of. It happens when the atmosphere gets blocked over the Atlantic and the flow over the U.S. doubles back on itself. Sometimes big winter storms are involved.

The freak part is that a hurricane happens to be in the right place in the world to get sucked into this doubled-back channel of air and pulled inland from the coast.

And the double-freak part is that the upper level wind, instead of weakening the storm and simply absorbing the moisture - which would be annoying enough - is merging with the tropical system to create a monstrous hybrid vortex. A combination of a hurricane and a nor'easter.

At least that's what the models are saying. And since all of the independent models are saying something similar, we have to believe them and be ready.

For most people being ready means getting to the store and getting stuff before everybody else gets wise and gets the stuff first. The forecast is for an incredibly widespread and long-duration windstorm, meaning power will likely be out for an extended period of time in a lot of locations.

A transistor radio is your best friend in a situation like this. Get one and enough batteries to keep it going. Your cell phone may or may not be your friend after a big storm.

For people near the coast, it's critical that you pay attention to local evacuation orders and emergency information. This storm, as forecast, will create dangerous and potentially life-threatening storm surge along hundreds of miles of coastline north of where the center comes ashore. Big storms move a lot of water, and this one is about as big as they come.

Right now, it looks like the storm center will land between the Delmarva and New Jersey, which would put the entire Tri-State area of NJ, NY, and Connecticut on the bad side of the storm. The Jersey Shore, Long Island, and New York City itself would be exposed to the brunt of the storm surge due to the "L" in the coastline at NYC. The angle and duration of the wind will keep the water high for an extended period of time, if this comes together as forecast. This means transportation disruptions and widespread coastal damage.

If the storm comes in farther south, the Delmarva, Delaware Bay and maybe the Chesapeake will be at risk. A storm the size that's forecast would cause problems throughout New England as well, even if the center is south of New York. And then there is the threat from flooding rain and the extremely heavy snow well inland.

To make all this worse along the coast, the moon is full on Monday, meaning the high tides will be higher yet.

The hope we have is that the computer models are not handling this unusual situation well, and are predicting a stronger storm than we get. But, we can't bet of it. Even a weaker version will likely mean a nightmare for millions.


http://www.wunderground.com/blog/bnorcross/show.html?entrynum=18

jand

Note 141 AVCAN - 26/10/2011 - 23: 00 h peninsular. -EVOLUTION AND TRACK ACTIVITY QUAKE-VOLCANIC ISLAND OF IRON.

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

=5084 earthquakes from 01/06/2011 to 26/10/2012 SISMOA no - blue-light - prof (27) earthquakes between 0.1 and 2 km - red-(7) earthquakes between 2.1 and 4 km - Rosa-(16) earthquakes between 4.1 and 6 km-(0) earthquakes between 6.1 and 8 km - orange (11) earthquakes 8.1-10 km - yellow-(166) earthquakes between 10.1 and 12 km - green-(325) earthquakes between 12.1 and 14 - dark blue - km (42) today could not find none for the IGN, although you see quite a few more signals detected in the spectrogram and the sensor seismogram of CHIE. So as today make a review of the incredible activity from 14 km upwards with a marked alignments NNW - SSE and an area where progress has been made the intrusion from the Gulf to the very clear Sabinosa between 12 and 8.1 km N, being more specific 10-8.1 km. There are also other alignments and also other interesting areas such as the area of shallow earthquakes between 0 and 4 km in the area of summits. Today it reported some vibration in El Mocanal and Los Llanillos. In terms of odors, not have been reported. As for the strange behaviour of animals have not reported. Significant deformations in houses, doors or Windows, have not been reported. Remind everyone that it is very important if you feel something of all this, it is convenient to report it to the IGN have documented what was in addition to the importance that has in case of monitoring the possible opening of an eruptive mouth area... It is very important. (Henry

http://www.avcan.org/?m=Mapas&a=mapa&mf=5084

jand


1172351  27/10/2012  11:29:30  27.5686  -18.2344 59 1.8 3   SW EL PINAR.IHI
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    1172356  27/10/2012  11:39:13  27.7152  -18.0217  12 1.5 4   W EL PINAR.IHI
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    1172355  27/10/2012  11:42:32 27.7252 - 18.0386 14 1.3 4    SW FRONTERA.IHI
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    1172358  27/10/2012 12:18:18 27.7356 -   18.0269 12 1.1 4   SW FRONTERA.IHI 
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    1172359  27/10/2012  14:22:43  27.7368  -18.0212  11 1.3  4  SW FRONTERA.IHI 
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