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El Hierro

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

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fifi

Just a quick look this morning....explosive sounds heard by the Islanders in various locations....suggested reasons ....crack in the earth or landslide....

The situation at the moment poses no threat unless the eruptive process starts again according to a leading Volcanologist.



Translated http://www.abc.es/agencias/noticia.asp?noticia=977019
Carracedo: "The management after the eruption was nearly disastrous"
26.10.2011 / 19:11 h

.- The director of the Station Volcano Islands, Juan Carlos Carracedo, said today that the management after the submarine eruption in El Hierro was "nearly disastrous" and considered that the lack of foresight led to the loss of "valuable information" and the making of "chaotic and contradictory decisions".

The situation was always "well controlled" by the National Geographic Institute (IGN), stressed Efe Carracedo, but managing it once the  eruptive process began "has been disastrous" because there was no place allowed for the scientific staff who knew the island and this type of volcanism.

Carracedo regretted that they did not have ability to anticipate the need for an oceanographic ship that could observe and follow the eruption from its beginnings in the sea, which caused him to miss all the "valuable information" in the early stages of submarine eruption.

This resulted in a lack of knowledge of "fundamental factors" such as the depth of focus, which caused them to take  "chaotic and contradictory," civil protection measures  highlighted the vulcanologist.

Juan Carlos Carracedo said that with the arrival of the ship Ramon Margalef, Spanish Institute of Oceanography, has resolved the  "most important" issue because it showed where the volcano is located, its size and depth, and it was found that "no poses no danger. "

Earthquakes taking place in recent days may be due to two reasons, as explained by the volcanologist.

The most likely in the opinion of Carracedo is that now we are producing an adjustment in the earth's crust, after swelling and breakage occur.

Therefore, the seismicity located in the north of El Hierro is the usual procedure and there is no danger, but Juan Carlos Carracedo has not ruled out another option, which considered more unlikely, that is the reactivation of the eruptive activity. EFE

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

Current Volcanic Islands (AVCAN)
NOTE AVCAN 285 - EARTHQUAKE ACTIVITY-VOLCANIC - IRON ISLAND - 27 OCTOBER 2011-12:00 h peninsular - Seismic activity remains moderate to high, with some moderate earthquakes located in low magnitude. Continued major tremor signal, which is somewhat more unstable and significant oscillations, even small explosions

                   ..................

Tweets.... the battle continues between the Politicians and the Scientists.

PrensaElHierro Cabildo de El Hierro
Civil Protection technicians Cabildo government and satisfaction with information before the people and activities of "aggregators".
2 hours ago
                   ........
A little pat on the back for themselves......

PrensaElHierro Cabildo de El Hierro
The president of the council believes that the way to tackle this emergency can be taken as a reference for others that happen in the Canaries.
                  ..............

But unfortunately they have lost the trust of the Islanders who are annoyed about the way things were handled.....

PrensaElHierro Cabildo de El Hierro
Antonio Castro highlights the relationship between government and citizenship of the islanders face of uncertainty.
2 hours ago

They offer a photo to the press with the caption "Know that Parliament is always on your side" in the hope of gaining the Islanders trust.





Interesting isnt it? [:)]



Little Pedro in the Nauti Lux is still my hero.[;)][:D]



jand

Letter from Raymond Matabosch (dedicated volcano follower), currently at El Hierro
Yesterday evening Earthquake-Report.com received an Email from Raymond Matabosh,  a French volcano follower currently at El Hierro (staying overnight at Valverde at the moment). Raymond has been studying the Canary Island volcanoes for a long time as a auto didactic  amateur volcano follower. Raymond attracted our attention towards an article he had written on September 28 regarding the El Hierro activity.  As Raymond has no University degree and is not connected to any science organization, his work is merely done off site and based on the open source data he can get. We print the Story of Raymond because we are convinced that what he wrote is one of  the viable scenario for what currently is occurring below El Hierro.

Hello
Although I have no university degree, i have been educated in the field in 1965 by the great Haroun Tazieff, I started to carry his bag and all I learned was coming from Haroun. I am following volcanoes for more then 45 years and I am now in El Hierro ... and I am following day by day the evolution of the seismicity of the volcano island
Earthquake-Report.com wrote earlier:
"Most people in El Hierro were happy to hear that the new crater was finally found and appear to be too happy with the birth of new baby"
But what are they talking about ! ... this crater has been around for decades and it is located 3/4 miles south-south-west of La Restinga and rises from a depth of more or less -370 meter. I have given the location of this crater already in an article i wrote on 28/09/2011.
The new crater is located 2 km from the south-west coast of El Hierro at a depth of 150 meters ... the water temperature is above 60°C and the Ramon Margalef can unfortunately NOT use his ROV in water at temperatures above 30°C (risk of destruction or important damage) ...

The volcano presented by the Ramon Margalef is not the new volcano. The other parts of the picture are not showing signs of an recent eruption ... In addition, the new vent culminates at a very shallow depth of 70 m. Contrary to what a lot of people and scientists are telling i have to stress that the Jacuzzi is still working. Also small geysers, stage 2 of an eruption surtseyenne, are appearing ...
I am here on the island and i can see this from my viewing point ...

Finally, from a volcanic point of view, it is normal that the earthquakes are shifting towards El Julan and El Golfo. Depth close to 20 km, they show that the magma is travelling towards the eruptive vent / fissure ... the GPS data and seismograms are in constant evolution n and the ground at El Golfo, El Julan and in the Sea of #8203;#8203;Las calmas ...
Cordialmement
Raymond Matabosch
Translated from French by Earthquake-Report.com

fifi

Very interesting jand. I think that the area that the ship scanned and showed models of are the one in this image which was posted before the ship went out (they confirmed that it was 2400 metres from the coast). No studies done on the other one then if what he says is true.


SurfJames

So, what Raymond Matabosch is saying, is that at the moment the magma is circling around El Heirro at a depth of 25km and that the vent that opened is closer to the southern shore that the one previously thought. He also says, that at the moment hot sea water is being expelled from the fissure causing guessers and staining of the water. (The fish die because of acidic water from the sulphur and decreased oxygen from the heat). Eventually the magma will burst out of the vent into the sea.

This is really interesting and exciting. What happens when the magma pours into the sea? Does anyone know? Do we get a gradual build up of rock or an explosive event?

I think the authorities have been caught napping....!

kevin2003

quote:
Little Pedro in the Nauti Lux is still my hero.[;)][:D]


Abra su mente.

jand

Has anybody seen the graph for Gran Canaria today.

http://www.01.ign.es/ign/layoutIn/volcaSenalesAyerHoy.do

This is the third islands graph this week now to show these
seismic movements surely this cant still be blamed on a technical problems.

fifi

quote:
Originally posted by kevin2003

quote:
Little Pedro in the Nauti Lux is still my hero.[;)][:D]






Oh no[:0] Leave me with my fantasies....MY Pedro is dark and daring and definitely worthy of Nauti Lux [;)][:D][:D][:D]

fifi

quote:
Originally posted by SurfJames



This is really interesting and exciting. What happens when the magma pours into the sea? Does anyone know? Do we get a gradual build up of rock or an explosive event?

I think the authorities have been caught napping....!



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

Its really interesting Surfjames. There are so many different opinions and statements being made its hard to know what is likely to happen[:)]

It may continue to just move around underneath the ocean for a long time or even erupt on land. If it goes to the next stage at sea, depending on the amount of magma and the pressure it may be similar to the shallow Surtseyan eruption in Kavachi, which has erupted several times without yet creating an Island.http://www.youtube.com/watch?v=CsKTzBZNjtE&NR=1

If it continues to stage four depending on the strength and duration of the eruption it could eventually produce a new Island http://www.youtube.com/watch?v=4MmX_i7S9u4

Because the  calculations were based on the tremors on the graphs and the information was incorrect the amount of magma originally calculated may not be right. They also use the calculation of the deformation of the land and also the size of the mouth of the volcano when doing their estimates. Originally the mouth of the volcano was thought to be one metre wide when in fact the Ramon Margalef ship scanned it as 120 metres wide. This seems to be confusing some of the scientists because it does not correspond to the amount of deformation on the Island. They would have expected much more from 120metres. This calculation of the amount of magma was made the other night based on the assumption that the volcano was newly created as was reported by the Ramon Margalef....

Translated...15 million m3 in 15 days .. assuming that all the crater is new .. which is what the press release says: "The science team has located a newly created volcano cone-shaped, with a base diameter of 700 meters, a height of 100 meters and a crater about 120 meters wide" " one million cubic metres a day."

 If it is not a newly created volcano then these calculations too will be wrong.
Its all very confusing.

The type of eruption also 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.




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


Power surges were one of the suggestions for the strange graphs that are appearing recently jand but who knows really?

jand

Well the Frenchman sems to know what he is talking about.

http://desorchideesetdesorties.20minutes-blogs.fr/

jand

On this blog there is a photo I think of the Volcano that he said was already there under the sea that he disputes has just been formed.



http://www.come4news.com/el-hierro,-les-canaries-intense-activite-seismo-volcanique-228239

fifi

Its a fantastic photo. Ive sent the link to AVCAN and asked them for their opinion. I wonder if I will get a reply?[:)]

fifi

Replies piling in, I havent analyzed  them yet. (Translated by Google)



Mari Gonzalez Tejera Every day you seem to me better and better and you can be proud of your good work in capital letters FELECIDADES
     8 minutes ago · Like · 1 person · Translate
     Luis Manuel Brice straight from La Restinga to Sabinosa may have about 11 kms ... besides that El Hierro has many underground tunnels and some communicate from inside the sea ...
     7 minutes ago · Like · Translate
     Mary Mathamel  Fifi, it seems that if there is a discussion about that. . Is that text is written by Raymond Matabosch?
     5 minutes ago · Like · Translate
     Luis Manuel Brito David Brice I invite you to go and see the bathymetry GRAFCAN Iron ... know how much you will be impressed by mountains and volcanoes that are in the vicinity of the Restinga .... and Joan Martí says this crater found bathymetry appears nowhere ... so I think that what this refers to another French amateur is so many ...
     5 minutes ago · Like · Translate
     Octavio Fernandez  Fifi, I'm afraid That no one here knows at 100% Where the volcano is pictured That Ramon Margalef. In the Margalef's picture, You Can See That the crater is Between 17 º 59 'W and 18 º 00' W, latitude but no value Can be seen.
     4 minutes ago · Like
     Brice Manuel Luis Maria do you mean the translation of the article come4news.com? The article is in French but you can use the google translator ... The shield of the volcano is in that article, that article is from September.

jand

I am in contact with someone in America who also says he has satellite photos of El Hierro showing the Volcano already there taken a few weeks ago . I have asked him to send me a link for them and I will post this so you can also send to Avcan to look at.

fifi

Ok great.[:)]



Two more....one from AVCAN themselves....

 Octavio Fernandez You're welcome Fifi. Most people here are wondering if the hypothesis of the French man is true or not ... stay tuned! ;)
4 minutes ago · Like

Actualidad Volcánica de Canarias (AVCAN) Volcán en escudo ;) Shield volcano[:)]( Not sure what they mean there with the smiley?[:)])

http://en.wikipedia.org/wiki/Shield_volcano

jand

Fifi Links as promised

2Fwww.flickr.com%2Fphotos%2F50271097%40N04%2F6212038225%2Fin%2Fphotostream%2F


2Fwww.flickr.com%2Fphotos%2F50271097%40N04%2F6212038225%2Fin%2Fphotostream%2F



fifi

Hi jand, the photo is marking out some of the cones on the Island.  The Island is literally covered with them. I dont think anyone would be able to tell if one of them was 3/4 miles away from looking at the photo. It appears to have come from this website. http://hisz.rsoe.hu/alertmap/ They seem to have a facebook page. Maybe they could explain the photo to you. Im not sure how I would explain it in Spanish to AVCAN without knowing something about it. I may not be online much for the next couple of days due to a death in the family tonight so hoping you will keep an eye on the volcano story for me.

jand

So sorry Fifi to hear that one of your family has passed away.

I will continue to update for you El Hierro .

fifi

Thanks jand.

Animated video of the volcano made by the team on the Ramon Margalef http://www.youtube.com/watch?v=sj8JTJP7gNM

Scanned image of area 1998



Scanned image of area 2011 showing the growth of the volcano


kevin2003

Fi,what is the diameter of the circle in the lower picture?
Abra su mente.


jand

Could be the earthquake in Peru was a 7.00 just before 1900.

fifi

quote:
Originally posted by kevin2003

Fi,what is the diameter of the circle in the lower picture?



 The base diameter is 700 meters, the  height is  100 meters and the  crater is about 120 meters wide.

Because the statement made by the team on the Ramon Margalef about it being a new volcano has been taken quite literally  estimates were  done based on it being "born" on the eruption date (15 days old at the time of the estimate). They believe that the amount of magma is 1 million cubic metres  per day. It is still 300 meters below sea level so for a huge explosion it would need to keep erupting undersea and grow a bit taller I think  because most of the time the huge steam eruptions and rooster tails dont start until the magma is no longer covered with water although there have been exceptions to the rule depending on the force behind the eruption. One estimate I read was that there was maybe 100 days left to go in the eruption but others say different things so who knows?. Think I will study it a bit more and go and put a bet on at the bookies.[;)][:D][:D][:D]

fifi

quote:
Originally posted by jand

http://www.01.ign.es/ign/head/volcaSenalesAnterioresDia.do?nombreFichero=CFUE_2011-10-28&estacion=CFUE&Anio=2011&Mes=10&Dia=28

Something has set all the islands graphs off again at just past 1900.



You are getting like me jand. I love figuring out the graphs and then checking to see if im right. Its fascinating.[:)]


Magoo

quote:
Originally posted by jand

http://www.01.ign.es/ign/head/volcaSenalesAnterioresDia.do?nombreFichero=CFUE_2011-10-28&estacion=CFUE&Anio=2011&Mes=10&Dia=28

Something has set all the islands graphs off again at just past 1900.



The timing of it seems to match up with a 6.9 earthquake in Peru. Its odd how the El Hiero graphs did not show this one or the Turkey quake that showed up on the other islands. I wonder if the scale on the El Hiero chart has been adjusted to make it more readable?

jand

There is a lot of discussion on the internet now about what is going to happen and lots of peope are discussing about the possibility of the new vent opening up on land .


Copied From jonfr.com/volcano


@Renato, I hope many people on El Hierro read this post. Better one warning too much than no warning at all! And it does not seem likely that the authorithies will warn about anything yet. Very sad, if you know that things might turn to the worse very quickly. Better be prepeared. If you wait with giving warnings until an eruption close to shore or on land actually has started, the warning is too late.
@Islander, same to you. I have been thinking about your reply on October 29, 2011 at 00:08 most of the night. You give people a lot of good information about what to do, based on your own experience. This information should be available for all inhabitants of El Hierro!
@ Jón, same to you. So glad you dare to speak out your fear what might happen and made a special post about the rift zone eruption. So good you feel responsibility towards the locals.

Reply
 jenny says:
October 29, 2011 at 10:53
The following is recommended for yellow alert as per the Direccion General de Seguridad (and giggle translate, which did a very good job of it!).

http://www.gobiernodecanarias.org/dgse/sismo_hierro_amarillo.html

Once declared the yellow phase means that we must prepare for an unfavourable evolution of the phenomenon, and most importantly, be attentive to official messages of prevention and self-protection that will be specific to the areas of risk. The General measures taken in the areas of higher risk are the following:

Listening to the radio or see on television the official reports of volcanic activity and its evolution. It is convenient to have a battery radio.

Having always at home sufficient drinking water, first aid kit, usual medication in case you need, radio, batteries and flashlights. Make sure you have enough medication for the family members who use it regularly.

Use the 1-1-2 only in case of emergency.

For any additional clarification call to the 012

The Internet of the Government of the Canary Islands and, in this case, the Cabildo of iron pages will also be available.

Make sure you have the personal documentation of the whole family and housing organized and grouped to be able to transport the most important thing at home.

It should be a suitcase small with a few changes of clothes, comfortable shoes, brush teeth and other articles of personal hygiene, small blanket, towel and mobile with your bootloader

Cargador = Charger. Whats a bootloader??

Reply
 Jim says:
October 29, 2011 at 11:05
Shows up as 'charger' in my giggle – seems to have a mind of it's own !

Reply
 Sam says:
October 29, 2011 at 11:07
I can't remember but... Is it quakes of about 5 that we will start seeing just before an eruption at katla?

Or I heard somewhere that will start feeling quakes at Vik?

Reply
 Renato Rio says:
October 29, 2011 at 11:50
Sissel: the poor people at Hierro are terribly worried. No wonder. I wished we could have a concrete answer to give them some reassurance.
I don't understand why the authorities keep looking at this situation as if nothing is happening. We've been chatting night and day about the events at Hierro, many different positions, but one thing is for sure: no one here is saying that nothing will happen. Neither at EB.

Reply

jand

Data Update 29/10 – 13:42 UTC
Joke Volta reports from Tigaday (Frontera) -  (she sits with her laptop  in a restaurant with wifi connection) – that the green stain has encircled the coast of Tigaday (Frontera).  The stain could be better viewed when exiting the Los Roquillos tunnel (yes, the tunnel who was closed far a while because of the rockfall danger). Together with Joke in the restaurant : 2 observers with laptop/binoculars – one from press agency EFE.  So, Joke our local earthquake-report.com volunteer reporter, is amid the trained professionals  . Thanks Joke on behalf of our readers.  (ER: Joke was refused admission yesterday in a press meeting at Valverde – As a resident of El Hierro she really felt pushed away from the news. We can understand her...)

Copied From Earthquake.report.



Data Update 29/10 – 13:22 UTC
- Harmonic tremor goes slightly up and down.
- Yesterday IGN listed 63 earthquakes, 4 above or equal to 3, 27 in between 2 and 3 and 32 lower than 2. The strongest tremor was a M 3.3 quake at 14:16 UTC.
- Today, Saturday IGN has listed already 32 earthquake, the vast majority with epicenter in the El Golfo area.  The tremor of 10:46 UTC this morning (1 hour later at El Hierro) was the strongese at M3.3.