• Welcome to the oldest running Fuerteventura Forum.
 

El Hierro

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

Previous topic - Next topic

fifi

Scientists do not expect an imminent eruption in El Hierro because to do so there should be no change in the pattern of seismicity and ground surface deformation, but do not rule out the recurrence of earthquakes of magnitude 4.6 on the Richter scale or higher.

This was stated by Carmen Lopez (Pevolca), who on Monday held a further meeting to discuss the evolution of the current eruptive process on the island El Hierro.


Pevolca members do not rule out a new intrusion of magma in the north of El Hierro where seismic activity is located at a depth of 20 and 23 kilometers.

If the magma approaches the surface, so that an eruption would be "imminent" it should change the pattern of seismicity and surface deformation, which is not observed at the moment.


Regarding the underwater eruption that began a month ago south of La Restinga, Carmen Lopez has said that may last "for days and weeks," but the points of emission near the coast are stable and there appears to be a "close "grounded.

The eruption process in El Hierro  is ongoing and continues to release material in the south, he explained Lopez, who says there are two weak areas of the cortex that do not involve two different sources of emission of magma.

The intensity of earthquakes depends on its distance from the emission source and while it remains in the sea off the coast deep and its magnitude will decrease unless "drastic" changes and recurrence of earthquakes of 4.5 or 4.6 on the Richter scale, which is still a possibility, the scientist added.

He also explained that after the magnitude 4.6 earthquake recorded on the island recently there was  increased risk in case a fracture had opened and therefore it "was a moment of caution."

Now, however, the risk assessment is lower than in the hours after the earthquake because there has been a migration "up" or a strain but this scenario can happen again, recalled Carmen Lopez, who said "we have all the technical means to evaluate the evolution of this phenomenon. "http://www.canarias7.es/articulo.cfm?Id=238187

jand

Looks like they have just felt strong movements

Feel vibrations... 20: 43 - 20: 48-20: 53 uff!
2 minutes ago · Like · 2 · Original

Florence

quote:
Originally posted by jand

November 14, 2011 at 19:22


About the Naos mountain (already mentioned above by tomski2011 at 16:42)

Todays reports about the situation on the Naos mountain (high temperature and strong sulphur smell) are no good news. (14.11.2011 14:24 and 14:40 UTC)

http://earthquake-report.com/2011/09/25/el-hierro-canary-islands-spain-volcanic-risk-alert-increased-to-yellow/

I would be aware of a a possible vent opening on land somewhere close to this location, about 2 km W of Restinga. It is also a place where landslides have been and you can see wide open structures in the (very) steep mountainside; old lava tubes / cuevas in my opinion. The area can be seen from a distance on this video:

http://www.youtube.com/watch?feature=player_detailpage&v=npi_KT-uBNM

At the left side of the picture at about 1:05 minutes.




Did I read a different report?  From what I read it was what was observed from the mountain (ie. looking down to sea) not actually on the mountain itself.  Still an underwater eruption.

jand

The above quote was translated from Spanish (I would be aware now) and means they expect a possible vent now to open on land.

Thay are not saying it has actually happened.

jand




jand

Fifi

This may have something to do with your previous posting on the possible dumping of radioactive waste.

Translated from Avcan


Hi good all. With regard to the doubts that appeared yesterday on the possibility of any radioactive trench near the Canary Islands I have to say that I have been in contact with greenpeace Spain to ask them about the topic and the answer kindly given to me is as follows: Dear Francis, please get in touch with Greenpeace.

The question send us, we are not aware was dumped nuclear waste into the sea in that area but if you have any indication or information on this please send us so that we can evaluate it. Then write to this e-mail address or by calling our telephone number 902 100 505 / 91 204 66 38 from Monday to Friday hours from 9 to 20 hours.

Receive a cordial greeting.

Virginia Cano Department of care and information Greenpeace Spain phone partner 902 100 505/91 204 66 38
7 hours ago · Like · 4 · Original.

jand

Translated from Avcan

Hi Manuel, tonight, or better tomorrow at 03: 00 pm ends the second window of activity after the 4.6 and 36 - 40 h will begin the third window of activity if you follow the pattern. Between 4.4 and 4.6 there were 3 Windows of activity, the day after tomorrow we will come to the third window and the potential for strong earthquake will be quite more higher than today, that the system will have accumulated energy.

Even so may not be in the third window, but in the following, the fourth or the fifth, i.e. within about 4 - 6 days. If not nothing past 6 days, is that there is a change in the system that has alterado-modificado the accumulation of energy of the volcanic system. (Henry)

jand

http://ngm.nationalgeographic.com/your-shot/weekly-wrapper/2011/img/1011wallpaper-week-3-1_1600.jpg

Spectacular photo of Mother Nature at work an ash cloud with thunder bolt lightning.

(Not on El Hierro)


jand

Data Update 15/11 – 09:10 UTC :
 - Joke Volta reports from El Pinar, where she lives, that the stain is still very visible from there
 - the sulfur smell is noticeable in El Pinar (500 meter above sea level)
 - the appearing and disappearing whites on the webcam are tumbling waves and NOT smoking stones !

fifi

quote:
Originally posted by jand

Fifi

This may have something to do with your previous posting on the possible dumping of radioactive waste.

Translated from Avcan


Hi good all. With regard to the doubts that appeared yesterday on the possibility of any radioactive trench near the Canary Islands I have to say that I have been in contact with greenpeace Spain to ask them about the topic and the answer kindly given to me is as follows: Dear Francis, please get in touch with Greenpeace.

The question send us, we are not aware was dumped nuclear waste into the sea in that area but if you have any indication or information on this please send us so that we can evaluate it. Then write to this e-mail address or by calling our telephone number 902 100 505 / 91 204 66 38 from Monday to Friday hours from 9 to 20 hours.

Receive a cordial greeting.

Virginia Cano Department of care and information Greenpeace Spain phone partner 902 100 505/91 204 66 38
7 hours ago · Like · 4 · Original.



                ..............

Yes AVCAN are talking about the video about the nuclear waste dumping and volcanos. I was doing a bit of research into it myself to see if | could find any maps but so far have not found any. Greenpeace have an interesting article on it.http://www.greenpeace.org/international/PageFiles/24222/OSPARhistorybft.pdf

                ..............

I loved the video showing the rocks jumping out of the sea jand.The National Geographic pic is fantastic too.[:)]

jand

The more and more I read about volcanoes (not just on El Hierro but all over the world ) it just gets more fascinating day by day.

It seems that Katla the Icelandic Volcano is also rumbling at the moment.

jand

jonfr.com/volcano


Long day.

I still don't know what the @#$ volcano is doing.. haven't really had a chance to look.

But here are the November quakes up to the 15th.

http://www.youtube.com/watch?v=eQGvGoBeEL4

jand

Jenny says:

 November 15, 2011 at 09:55


http://www.diarioelhierro.es/t26496/pag02.asp?BD=ESPECIAL%20CRISIS%20SÍSMICA&id_registro=140870&Id=26496&BDi=INICIO&nt=p&Md=&rf3=1&rf3=1

Alpidio weapons: "Do not agree with the management of the Pevolca"
 The relationship between the Cabido de Hierro and the Canary was tense for the management of the crisis on the island.

"What is not understood is that in very similar circumstances be decided open or close the tunnel depending on a will that is not explained, nor no one understands it; why last Friday was not opened and and why Yes opens today and why closes the lane closest to the slope of ascent ', says Hierro President'.

SERGIO GUTIÉRREZ, Valverde (15/11/2011 07: 30 hours)
 The President of the Cabildo of iron Alpidio weapons yesterday recognized journal EL HIERRO his disagreement with the manner of managing the crisis by the Pevolca, a tension that comes from the very beginning and which has now materialized with the absence of weapons of the press conferences convened by the Directorate of Civil Protection Plan by volcanic risk.
 Although he didn't elaborate on the reasons for their discontent, del Cabildo President Hierro Yes recognized this newspaper, however, that "the truth is that we disagree with how the topic is being" is not new this; "what happens is that under this interadministrative cooperation we have believed that it is not appropriate to be aerating these differences," he said.

Alpidio weapons trial, "what is not understood is that in very similar circumstances be decided open or close the tunnel depending on a will that is not explained, nor no one understands it;" "why last Friday was not opened and and why today Yes opens and why closes the lane closest to the slope of ascent", asks the President of the Cabildo.

According to weapons, "that does not know anyone, reports that we know that these decisions should they have," he added.

The President of the Cabildo of iron added, in this sense, "they certainly are issues that take you to think that other types of things, which is not really be out of danger, but that danger is on the other hand", he said.

Reply

fifi

Yes they are amazing. I have downloaded a few volcano programmes to watch on the laptop. Its a great way to learn about them.



The cats on the Island are behaving strangely and are eating dead fish http://www.huffingtonpost.com/2011/11/13/underwater-volcano-el-hierro-canary-islands_n_1091252.html?ncid=edlinkusaolp00000003

Do cats not normally eat dead fish?

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

Raymond Matabosch tweeted that the steaming area is at least 500 metres wide. It looks a lot smaller when viewed on the webcam.


                      .............

 28 people who were staying at the Students dormitory in Valverde returned to their homes in La Restinga. Some decided not to return.

jand

http://www.floodwarn.co.uk/hierro_volcano.htm

This site has both the webcams live and also has posted the latest graphs from El Hierro.

jand

Bubbles starting again.

fifi

There is a huge difference in the colour of the water today. You can see the stain increasing in size. The water is starting to swirl again like it did yesterday.

jand

Avcan

Translated

Hello sofia, the system is accumulating energy and Yes, it is the beginning of another stage quite move that will end up with another strong earthquake, that could be the shot of the eruption of the North such. The question of when it may be already her mentioned in the previous post (Henry)

jand

Yes Fifi cant believe how much the stain has incresed in size.

I am trying to the find the post where I copied a link to someone who had drawn looked like hand written the stages of an erruption and there was written on an explanation about the water turning green.

jand

Avcan

Map of the seismicity of the last 3 days, the most notable is that today the seismicity is remains in the Gulf, closer of Earth, though, is not concentrated but aligned, indicating more tectonic behavior, with a spike of seismicity today. The past days in contrast was more concentrated in the Central Gulf indicating entry of magma.Earthquakes greater equal to or older than 3.0 are at the heart of the swarm in color violet (3) including this morning of 3.4 which is lighter on the left and violet.


The earthquakes of today and those of the past days, become to align according to the direction of NNW-SSE, aligned from the sea of the Gulf, passing through the East of the Tanganasoga, area of summits and from there down up to the eruption area in the sea of the calm to la Restinga. Also there are today another alignment destacalbe in NNE-SSW direction with the earthquakes of the last 48 hours to Sabinosa to the West of the Tanganasoga in and out for the Julán to the calm sea. (Henry).

jand

Christina and Antonio, astronomer scientists, are reporting from El Hierro (they flew to El Hierro after hearing from the eruption and being on a holiday) :


Hi, I posted some more pictures from yesterday here:
https://picasaweb.google.com/109867891417952397392/ElHierroVolcanoNov14?authuser=0&feat=directlink

Most of the day, we went to El Golfo and then, while having lunch, overheard a conversation in a bar in La Frontera that the volcano was spitting smoke and stones, so we finished and rushed to the other side of the island. We came towards the end of the afternoon episode and arrived at the viewpoint around 17:00. Already driving down from El Pinar I spotted the smoke on the water, the (guardia civil) ship close to the "action" and the sailboat further out along the southern coast. There were a lot of people at the viewpoint and 2 TV teams. The Guardia Civil helicopter also started to fly around the eruption site around that time, so the picture you posted is likely from that time.

We also have one video, where you see some smoking stones coming to the surface and the Guardia Civil ship next to it. Sorry for the shaking, the wind at the viewpoint is quite strong (the camera was on a tripod). A low resolution version is also on the picture page, the original HD-video is 0.5GB.


YouTube Direkt

We thought the ship was dangerously close, as you see in the video, they must have been at most like 10m away from the vents, I hope they got at least some good pictures. :-p If you look at the position of the smoke compared to the ship there were at least 2 vents out of which the stones were coming. Also, we noted that the jacuzzi, which was the center of the stains from Sunday, is still present but further to the right of the smoking stone places, so this must be a third vent, maybe further under the water or ejecting different material.

We stayed until sunset, took Joke up to El Pinar and then came back later at night when the moon was up, around 22.30. Unfortunately, there was not much activity going on, but the usual stain was visible, even with the naked eye. It was still a beautiful scenery.

jand

Some good news about the fish!!!

Update 15/11 – 11:15 UTC :
 It seems the fishes are recovering around La Restinga, there is a local lady from La Restinga going around to look for them each day. While you still see some dead (but long dead) fishes in the harbour, there are a lot of little ones swimming around. In a small "refuge" in waters east of the harbour, under some sort of lava cave (the place had a name and a sign, but I forgot), there are a lot of large fishes. Hope seems to be coming back to La Restinga. We wish those people all the best!

jand

Fifi there are some new thermal image photos on Avcan please could you psot them.

Thanks.

fifi



Photo taken yesterday.


Thermal imaging of the area is one of the ways of estimating how much magma is being produced.Yesterdays image was made by the Guardia Civil helicopter which some of us watched on the webcam.

[/URL]

Graph showing the temperature.

tamara_k

sorry, guys, I know it's a serious topic, but I found this bit funny


-----------
The cats on the Island are behaving strangely and are eating dead fish http://www.huffingtonpost.com/2011/11/13/underwater-volcano-el-hierro-canary-islands_n_1091252.html?ncid=edlinkusaolp00000003

Do cats not normally eat dead fish?
-----------

(reminds me of old courtroom joke - Doctor, how many autopsies have you performed on dead people? - All my autopsies were performed on dead people)

Cats eat dead fish. I am surprised that somebody questions that. In fact, when they eat fish (and most of them love fish), it is mostly dead, sometimes raw, sometimes cooked.

Unless they steal fresh fisherman's catch or go fishing in a fishtank themselves or course :)

jand

Thanks Fifi.

Copied below comments from someone watching the situation in El Hierro from the USA.

Again, thanks to all those contributing around the world. Hope if/when a tsunami is about to take place some one some where is awake to sounds an alert. A bit of dead time/space seems to happen around the early hours in the morning (understandably) Makes a lot of people on the east coast (like me) very nervous. Wish I could contribute also. I,like most others are in the dark like a mushroom WE THANK YOU ALL !!!!!!

jand

Well Etna has started to errupt now!!

Copied From Avcan.

Volcano ETNA has started a new paroximo (on 18 I think) and the images are breathtaking with a huge column of gas in the cameras 2 and 3 and casting of lava coming out by 1 (if the ash does not cover vision as it does now) is bestial... = > http://www.guide-etna.com/webcam/

And who wants to more normal wecam and thermal camera of the INGV pointing to ETNA, where looks hot coming out that ash...
= > http://www.ct.ingv.it/index.php?option=com_wrapper & view = wrapper & Itemid = 202 & lang = it