El Hierro

[SurfJames]

Is that the latest photo fifi....!!!

It's off again, if it is. This time we are gonna' see rocks hurled into the air.

[fifi]

There was no date on the photo so it may just be the press using an old one Surfjames.

[SurfJames]

Thanks fifi...I thought so too. But there's definitely stirrings down there, judging from the activity on the surface and the smell of hydrogen sulphide.

I still cannot get on the webcam.

[fifi]

I just had a better look at the photo and its one of the Guardia Civil ones so there was no mention so far of them going out in the helicopter so im guessing it was not taken today but is being used in the press.

The webcam went a bit strange last night. I thought I was seeing things when large pink balls kept popping up infront of my eyes[] Maybe it will be fixed later.[]

Update ....it may be a new photo....The Association of Volcanologists have mentioned on their Facebook page that the helicopter went out to take photos of the landslides yesterday.

[fifi]

AVCAN posted this a couple of minutes ago.

Current Volcanic Islands (AVCAN)
Reappears in La Restinga eruptive jacuzzi, which is consistent with increased tremor, ie tremor increases and increases the flow of magma and magmatic gases flow to produce the demonstration that we see in the webcam

PS

Its working on the link they gave at the moment. Large jacuzzi very close to the pier

http://cecoielhierro.org/index.php?option=com_wrapper&view=wrapper&Itemid=396

[jand]

TripleH

Quote This is a bit harsh Paddster! jand hasnt slept for 4 weeks or so just to bring us this information!!

Well for your information I am sleeping like a baby now I know this has been brought to the attention of so many people what is actually happening at the moment in El Hierro and many people now on all the islands and all over the world are following this with interest and with their safety in mind.

[jand]

Data Update 13/11 – 10:38 UTC :
- Joke has arrived at the Naos viewpoint and reports that a new stain is forming approx. or on the location of the former jacuzzi. The new stain is brownish at the inside , green at the ourskirts and a layer of foam at the edge.

[fifi]

http://www.diariodeavisos.com/2011/11/13/actualidad/pedimos-a-la-Gente-que-CONFIE-en-los-cientificos-y-en-El-pevolca



La Restinga is still a desolate town.

Scientists are working tirelessly in El Hierro, analyzing the signals given by the ongoing volcanic phenomena. One way of knowing what is happening is by looking at  the tremor. It is recorded by the seismograph when the lava is on its way out. In some online forums it has been noted that there was already a signal indicating that tremor in the Gulf had begun an eruption under the sea, which was denied by the director of the Laboratory of the National Geographic Institute (IGN), Carmen López.

"With the current data from the monitoring network there is no evidence that there is another tremor signal," says the scientist.  IGN have installed equipment to distinguish different simultaneous sources of tremor, so "If there is  a second source, we are able to distinguish which is associated with the eruption of La Restinga".

They are following the eruption in La Restinga, and the possibility of another in the Gulf, under the sea, and possibly on land gains weight. There are earthquakes of more than 4.6 degrees forecast.

Lopez acknowledges facing a professional challenge and also a great responsibility, but called for confidence in the work of scientists in this volcanic crisis.

A water bottle is the IGNs "natural" method of checking  continuous movement of the earth.



On the coast

Gases are noted. The envoys of this newspaper moved yesterday morning to La Restinga, where the gases from the eruption caused them respiratory discomfort and dryness and itching in the mouth and throat. However, according to official measurements, the air in the area is fit to breathe.

Employment agreements. The City of El Pinar Fecam negotiates with the Canary and Employment Service agreements to provide work for people who have become unemployed in La Restinga by economic paralysis that is caused the volcanic emergency.

IU sees little aid. The Congress candidate from IU, Jose Perez Ventura, on a visit to El Hierro, accused of insufficient support from the state governments canary and the victims of La Restinga, while called for transparency and consistency in the information provided on the evolution of volcanic phenomena.

[fifi]

Showing the distance from the Pier..

[jand]

Thanks Fifi that really show how close it is to the pier and coastline.

Sods law you post that and it has disappeared!!!

[fifi]

The webcam is working for me but is buffering at the moment jand. Keep trying and it will connect.

Largest earthquake so far today 3.1 on the Richter scale.http://www.ign.es/ign/layoutIn/volcaDetalleTerremotos.do?evid=1112302&zona=2

[jand]

Quote from jonfr.com/volcano

Andy Scollick says:

 November 13, 2011 at 13:03


@Lurking,

Having been glued to various blogs, forums and social media sites about El Hierro, believe me when I say there are many, many folks around the world who (generally silently) not only appreciate your data visualisation and presentation wizardry, but positively look forward to it and benefit from it: on the basis that it is their visual key to understanding an otherwise complex conceptual and alien "scientific" language. This is especially important to inhabitants of the Canary Islands right now, given the growing uncertainty and risk in the region. So, for their sakes (and there must be thousands of them), please don't stop!
I also note a tendency for certain institutions to adopt your methods of presenting data, and quietly add it to their websites as if they had come up with the idea

As for those apparently bad-mouthing the online community of volcano/science amateurs (and experts who lend their time now and then) even if offence was not intended, they should remember that science has an unwritten contract with society: we do science so that society can benefit, which is why society funds our efforts. "Don't bite the hand that feeds you!" All scientists (including me) have a responsibility to the society within which we operate and to who we serve. That means both participating in social mechanisms, and removing the barriers to participation in science.

[jand]

Have signed into the webcam looks like a boat is circling now the area you marked Fifi.

[jand]

Copied from Avcan.

The Ramón Margalef ship in the area of the rash.

http://img39.imageshack.us/img39/9207/image35i.png "The eruption of bubbling" http://img843.imageshack.us/img843/4092/image37gz.png by the way, has that be releasing much gas, as you can see the Green Sea, on the other hand is a Brown, black color of the eruption.
 The bubbling to begin about 11: 30 http://hierroendirecto.movistar.es/

[jand]

SUMMARY OF THE SISMO#8208;VOLCÁNICA ACTIVITY IN EL HIERRO
November 13, 2011
During the November 12:
Tremor
The tremor did frequent pulses of short duration (minutes) throughout the day yesterday, without major changes in the amplitude of the tremor of Fund. In the analysis of seismic data do not appear evidence of a second source of tremor in the North.
Seismic events
During the November 12, 2011 24 earthquake, two of them felt by the population without intensity allocated so far have been located.
The largest of events happened has been registered at 15: 59 h (UTC) with magnitude 3.1 on the Richter scale and felt by the population, located to the NW of the town of border, 3 km from the coast and 19 km of depth.
The rest of registered events are located in the area of El Golfo (municipality of border), aligned NNW#8208;SSE from the sea to the center of the island forming two distinct groups, the first between the 15#8208;17 km and the second between the km 20#8208;24.
Felt earthquakes:
10: 55 Depth 16 km, direction, magnitude 2.8
15: 59 Depth 19 km, direction, magnitude 3.1
In total, since 17 July 2011 have been localized 11522 events.
(Data updated to the 0: 00 UTC)
Deformation
The deformation monitoring stations located on the East side of the Gulf show a slight tendency towards the Southeast in the last week, losing northward deformation accumulated from the beginning of the eruption. In the rest of stations is maintained the pattern of deformation of the last days.
Stain:
During the day it has been observed clearly the head of the eruption, not observing material fine or burbujeo.

[SurfJames]

I'm connected - and there's a car driving around the town! Quick arrest him; he's possibly trying to steal volcanic lumps to sell on ebay!

Cannot see the jacuzzi or the brown stain.

[fifi]

The jacuzzi was where the dark line in the middle was. I think we might need helicopter photos to show the true colour of the water in the area.

[jand]

SurfJames

The black line that hopefully you can see maybe is the brown stain they are talking about.

[SurfJames]

Arh yes - can see it clearly now and it's massive! It just suddenly formed, frstly as a white ring and then darker.

[jand]

http://www.01.ign.es/ign/resources/volcanologia/html/informesHIERRO.html

This is something new that IGN have added a daily update if you click into a date there is an update what has actually happened in that day.

You will have to translate into English.

[jand]

Rescaling of the harmonic tremor graphs
 A lot of people reading the IGN graphs are sometimes asking themselves why the graphs are suddenly changing in height. Besides the action of the volcano itself, the IGN volcanologists and seismologists have to change the scale a little if the graph lines are constantly reaching the ceiling of the scale. This rescaling can mostly be seen by the blue (thin or thick) line showing up in the frequency part of the page.
 So, please be sure that rescaling is purely done (stronger and weaker) to obtain the best possible view on what is happening.

http://earthquake-report.com/wp-content/uploads/2011/09/eh-13112011-1.jpg
A comment from a reader worthwhile pasting it here : Rescaling of the IGN graphs has been a recurrent issue  lately. Please note  that when rescaling of the graph for El Hierro is actually done, then the Graphs for all the other graphs of IGN stations  in the Canary Islands will continue unchanged, as due to the lesser signal they are smaller in size anyway. The last two suspected rescalings however showed a decreased signal for  the neighbouring islands as well. So I conclude that in this case NO rescaling was done and that the harmonic tremor suddenly decreased. Please compare the graphs before alleging a rescaling.

[SurfJames]

There's a boat going around the Jacuzzi....it's Pedro.

What a brave chap.

[SurfJames]

If the cone is getting bigger again, and I understand that it needs to get considerably wider in order to get higher, does anyone know how far it is from the surface of the water now?

Once it gets close to the surface, then the activity will change as explosions will force rocks etc into the air. When it's above the surface, then I guess we will see lava pouring back down to the water again.

Have measurements been made as to it's height at the moment?

[jand]

http://www.01.ign.es/ign/layoutIn/volcaDetalleTerremotos.do?evid=1112304&zona=2

The last earthquake was at only 15km .

[jand]

http://www.01.ign.es/ign/resources/volcanologia/jpg/energia_HIERRO.jpg

Pressure just jumped to 3.2.

[jand]

www.jonfr.com/volcano


http://rsta.royalsocietypublishing.org/content/364/1845/2073.full

This is a good article that tells us the diff between types and sizes of eruptions and the power that they generate.

Light reading Judith. Bottom line is that if this continues and it finds a way into the islands internal system without releasing, its likely to go off like a bomb.

Most of the time a volcano builds a dome and goes to sleep. Indeed that might have happened here in El Golfo after it built El Hierro. Erosion obviously took place because you can see the perimeter of several large rims, and look at the edges of the rock falls. Very interesting in that they are shear like you would expect from a dome failure.

And with most of them the new activity starts with the rims and on the edges of the old dome inside. Did that happen here?

The edge of the old dome is the beach area of El Golfo. Not much of a beach but a lot of indication that it is the old dome, just eroded by the ocean. Its also where the rock slides have been occurring. Is it breaking rock and causing the falls? Is it tremoring and causing weak points to fall? Or is it invading tubes below the mountain and looking for a way out? Not sure on any front.

Making a lot of noise though.

Either way I think we are heading towards a multi-year eruption with this and with all of the usual racket generated by a volcano being born. This one is a bit different in that at some point there is going to be a huge landslide IMO. Big enough to generate a tsunami is the question. It might go and then be stopped by the new dome formation... One could only hope.

If you have been following Lurks plots, there seems to to be two distinct chambers. The one to the SE I think its being fed from the lowest one to the SW, moving laterally into weaker territory around Resting -Bob Maximus, with the main show really going to be in El Golfo-Bob Minimus later on this year or early in the next. It simply has a lot of capacity and its not terribly full of material but its getting that way fast. Really what are we seeing at Restinga? Raise that chamber there up 1 mile and you have a new island. Its almost the width of the SE wing of Hierro now. About the same diameter, vertical size. Then the deeper west wing raised to the surface is about the size of El Golfo as it once was thousands of years ago. So, I am betting that we might get a huge show out of this one.

All in all we might be astounded later on by what starts to happen

[jand]

This is the R. Margalef's route today and yesterday – is that what it looks like when a ship is doing sonar mapping? If yes, we will soon see new pictures of Bob and the seaground.
 http://i41.tinypic.com/11ju1cz.jpg
 The Punta Salinas has been doing similar lines on a few days last week parallel the east coast of El Hierro, They might be mapping there as well.

[SurfJames]

jand...this makes worrying reading. It suggests that the island itself might become uninhabitable due to an erruption on its surface or massive landslides into the ocean.

Lets hope that the volcano caps itself off and goes to sleep for aother million years or so. Humans would have long become extinct when it next errupts!

[fifi]

The video below was sent to AVCAN today. I usually find a lot of these American reports over the top and scaremongering but this one caught my attention because of the fact that radiation levels are being monitored at the moment. I think I will email and find out more information about it. Its worth a look.

Nuclear waste dumping in the sea near the Canary Islands and the volcano.

 http://www.youtube.com/watch?v=-FQRH99mJYw

Radiation levels being monitored and will continue to be monitored for the coming few months in El Hierro. (article posted a couple of days ago)

http://www.diariodeavisos.com/2011/10/20/actualidad/radiacion-en-la-base-del-sismo

[jand]

Translated from laprovincia.es

The movement of magma triggers the signal of alarm in the volcano in El Hierro

The 'ROAR' of material intensifies during the day yesterday and scientists believe that they may be occurring underwater explosions in the South, at La Restinga. In the North, the deformation pushes from the sea towards land


PEDRO GUERRA "haven't seen you tremor signal today, it seems the face of the devil". One of the scientists located at the foot of the volcano in El Hierro answered so average late yesterday asked if the day had elapsed with normality. But although on the surface of the island building the Islanders were unable yesterday live a day relatively quiet, deep magma moving by at least two different eruptive foci fired all alarms in the gauges that keep the iron completely monitored from months ago. The tremor signal yesterday showed "a great movement of magma", according to confirmed Carmen López, responsible for volcanic surveillance of the National Geographic Institute (IGN), who yesterday joined the control of the volcano on the island of the Meridian after some days of rest.


Because if the land the Islanders had a seemingly quiet day, both in the South, where the striking bubbling generated by explosions of ash at the beginning of week disappeared almost completely yesterday, as in the North, where after the 4.6 earthquake on the scale Richter occurred at dawn on Friday gave way to a continuation of earthquakes of smaller magnitudeAlthough persistently, deep magma was moving with virulence in the South and pressed with strength in the North. This is so in La Restinga is believed to a rate of magmatic material rather than the last few days is kicking off at the moment and in border deformation has experienced considerable growth in the last four days of volcanic activity fruit of the thrust of the magma from the Earth's crust which direction is North-South, i.e.It pushes in oblique from the sea towards the island. So much so that on border scientists not is separate of seismographs 24 hours a day, before the presumed appearance of earthquakes which region the five degrees of magnitude on the Richter scale.


The signal of tremor, the vibration that produces the movement of magma in the depths, did not stop to grow throughout the day and also showed intermittent pulses as he had never done in the almost four months of seismic crisis. This, according to scientists, is compatible with underwater explosions may be occurring in the eruption of the fissure of the South, at La Restinga, on the calm sea.


And although maybe you predictions about what can happen to fail, the scientists are preparing for important developments in the volcano in El Hierro, especially in the North, where the management of the emergency, with four thousand inhabitants in border, it would be much more complicated that in La Restinga, which has been evacuated in two occasions neighbors without major problems.


Within the earthquakes that occur in the North, scientists are still detecting two magma movements which may be different: one of them varies between 20 and 25 kilometers deep and those of greater intensity; the other runs between 10 and 15 kilometers under the Earth, and they rarely reach magnitudes exceeding three degrees on the Richter scale. As a whole, up three eruptive scenarios could live currently in El Hierro.