El Hierro

[jand]

http://www.avcan.org/index.php?m=Mapas&a=mapa&mf=2121

Here's the map of distribution of the seismic energy released, also in this period of the first 11 days of November:

As you can see, the seismicity of November is well focused on the submerged area of El Golfo. (Victor)

[kevin2003]

quote:Originally posted by kevin2003


I do think the thread would improve immeasurably if both you and Jand could summarise in your own words the main point of the post and then just paste the link to the source.It would make the thread much easier to read.Just a suggestion.......

[fifi]

The Cabildo de El Hierro and Telefonica-Movistar will present their webcam with a viewing for the media at 13:30. No link given yet.

[jand]

http://elhierroenlared.com/webcams-el-hierro/

Someone posted this link also to a webcam at Gran Gran looks like they are  having strong waves up to the edge of the promenade  dont know if this relates though to the earthquakes in El Hierro

[fifi]

Thanks jand. That is the Youstream one.The link might be posted on that website you have shown later. The Governments one may have a better view although they are supposed to have a lot of rain which may impair visibility.

[jand]

Avcan FB

does anyone knows anything about the bubbling to supposedly be viewed near the pier?
11 minutes ago · Like · 1 · Original

[kevin2003]

quote:Originally posted by jand


does anyone knows anything about the bubbling to supposedly be viewed near the pier?

[IsThisForumStillGoingWow]

Knowing jand was pretty new to forum I just checked her posts...done 6 before the volcano thingy..now done 437...and as there has been 937 posts on here I work that out that jand has done 431 of these posts..well done jand, nearly 1/2 the posts on this thread are all yours [][]

[jand]

DURING just the press of the PEVOLCA Conference. According to Canarias7: Scientists believe that you increased the likelihood that an underwater eruption will occur in the area of the Gulf, North of El Hierro, advises Rosa Rodríguez. According to the Pevolca, seismicity and deformation of the Earth has increased in the northern part.

[jand]

Translated from Avcan FB
IGN has confirmed at a press conference that WINS weight the possibility of an eruption in the Gulf without discarding it may be on the ground. Likewise, scientists have argued that there will be more earthquakes of equal or greater magnitude of which occurred this morning (4.6 degrees) at border.
Will k if or if they acertaran... or sea or is on the ground... because in impossible heaven... yet I remember the words at the meeting in Los LLanillos de Santana Mr and Mrs. Mª José Blano of IGN saying k produce a rash in border would be an underwater eruption and more than 1000m depth... will continue filling the Predictor game... or we have a pinch or we have fat... will will be k IGN continues blind sticks?.. .estamos more informed by AVCAN, and we will see k says Henry... but eye follow attentive and outstanding authorities releases

[jand]

http://212.170.244.196/

New Live El Hierro Webcam.

[jand]

eartquake-report.com
Update 11/11 – 13:19 UTC
 - Diario de Avisos writes that IGN scientists have confirmed that an eruption in the El Golfo area is possible and that an eruption on the coast itself cannot be excluded. To make this happen, more powerful earthquakes are needed to allow the magma to the surface.
 - Scientists have also said the the eruption in the La Restinga, Las Calmas sea area is still continuing although almost nothing can be seen on the surface.

[jeffh]

That'll be 8 moaning now.

This is a volcanic eruption - there could be hundreds of years worth of this drivel.
Get a life.
The webcam's also a waste of time.
Most of the views are "Fruit" and "Nut" looking to see if the other has posted.

Can we not have a forum just for this?
As they say on Dragon's Den - "I'm out."

I'm going back to watch if the grass is grow. I just saw a new blade!.
Watch this space.

Look! There's another one!!

[fifi]

quote:Originally posted by jand

eartquake-report.com
Update 11/11 – 13:19 UTC
 - Diario de Avisos writes that IGN scientists have confirmed that an eruption in the El Golfo area is possible and that an eruption on the coast itself cannot be excluded. To make this happen, more powerful earthquakes are needed to allow the magma to the surface.
 - Scientists have also said the the eruption in the La Restinga, Las Calmas sea area is still continuing although almost nothing can be seen on the surface.

 It was confirmed by the Ramon Margalef on 3rd November that there was a fissure in the North which was producing magma ....http://www.youtube.com/watch?v=Biav5ESZdOU&sns=em

The helicopter also surveyed the area on 1st November and showed the stain....http://www.youtube.com/watch?v=h5AW3lbFO5M

Are they denying it existed or did it seal itself off?

[Florence]

quote:Originally posted by hev

Knowing jand was pretty new to forum I just checked her posts...done 6 before the volcano thingy..now done 437...and as there has been 937 posts on here I work that out that jand has done 431 of these posts..well done jand, nearly 1/2 the posts on this thread are all yours [][]

I sometimes feel that this is a thread for jand to have a conversation with herself.  A conversation that gets herself very worked up indeed.  This is an interesting subject but it has been taken over and dominated by one individual who doesn't care for constructive critisism from other people and who would like up to date "facts". I could do without comments about magma moving in other Canary islands, birds disappearing and earthquakes in Fuerteventura - the earth did not move for me the other day!  I can still see lots of birds and my cat is quite unconcerned.

[jeffh]

Can we count you as 9, Florence?

Scientists have also said the the eruption to the east of La Restinga, has just started, although almost nothing can be seen on the surface, underneath, or even detected by any scientific instrument.
Just thought they should get ahead of the game.

[kevin2003]

quote:Originally posted by jand

....will be k IGN continues blind sticks?.. .estamos more informed by AVCAN, and we will see k says Henry... but eye follow attentive and outstanding authorities releases

[fifi]

Tweets from official sources.


Earthquakes higher than 4.6 on the Richter scale are now expected according to the Scientific committee. This was previously ruled out as a possibility by them.

                       ..........



Telefónica and the Cabildo are working on the possibility of putting a webcam in other areas to transmit the volcanic evolution .
"It will improve  the important task of ensuring the safety of people," said the President.

[jand]

Jeffh

http://212.170.244.196/

If you actually knew some language of Spanish you would have realised this link is actually two webcams one showing the view of La Restinga and the other one shows a close up of the actual erruption site.

[jand]

Quote by Jeffh

The webcam's also a waste of time.

Not everyone seems to have the same opinion!!!!


The La Restinga webcam part 2
 We are really euphoric at earthquake-report.com to see the the nice pictures now.
 We truly think we owe a BIG THANK YOU to a number of persons who have been pressuring the local authorities to do something about it like JOKE VOLTA and the LasPuntas geologist and also member of the board Mr. ATILANO.
 Joke started a couple of weeks ago to look for an urgent solution. As Mr. Atilano had already a webcam at the El Golfo area and knew something about the technology, it was obvious that Joke started to ask mr. Atilano on here naked knees (a proverb in Europe) to also install a webcam at La Restinga. She also talked to almost everybody in El Pinar who could influence a decision to install it and/or to pay for it.  Many promises were made and not followed. She started to become sarcastic about it, but she kept faith that it would arrive after all.
 We also owe a big thank you to the many readers like Jorrit, Ingrid, Angie, Hans-Werner, etc (i am forgetting surely a number of other people) who proposed to help in setting up websites, hosting servers,  sending equipment, etc.
 The webcam today is not only the work of those who made it work, but also because of the efforts of many people (also other local people who believed in it).

[fifi]

You learn something new every day. This is how predictions of the size of future earthquakes are made.[]

http://www2.topografia.upm.es/grupos/sismo/MDifusion.php?mdif=10%2Fparametro-b

It is called The Gutenberg-Richter law and is based on the law of reocurrence. It establishes a ratio between the number of large and small earthquakes in a given area.

The graph above is  the Gutenberg-Richter line that best fits the complete catalogue of earthquakes in El Hierro. Im presuming that this is how the new prediction of earthquakes larger than 4.6 on the Richter scale was made.

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

The radiation  (radioactivity)levels on the Island are being monitored and will continue to be monitored for some time.When these elements are concentrated in poorly ventilated places such as caves, galleries, wells, or even in the basement of buildings they are damaging to health.
http://www.diariodeavisos.com/2011/10/20/actualidad/radiacion-en-la-base-del-sismo

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

The head of IGN  emphasized that the earthquakes so far, and those expected to occur, do not have enough power to cause damage to homes which are in good condition. Source.. Diario de Avivos .com

[kevin2003]

quote:Originally posted by jand

If you actually knew some language of Spanish you would have realised this link is actually two webcams.....

[Paddster]

jeffh
Frequent Contributor



United Kingdom
300 Posts
 Posted - 11 November 2011 :  15:36:07
--------------------------------------------------------------------------------

That'll be 8 moaning now.

This is a volcanic eruption - there could be hundreds of years worth of this drivel.
Get a life.
The webcam's also a waste of time.
Most of the views are "Fruit" and "Nut" looking to see if the other has posted.

Can we not have a forum just for this?
As they say on Dragon's Den - "I'm out."

u]I'm going back to watch if the grass is grow. I just saw a new blade!.
Watch this space.

Look! There's another one!![/u][


PMFSL......................[:p][:p][:p][:p][:p]

[jand]

Update 11/11 – 17:54 UTC
 - Providing that the harmonic tremor scale hasn't been rescaled by IGN,  we notice a difference in strength and frequency since 15:30 UTC (see below). Joke, overlooking the vent area, nor the people looking at the webcam have noticed any change in the sea surface.

http://www.01.ign.es/ign/head/volcaSenalesAnterioresDia.do?nombreFichero=CHIE_2011-11-11&ver=s&estacion=CHIE&Anio=2011&Mes=11&Dia=11&tipo=2

[jand]

DESCRIPTION OF THE TYPE OF MAGNITUDE

Earthquakes in the area of the Iberian Peninsula and Canary Islands

1 MD (M-MS): magnitude for length (Mezcua and Martinez Solares, 1983). Used for earthquakes between 1923 and 1961. The formula used varies depending on the station where the earthquake is recorded.

TOLEDO: MD (M-MS) = 1.67 log D + 0.001 #916; - 0.2
ALMERÍA: MD (M-MS) = 1.22 log D + 0.001 #916; + 1.20
ALICANTE: MD (M-MS) = 1.44 log D + 0.001 #916; + 0.95

Where D is the duration of the register in seconds and #916; the distance in kilometres epicentral.

2 MbLg (M-MS): magnitude from the amplitude of the phase Lg (Mezcua and Martinez Solares, 1983). Used for earthquakes that occurred between 1962 and March 2002. The formula used for each row depends on the epicentral distance #916;.

MbLg (M-MS) = log (A/T) + 1.05 log #916; + #916; < 3 º 3.90
MbLg (M-MS) = log (A/T) + 1.66 log #916; + #916; > 3 3.30

Being A and T the amplitude in micrometers and the period in seconds of the most sustained wave train Lg and #916; the distance epicentral in degrees.

3 mb (V-C): extent of internal waves (Veith and Clawson, 1972). Used for earthquakes since 1998. This magnitude is given by:

MB (V-C) = log (A/T) + P(#916;,h)

Where A and T are the amplitude and period of the phase P and P(#916;,h) is a correction factor of dependent on the depth and the epicentral distance tabulated for distances between 0 ° and 100 ° (Veith and Clawson, 1972).

4 mbLg (L): magnitude from the amplitude of the phase Lg (López, 2008). Used for earthquakes since March 2002. This formula of magnitude has been referred to the formula of local magnitude of Richter (1935), so that for a period of 1 second two scales coincide at a distance of 100 km reference. The mathematical expression of this magnitude is given by:

mbLg (L) = log (A/T) + 1.17 log R + 0. 0012R + 0.67

Where A is the amplitude of the displacement in #956;m, T the period in seconds and R the distance hipocentral km.

5 Mw: Magnitude (Hanks and Kanamori, 1979) moment whose expression is given by:

MW = (2/3) logM0 - 10.7

Where M0 is seismic moment climbing dyn·cm.

Based on the method of Dreger and Helmberger (1993) implemented in the National Geographic Institute (wheel and Mezcua, 2005).








Earthquakes in the world


6 MLv: Local magnitude estimated at vertical component, using a correction to adapt to the standard ML of Richter (1935).


7 mb: magnitude of internal waves measured in records after applying a Butterworth filter with frequency corner of 0.7 and 2 Hz, using the formula of Guttemberg and Richter (1956).


8 mB: magnitude of internal waves measured in records of broadband (Bormann and Saul, 2008).

9 Mwp: Magnitude measured in P-wave (Tsuboi et al., 1995).

10 Mw (mB): estimation of the magnitude now Mw based on the magnitude mB. (Bormann and Saul, 2008).

11 Mw (Mwp): Estimation of the magnitude now Mw based on the magnitude Mwp (Whitmore et al., 2002).

[fifi]

Because of the 4.6 earthquake today and the likelihood of stronger ones to come, and also  deformation in the seabed in the North which was mapped by the Ramon Margalef, it is expected that there will be an eruption in the North (El Golfo area where there has already been huge landslides into the sea) and also possibly on land. The eruption areas in the South are still producing gas bubbles so are still active. Some areas have had landslides.(Various newspapers)

              ..............

A new eruption is expected shortly in the Restinga area according to AVCAN

[jand]

Looks like something is starting to happen again.


http://www.01.ign.es/ign/head/volcaSenalesAnterioresDia.do?nombreFichero=CHIE_2011-11-11&estacion=CHIE&Anio=2011&Mes=11&Dia=11

[jand]

http://www.youtube.com/watch?v=PcG0fDra01I

Update 11/11 – 18:54 UTC
 - The Politolana ROV on board of the Oceanographic Ship Ramon Margalef has made a number of video recordings. The video shows the seabed and observes the remaining marine life. The first part has been recorded at 6 km distance from the vent and at a depth of 150 to 220 meter,  the second part  at 2 km from the vent and at a depth of 235 to 370 meter and the last part at a distance of 1 km from the vent, a depth of 200 meter and 480 meter above new lava layers. The visibility was 80 cm.
 The gap between the 2 green laser lights is used by the scientists to calculate the size of what they are observing.

[jand]

Fifi

Looks like the possibility of an erruption in the north you posted earlier has also been confirmed on TV

To sum up both national newscasts as TV-Canaria and the Prevolca take nearly for confirmed the possible eruption in the North of the island. Congratulations on the AVCAN team, while the consequences of it depending on whether it is underwater or not, they will be different. Already in this forum we have been handling this scenario for the last 15 days or more. And then to say that we are not valid partners. I'm not saying I, the world upside down. I believe that now is the time remain attentive to the situation, take the precautions that are possible with new earthquakes of equal or greater intensity to the night, continue to share in this network that are experiencing and with the help of all go under this new process which I hope does not cause irreparable damage to those who inhabit this small but noble land of El Hierro.

[jand]

Still lots of movement and spikes

http://www.01.ign.es/ign/resources/volcanologia/CHIE/imagenes_sismica/HORA_SP/CHIE_2011-11-11_20-21_sp.jpg