Tirelessly updating Avalon on the El Hierro eruption.

[Hervé]

Strongest so far (no data): CHIE station has been knocked out of service since 19:47 yesterday... back on 11:55

For the day:

Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia: A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

How is El Hierro looking like, now:

(Click on picture to go to webcam page)

Refresh your browser to get the latest traces

For the last 10 days, it now shows whatever Polly is up to as far as seismic activity is concerned:

(Scale for ½ earthquake still cracks me up… : )

Since the beginning

New cumulative graph starting October 10, 2011. The continuously changing scales keeps compressing the earlier graphs to the bottom and to the left!

Location of the EQs for the last 10 days:

Since the beginning

Refresh your browser page to get the latest numbers and positions.

The harmonic tremor is on-going and sustained which simply means the same for the under water volcanic eruption.

Not much else can be said or speculated about it.

The only question is whether or not the volcanic cone will surface before the graphs go flat with no renewed earthquake activity?

[Hervé]

From space today:

Terra




Aqua

[Hervé]

Strongest so far (no data):

For the day: :



Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia:A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

See top of page for the other auto-updating diagrams

[Hervé]

Polly's definitely not given up on smoking:

... this morning around 10 am.

[Hervé]

Smoldering fragments located in the emission area on Saturday

SPECIAL SEISMIC CRISIS - 31/12/2011 (16:35 pm)

The volcano again expelling large pyroclastic

DIARIOELHIERRO.ES, writing (31/12/2011. 16:35 pm)
The volcano of El Hierro continues to emit large steaming magmatic material, as they could check on the morning of Friday, scientists from the National Geographic Institute (IGN) from the Maritime Rescue boat Salvamar.

Since Thursday the emission was intensified in the header area where bubbling and fine material was observed. In addition, the green part was very definite throughout the day.

The report of the mission Sasemar 103, notes the observation of three very small emission areas and the corresponding material drift the south due to sea conditions and prevailing winds. Emission points in the water temperature was 17.5 ° C, while the nearest clean water temperature was 19.6 ° C.

TREMOR

During the day yesterday, Friday 30 December, the tremor signal recorded by the seismic monitoring network throughout the morning kept the same level reached the previous day.

However, slightly increased its amplitude at 09:30 hours, coinciding with the emission of lava fragments on the surface and an energy pulse was also observed throughout the day. This level was maintained for the day with slight fluctuations.

On Thursday, the tremor signal recorded by the seismic monitoring network maintained the level achieved the previous day, detecting some small pulses of short duration and slight fluctuations.

Although the signal tremor has a low amplitude, its presence in the record is confirming continuity of the eruption.

Moreover, in terms of seismic activity located in El Hierro, Thursday and Friday, IGN posted a total of 6 events of low magnitude, although none of them was felt by the population. On Friday three movements were detected at a depth of between 16 and 20 kilometers two of which were located in the area of ​​the Gulf, one at sea and one on land, the third also on land west of the town of El Pinar .

On Thursday, three events were recorded at a depth of between 14 and 16 miles, two of them located in the El Julan, of magnitudes 1.4 and 1.5, and another near La Restinga which reached 2.3 degrees of magnitude.

In total since July 19, 11 949 events have been detected.

DEFORMATION

Stations monitoring deformation showed a slight tendency towards the north in the horizontal components yesterday in the Gulf stations. For the rest of the island, the vertical components remained unchanged

[Rocky_Shorz]

after all the work you've done tracking this as the Island appears, we should name it after you...

Isle of Amzer Zo

[Hervé]

Thanks for the thought Rocky, and welcome back to the active member lot

Not sure such island will ever emerge, all I can gather is that since there is no indication of ground deflation it indicates that there is still a lot of magma in store...

[Rocky_Shorz]

has anyone done tests of what the breakdown is of the Lava gas emissions? It gives an indication of how long it will continue...

[Hervé]

Doesn't give much in terms of duration since it is still on-going... see this post

The only reliable indication of things quieting down is that, currently, the ejected lava floats contain 35% crystallized material.

[avid]

Thank you sooo much Amzer Zo, this has been a rollercoaster literally, Happy New Year, and although things were very exciting and frightening, hopefully there WILL be a little new island dedicated to you!!! Then hopefully that 'indigestion' in the area will calm down for many years to come....
All the best
Avid

[Hervé]

From space on the 31st of last year:

Aqua:

Terra:

[Hervé]

HAPPY NEW YEAR TO EVERYONE AND ALL!
MOST ESPECIALLY TO AVALONIANS -- MEMBERS AND FOLLOWERS!
... and to
RANDLES!

Strongest so far (2.5 at 04:53):

For the day: :

Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia:A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

See top of page for the other auto-updating diagrams

[Hervé]

Strongest so far (no data):

For the day: :



Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia: A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

See top of page for the other auto-updating diagrams

[Daughter of Time]

And Happy New Year to you Amzer Zo! Thank you for your dedication.

[Hervé]

... then, to start the New Year... my internet connection went by the boards...

Anyone left around?

Meanwhile...

***

Thank you to the more than 80,000 viewers who support this thread!

Since July, IGN has officially logged 12,032 tremors at El Hierro... and still counting since the seismic activity is picking up again!

Thank you for your support and for dropping by!

Thank you.......

[Hervé]

Anyway... Here's for today as I have a lot of catch-up to do:

Strongest so far (no data):

For the day: :

Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia: A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

See top of page for the other auto-updating diagrams

However, from what I gleaned around, the Jacuzzi is still bubbling, the Restingolitas are still steaming while keeping surfacing; all this in spite of a sputtering harmonic tremor.

[ViralSpiral]

Posted by Amzer Zo (here)

Anyone left around?

and

.
.

THANK YOU!!!

[loc333]

hello amzer zo, and viralspiral ,this is a great thread. I got it somewhere that things are picking up at el hierro...hope not ..

[Hervé]

Yep!

School of Restingolitas learning how to stay afloat:

From Joke Volta through Earthquake-report.com

[Corncrake]

So good to see you posting again Amzer Zo though I am sorry Polly hasn't gone back to sleep!