El Hierro Volcano activity report

Last update: January 2, 2016 at 10:11 pm by By

This is the most recent El Hierro Volcano eruption report You may follow also Facebook Volcano Page - Google+ VolcanoesTwitter : @VolcanoReport With the collaboration of Joke Volta, an El Hierro resident and Julio del Castillo Vivero, photographer. Read also:  links to all 59 prior parts of this eruption report please go to the bottom of this page Read also: The 2011 submarine volcanic eruption in El Hierro (Canary Islands), Spain Useful links  : @VolcanoReport  -  Picasa Photo Album  El Hierro Webcam (only 1 active) :  Frontera-SabinosaFrançais - Nederlands - Español - Japanese (automatic translations) THIS PAGE WILL REFRESH AUTOMATICALLY EVERY 10 MINUTES, KEEP IT OPEN IN A BROWSER TAB 


Many thanks to all the people (among them a lot of volcano lovers) who have send us donations. May we ask the people of El Hierro, reading this page, to use our I HAVE FELT IT form when they feel the current earthquakes. The way you feel it will give us some additional information on what is going on (written on December 22 at 19:46 UTC). Click on this I HAVE FELT IT link. You can write in your own language.
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2016-01-02 21:30 UTC
Happy 2016 for all those coming to look around the corner now and then.
It has been rather calm lately. Recently only the earthquake below was worth mentioning but that is already some days ago too.

Screen Shot 2016-01-02 at 22.27.18

2015-12-17 09:13 UTC
2 new earthquakes . The first one a strong one at 34 km depth with a Magnitude of M3.2 and the second one a M2.2 at a depth of 30 km. The second one has approx. the same location as the first one (see map below). Something is happening down there but to be honoured as a new crisis, the number of earthquakes should increase considerably. Also to be said is that in that specific area, the magma was not able to break through the rock layers above, not even with very strong earthquakes.

Screen Shot 2015-12-17 at 10.07.55

2015-12-16 17:39 UTC
A M2.4 at 30 km depth earthquake earlier today (see google map for precise location epicenter). As you can see below, the same area than the earthquake 2 days ago.

Screen Shot 2015-12-16 at 18.37.30

Screen Shot 2015-12-16 at 18.40.42

2015-12-14 12:32 UTC
An M2.0 earthquake at the below location. No depth reported

Screen Shot 2015-12-14 at 12.51.23

2015-12-13 19:19 UTC
2 new earthquakes with only 1 minute difference. The strongest one west of the island but gradually the picenters are heading north.

Screen Shot 2015-12-13 at 20.14.23 Screen Shot 2015-12-13 at 20.15.13

2015-12-11 17:02 UTC
2 new earthquakes off the South Western coast of El Hierro. Both at a depth of 33 km (same depth as most of the previous quakes in that area)

Screen Shot 2015-12-11 at 17.57.45 Screen Shot 2015-12-11 at 17.58.14

2015-12-09 23:37 UTC
We have not forgotten about El Hierro but no more earthquakes since Sunday

2015-12-06 12:52 UTC
2 new earthquakes in the deeper zone South-West of the island (29 to 35 km). A shallower series in the 20 to 25 km range would be a significant change.

Screen Shot 2015-12-06 at 13.51.27


2015-12-04 19:37 UTC
Thats a while ago. A relatively strong earthquake in the new cone eruption area. To follow up the following days and weeks.
Magnitude 2.8 at a depth of 12 km.

 

Screen Shot 2015-12-04 at 12.07.27

Image courtesy IGN

Screen Shot 2015-12-04 at 12.19.53


2015-11-28 19:37 UTC
A new one today but again at a depth of 30 km. M3.0 is relatively strong

Screen Shot 2015-11-28 at 20.32.45

2015-11-28 12:11 UTC
An earthquake to follow up. M2.7 BUT at a depth of 22 km (almost all of the other earthquakes in that area were at a depth of +30 km) right on the western tip of the island. Especially the depth is interesting. The earthquake can be based on an intrusion or can be the result of the stress of the volcano itself. The near future will give us the answer.

Screen Shot 2015-11-28 at 12.59.35


2015-11-25 13:14 UTC
Contrary to what we expected during the earthquakes from last week, the western tip deformation station HI05 showed a slight deflation instead of an inflation.

Screen Shot 2015-11-25 at 14.13.33

2015-11-25 10:25 UTC
No more El Hierro earthquakes since Sunday


2015-11-22 23:30 UTC
A second M2.2 at 30 km earthquake today @ 17:18 UTC - Same epicenter area

2015-11-22 14:01 UTC
3 earthquakes so far today in the Canary Islands area however only 1 can be linked to the activity below El Hierro. Magnitude : 3.1 at a depth of 33 km.
The quakes we are describing are happening in the same direct area and all at an approximate same depth. Also they are relatively powerful. Some of them are felt by the islanders.

Screen Shot 2015-11-22 at 14.55.54


2015-11-21 09:08 UTC
New M2.3 @ 35 km depth earthquake to the West of Frontera. Too soon to say for sure that magma is rising again but the least we can say is that the the indications are going in that direction


2015-11-20 20:15 UTC
New slight earthquake but nevertheless in exactly the same area and at the same debt that the November 18 ones.
In 2014 this particular area got very strong earthquakes but the magma underneath was not able to break to a much more shallower depth.

Screen Shot 2015-11-20 at 21.14.00

2015-11-18 21:45 UTC
4 earthquakes yesterday and nothing so far today. Flat graphics

Screen Shot 2015-11-19 at 18.33.00 Screen Shot 2015-11-19 at 18.33.36

2015-11-18 21:45 UTC
Time to follow up the earthquakes and activity again.

Screen Shot 2015-11-18 at 22.49.31
Screen Shot 2015-11-18 at 22.49.59


2014-12-09 10:07 UTC


2014-12-03 17:49 UTC
Seismicity almost completely stopped the second part of November

Images courtesy and copyright IGN Spain

Images courtesy and copyright IGN Spain

Screen Shot 2014-12-03 at 18.46.32 Screen Shot 2014-12-03 at 18.46.52 Screen Shot 2014-12-03 at 18.47.10

2014-10-06 14:38 UTC
Seismicity since the last update.

Screen Shot 2014-10-06 at 16.32.58


2014-09-25 12:54 UTC
El Hierro may be dormant for a while, but the earthquakes (even weak) are continuing below the island. Just waiting for another crisis and/or eruption. Iceland shows today what partly happened on El Hierro in the Las Calmas sea, a short-lived fissure eruption (remember the many whirlpools along the coast at the time of the eruption).

Screen Shot 2014-09-25 at 14.56.39 Screen Shot 2014-09-25 at 14.57.08


2014-09-03 23:01 UTC
This evening people on the island felt an earthquake since long time. A M3.8 off the coast at the western side of the island was responsible for this. NO specific tremor on the graphs. Depth 16 km is still very deep.

Screen Shot 2014-09-04 at 01.00.35 Screen Shot 2014-09-04 at 01.01.02

2014-08-26 15:09 UTC
We are sorry not to have posted more information on El Hierro, since late July. A lot of earthquakes in the world and now recently the Iceland Bardarbunga volcano are part of the reason. Here is the list of the El Hierro seismicity over the last 28 days.

Screen Shot 2014-08-26 at 17.12.11

2014-07-28 11:09 UTC
Nothing spectacular the last couple of weeks. If a sudden revival would happen we will jump in with a new information stream of course.

Screen Shot 2014-07-28 at 13.06.47

2014-07-05 13:34 UTC
It's about time to report the earthquakes of the last couple of weeks (Sorry Susanna). Here is the list of the preceding weeks.

Screen Shot 2014-07-05 at 15.29.15 Screen Shot 2014-07-05 at 15.29.32

2014-06-12 22:52 UTC
Very little action to report during the last couple of weeks

Screen Shot 2014-06-13 at 00.52.36


2014-05-20 16:34 UTC

Screen Shot 2014-05-20 at 18.32.24


2014-05-17 09:52 UTC

Screen Shot 2014-05-17 at 11.50.59


2014-05-12 08:44 UTC
No important changes in the seismicity pattern

Screen Shot 2014-05-12 at 10.43.42


2014-05-03 14:29 UTC
Only 2 El Hierro earthquakes since our last update, but that does not mean anything of course :)

Screen Shot 2014-05-03 at 16.28.31


 Links to earlier parts of this extensive El Hierro eruption report : (28/7 – early 09)  – (25/09 – 10/10) - (11/10 – 13/10)- (14/10 – 17-10)  -  (18/10 – 21/10)  -  (22/10 – 26/10 ) - (27/10 – 31/10 )(01/11 – 03/11 )(04/11 – 06/11 )(07/11 – 08/11)(09/11- 11/11)  – (12/11 – 15/11) - (16/11 – 19/11)  – (20/11 – 23/11) – (24/11 – 27/11) – (28/11 – 02/12) -(03/12 – 07/12) – (08/12 – 11/12) – (12/12 – 15/12) – (16/12 – 18/12) – (19/12 – 25/12) – (26/12 – 31/12) – (01/01 – 03/01) – (04/01 – 07/01) – (08/01 – 13/01) – (14/01 – 19/01) - (20/01 – 25/01) -  (26/01 – 30/01) – (31/01 – 04/02) – (05/02 – 10/02) – (11/02 – 16/02) – (17/02 – 23/02) – (24/02 –29/02) – (1/03 – 10/03) – (11/03 – 18/03) - (19/03 - 23/03) - (24/03 - 28/03) - (29/03 - 03/04) - (04/04 - 10/04) - (11/04 – 21/04) - (22/04 – 30/04) - (01/05 – 10/05) - Part 43 (11/05 – 31/05) - (01/06 – 14/06) - (15/06 – 24/06) - (25/06 – 26/06) – (27/06 – 28/06) – (29/06 – 01/07) - (02/07 – 06/07) – (07/07 – 31/07) - (01/08 – 31/08) - (01/09 – 11/09) - (12/09 – 30/09) - Part 54 (01/10 – 15/12) - Part 55 (16/12 – 16/03) - Part 56 (16/03 – 26/03) - Part 57 (27/03 - 30/03) - Part 58 (31/03 - 12/08) - Part 59 (13/08 - 30/11) - Part 60 (1/12 - 25/12) - Part 61 (25/12 - 31/12)- Part 62 (01/01 - 30/04)


Read also : Scientific paper reveals massive historic Tenerife volcano flank collapse Read also: Economic impact on El Hierro and the Canary Islands if an aerial eruption would occur


Volcano Discussion Panel : If you are a person who wants to discuss and read about all aspects of volcanoes,  this discussion panel might be a very good place to hang around. Especially if we start speculating about what to happen next.

Comments

  1. Guten Morgen,

    vielen Dank für die gute und aktuelle Berichterstattung.

    Gestern abend gab es zwischen 20.30 Uhr und 21.06 Uhr zwei Beben (2.3 und 2.0) unter Land, die laut IGN in 0 km Tiefe stattfanden. Wenn das stimmen sollte, macht es nachdenklich, oder?

    • Armand Vervaeck says:

      Dear Monika,
      O km means that the data they have received are not accurate enough to report = no reliable data. Hope this explains a lot.
      O km bedeutet, dass die Daten, die sie erhalten haben, sind nicht genau genug, 0 = keine verlässlichen Daten zu berichten. Hoffe, das erklärt viel. Armand

    • Danke, Armand. Die roten Signale auf der Animacion von Avcan hatten mich aufgeschreckt. Jetzt kann ich es einordnen.

  2. Roland SEMEESE says:

    Hello Armand,

    Deze nacht 4.04 uur een beving van 3.8. Alhoewel nog zeer diep toch veel dichter bij Restigna, en vooral veel meer oostwaarst dan de rest van de bevingen de laatste dagen.
    Ik geloof erin dat binnenkort het magma zich een weg zal banen en de zwakke plekken onder de vorige eruptiekanalen zal bereiken.

  3. Hi!

    "Sentido"-earthquakes (felt by people) are back an El Hierro....!

  4. The reason for the accuracies of ultra rapid, rapid, and final is linked to the GPS system used to measure them.
    The satellite orbits are predicted ahead of time and measured from refernce stations, then corrections are computed based on measurements and used to update the orbit predictions.
    so the RAW GPS data for the satellite orbits is not known precisely in advance, because they are pertrubed by solar effects, gravitational effects, and the earhts magnetic fields.
    so Ultra Rapid measurements are always less accurate than final measurements because of uncertainties of the SV orbits.

  5. Benjamín says:

    Armand what does ultra rapid deformation mean? That the island is growing?

    • Armand Vervaeck says:

      Good question Benjamin. I have written my answer as the latest update on top of this article. Hope you will understand it.

    • Benjamín says:

      Thanks Armand and Phil for the taking the time to explain, but i'm still a bit puzzled.
      I understand now how the Ultra Rapid, Rapid and Final are measured and that they are "products", however I'm missing what they actually mean.

      I understand they have a meaning and they are used to indicate horizontal en vertical deformation.
      But what does deformation mean in this context? Litteraly deformation? As in the change of form of an object?

      That's why I asked if it means that because of the lava/magma the Island is swelling up or something?

    • Armand Vervaeck says:

      This means indeed that the location were the GPS has been installed is pushed towards North, South, East or West and up. Installed in a number of locations, these moving locations can give a clue on where the source of this magma pressure is located. An eventual eruption is most likely where the deformation is strongest. Of course in the case of El Hierro, the 2011 eruption was in the Las Calmas sea. There are unfortunately no stations in the sea.

    • Benjamín says:

      Ok thanks Armand.

  6. patricia says:

    Armand re today's report on El Hierro - the word for on the ocean sea floor in English is, on the " sea bed". Nearly right! Thanks for all your hard work!

    It is almost as if we had a dress rehearsal in 2011. Now" they" know what to do!

    • Armand Vervaeck says:

      Normally we should say also mar de Fondo or Bottom tide, but we will have to wait for Pevolca to get the final result. The mar de fondo has normally no jacuzzi spot like in our images above + the GES helicopter people clearly were talking about a Burbuja or Jacuzzi. They had a far better view than we had + they surely have not published all pictures they have taken + they may have had other instruments aboard too. A mistery more !

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