Vulkaanuitbarsting bij Canarische Eilanden #4

quote:

VERY IMPORTANT Update 19/03 – 17:02 UTC
- ER reader Roland (see comments) has given us the lead to a report of the University of Las Palmas de Gran Canaria showing the still erupting submarine El Hierro volcano at a depth of 70 meter (this is 18 meter less than the last published data from the IEO High Tech bathymetry equipment!). What nobody could accomplish so far, has been done by the quite simple ROV E-Wally on board of the SOS-Oceanos, Q-Star, Atlantic Explorer ship by the scientists of the Universidad de Las Palmas the Gran Canaria.
- The images have been captured on March 14 as the date on the images reveal. The images are of course foggy as a lot of suspended material is polluting the water.
- No doubt that Q-Star and the University has also some video footage that they will probably release later on (the pictures are probably screen captures of the video).
We are however VERY PLEASED that all those who cooperated on this mission have proved :
a) that the depth of the erupting cone has decreased to 70 meter
b) that the eruptive process is not yet entirely finished (at least it was not after the date that Pevolca said that the eruption stopped).
Joke was “very excited” on March 14 after talking to the crew of the Atlantic Explorer as they stated already then that the ROV made images of glowing lava. As we could not see these images, we brought the news rather minimal.

quote:

Update 03/04 08:01 UTC
Is this a sign of the awakening of the volcano ? To early to tell, but what we have seen so far today is the renewed activity of the feeder area at El Golfo. 3 of the 4 earthquake epicenters are located in the El Golfo area. The strongest M2.5 quake below the (new) volcano-vent itself.
4 earthquakes since midnight, the last one being the strongest. The 2.5 earthquake will have been surely felt by islanders and brings the memories back from the multiple earthquake they have felt a couple of months ago.

Update 02/04 18:43 UTC
- A video published by IGN shows a lot of degassing effects at depth of 100 to 150 m. We believe that the video has been captured by the Salvamar during his excursions the last couple of days. The water was very clear while videotaping? We congratulate CSIC with this video.

Así está el volcán de El Hierro.mpg

quote:

Update 16/04 – 12:42 UTC
- 2 serious earthquakes in a matter of 12 minutes (Thank to ER reader Diana for telling us)
At first a Magnitude 3.1 earthquake at a depth of 14 km to the SW of El Pinar
followed by a second M2.2 earthquake at a depth of 1p km also to the SW of El Pinar

quote:

Update 19/04 – 12:09 UTC
- In a short twitter message from the Cabildo de Hierro (office of Mr. Alpidio Armas), the Green Alert of the entire island has been declared by Pevolca. Due to the very slim activity of the last couple of weeks (only faint stains and degassing), the Alert level change seems logical to Earthquake-Report.com

twitter:

eruptionsblog twitterde op woensdag 09-05-2012 om 15:31:48 Check out this underwater video of the degassing lavas from the El Hierro eruption taken May 2:

Nuevas i‪mágenes del volcán submarino de El ‪Hierro

(via @PrensaElHierro) reageer retweet

quote:

Forty years after the Teneguía Volcano (La Palma, 1971), a submarine eruption took place off the town of La Restinga, south of El Hierro, the smallest and youngest island of the Canarian Archipelago. Precursors allowed an early detection of the event and its approximate location, suggesting it was submarine. Uncertainties derived from insufficient scientific information available to the authorities during the eruption, leading to disproportionate civil protection measures, which had an impact on the islands economy based primarily on tourism, while residents experienced extra fear and distress.

quote:

Update 14/06 – 13:00 UTC
- An increasing number of earthquakes, what is called an earthquake swarm, took place in the early hours this morning. Up to 19 earthquakes in less than 3 hours. Magnitudes have been high, with one reaching M 2.8. All depths in between 19 and 26 km. According to IGN this is normal and part of the seismic process and not the eruption.
-Map done by AVCAN website with full list of earthquakes here:

Event Date Time Lat Lon Depth
(km) Mag Location
1148498 14/06/2012 04:00:02 27.7251 -17.9972 20 0.5 NW EL PINAR.IHI
1148500 14/06/2012 04:32:09 27.7622 -18.0380 22 1.5 W FRONTERA.IHI
1148507 14/06/2012 04:40:20 27.7481 -18.0339 20 2.3 W FRONTERA.IHI
1148514 14/06/2012 04:46:49 27.7432 -18.0379 23 1.4 SW FRONTERA.IHI
1148515 14/06/2012 04:52:39 27.7834 -18.0411 24 1.9 NW FRONTERA.IHI
1148530 14/06/2012 04:59:27 27.7873 -18.0422 21 1.3 NW FRONTERA.IHI
1148531 14/06/2012 05:00:00 27.7596 -18.0381 26 1.4 W FRONTERA.IHI
1148542 14/06/2012 05:14:10 27.7519 -18.0415 22 1.6 W FRONTERA.IHI
1148536 14/06/2012 05:15:10 27.7306 -18.0264 22 1.9 SW FRONTERA.IHI
1148544 14/06/2012 05:22:16 27.7896 -18.0447 20 1.7 NW FRONTERA.IHI
1148546 14/06/2012 05:27:00 27.7569 -18.0432 23 1.3 W FRONTERA.IHI
1148547 14/06/2012 05:34:31 27.8004 -18.0500 19 1.3 NW FRONTERA.IHI
1148549 14/06/2012 05:34:56 27.7735 -18.0356 21 1.5 NW FRONTERA.IHI
1148559 14/06/2012 05:41:04 27.7853 -18.0509 21 1.8 NW FRONTERA.IHI
1148561 14/06/2012 05:54:22 27.8062 -18.0488 20 1.8 NW FRONTERA.IHI
1148562 14/06/2012 06:01:52 27.7644 -18.0395 22 2.3 W FRONTERA.IHI
1148563 14/06/2012 06:05:07 27.7794 -18.0525 22 2.8 NW FRONTERA.IHI
1148565 14/06/2012 06:06:20 27.7726 -18.0591 23 2.7 NW FRONTERA.IHI
1148568 14/06/2012 07:48:40 27.8015 -18.0680 21 2.1 NW FRONTERA.IHI

QSTAR - ULPGC VÍDEO DE GRAN INTERÉS DE LA FILMACIÓN DEL VOLCAN SUBMARINO CON EL ROV