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From: Biniam Tekle (biniamt@dehai.org)
Date: Mon Jun 20 2011 - 08:25:54 EDT
Eritrea Nabro volcano activity : watch the eruption from outer space
Last update: June 20, 2011 at 10:48 am by By Armand Vervaeck and James
Daniell 141 Comments
Earthquake / Eruption summary : During the late afternoon and evening of
June 12 2011, a series of moderate earthquakes struck the Afambo, Eritrea
area. The moderate earthquakes were followed by 2 strong 5.7 earthquakes.
Based on the earthquake pattern and the locations of the epicenter, volcano
activity seemed imminent. Our very extensive report is also the work of many
of our readers who gave a lot of input. This proves that together, we can
beat a lot of information services, especially in developing countries. A
strong M5.5 earthquake has occurred in a similar position on 17th June 2011,
this is expected to also indicate volcanic activity.
Our video reporter / assembler Robert Speta has made a video based on the
content of this article for those who do not like to read. Click here to
watch it in our “Quake-TV.org” subsite.
UPDATE 20/06 – 09:36 UTC : The University of Wisconsin-Madison / Space and
Engineering Center did a great job in mounting several outer space satellite
pictures together to show the eruption from outer space. A sequence of
EUMETSAT Meteosat-9 7.35 µm “water vapor channel” images (below; click image
to play animation) was useful for following the leading edge of the volcanic
plume (the volcano summit is circled on the first few images of the
animation). Click here for the link to the University website and the
original document.
Interesting to follow is how the first ash cloud travelled over the
Middle-East on to Russia.
Animation:
http://cimss.ssec.wisc.edu/goes/blog/wp-content/uploads/2011/06/110612-14_met9_wv_anim.gif
and more images:
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Nabro Volcano Before Eruption [Photo of the Day]
No comments June 20, 2011 in Photos, Volcanoes
After midnight local time on June 13, 2011, the Nabro Volcano in the
Southern Red Sea Region of Eritrea erupted after a series of earthquakes hit
the Eritrea-Ethiopia border region, ranging up to magnitude 5.7. The image
below shows what the stratovolcano looked like before it erupted.
http://eoimages.gsfc.nasa.gov/images/imagerecords/51000/51074/ISS026-E-023526_lrg.jpg
This is the first time in recorded history that the Nabro Volcano has
erupted, spewing ash and large amounts of sulfur dioxide into the
atmosphere, the highest levels ever detected from space, according to
preliminary estimates from researchers at NASA’s Goddard Space Flight
Center.
The photo above was taken by astronauts onboard the International Space
Station in January of this year. The caldera stretches 8 kilometers (5
miles) in diameter and opens to the southwest, with two smaller caldera
within the larger structure.
Below are images from the eruption, courtesy of NASA’s Earth Observatory.
http://planetsave-com.wpengine.netdna-cdn.com/files/2011/06/nabro_amo_2011166_lrg.jpg
http://planetsave-com.wpengine.netdna-cdn.com/files/2011/06/nabro_ali_2011165_lrg.jpg
http://planetsave-com.wpengine.netdna-cdn.com/files/2011/06/Eritrea_amo_2011164_lrg.jpg
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