Small earthquake swarm detected at Iceland’s Katla volcano

August 28, 2011ICELAND –  A small earthquake swarm has been detected under the Mýrdalsjökull glacier where Katla sits. The caldera is 10 km (6 mi) in diameter and is covered with more than 200–700 metres (660-2,300 ft) of ice. The strongest quake in the latest burst of new tremors measured a 2.2 on the magnitude scale. A volcano this size produces a large amount of seismic tremors before there is an eruption so it is something only to monitor at this point. Katla is capable of producing a VEI6 eruption, which would be about 100 times more powerful than the 2010 eruption of its little sister Eyjafjallajökull. Katla last erupted in 1918 and many geologists say the two volcanoes unusually erupt in concert.The Extinction Protocol
contribution Luisport
This entry was posted in Earth Changes, Earth Watch, High-risk potential hazard zone, Potential Earthchange hotspot, Seismic tremors, Volcano Watch. Bookmark the permalink.

4 Responses to Small earthquake swarm detected at Iceland’s Katla volcano

  1. c/o Luisport

    SWARM IN KATLA VOLCANO JUST NOW!!! Sunday
    28.08.2011 11:54:44 63.630 -19.308 3.5 km 1.9 58.55 3.1 km WSW of Goðabunga
    Sunday
    28.08.2011 11:53:10 63.629 -19.278 3.9 km 0.4 69.86 1.8 km SW of Goðabunga
    Sunday
    28.08.2011 11:49:08 63.632 -19.282 4.7 km 1.6 90.04 1.8 km WSW of Goðabunga
    Sunday
    28.08.2011 11:49:07 63.603 -19.151 7.6 km 1.4 74.17 3.6 km NW of Hábunga
    Sunday
    28.08.2011 11:41:24 63.629 -19.290 4.5 km 2.2 90.05 2.3 km WSW of Goðabunga
    Sunday
    28.08.2011 11:40:59 63.632 -19.295 3.9 km 0.9 61.3 2.4 km WSW of Goðabunga
    Sunday
    28.08.2011 11:34:22 63.634 -19.292 4.3 km 1.2 90.01 2.2 km WSW of Goðabunga
    Sunday
    28.08.2011 11:26:18 63.634 -19.287 3.3 km 0.9 90.02 1.9 km WSW of Goðabunga
    Sunday
    28.08.2011 11:24:58 63.631 -19.284 5.2 km 1.6 90.03 2.0 km WSW of Goðabunga
    Sunday
    28.08.2011 11:24:40 63.634 -19.278 4.4 km 1.0 51.43 1.5 km WSW of Goðabunga
    Sunday
    28.08.2011 11:19:05 63.634 -19.289 4.7 km 0.0 59.94 2.0 km WSW of Goðabunga
    Sunday
    28.08.2011 11:15:07 63.628 -19.296 4.8 km 0.6 32.47 2.6 km WSW of Goðabunga
    Sunday
    28.08.2011 09:47:52 63.634 -19.196 2.2 km 0.6 99.0 2.7 km ESE of Goðabunga
    Sunday
    28.08.2011 09:35:04 63.652 -19.080 0.1 km 1.0 99.0 8.0 km N of Hábunga

    http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/

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  2. Don’t really know what the probability is, but if Katla and Eyjafjallajökull would ever decide to erupt in tandem, that would be truly disastrous. Regardless, this bears watching.

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  3. coolgunz says:

    I’ve been watching Katla now for about 18 months.

    http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/#view=map

    This last “swarm” was the scariest yet!

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  4. luisport says:

    Katla volcano:

    Two new earthquake swarms took place in Katla volcano today. This earthquake started around 09:30 UTC this morning. Most of the earthquakes where smaller then ML1.0 in size. The depth was around 5.5 km on average. The largest earthquake was ML2.3 in size, with the depth of 5.5 km. That earthquake swarm was in Goðabunga area of Mýrdalsjökull glacier (Katla volcano). But here was also a minor earthquake swarm inside Katla volcano caldera. But in that earthquake swarm the earthquakes there where even smaller, most of those earthquake didn’t reach the size ML1.0. The earthquake swarm in Goðabunga area in Katla volcano might be due to dike intrusion in that area. I do not know if this might be something else. But given the data, this is the most likely the reason for this earthquake swarm in this area. The earthquake swarm did stop at 12:47 UTC. After that everything has been quiet so far.

    Few earthquakes also did happen SE part of the Katla volcano caldera. But there have been earthquakes in this area since July. But this activity did start soon after the glacier flood from Mýrdalsjökull glacier.

    http://www.jonfr.com/volcano/?p=1371

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