Volcanic activity worldwide 1 Oct 2013: Tjörnes Fracture Zone
Tue, 1 Oct 2013, 23:0323:03 PM |
Tjörnes Fracture Zone (North of Iceland): An intense earthquake swarm has been going on offshore North Iceland, 10 km NW of Gjögurtá, since 25 September. This morning, 2 earthquakes reaching magnitude 3 and 3.2 occurred at 06:14 and 07:41. In total, more than 1000 quakes have been recorded by IMO.
Location of recent quakes at the TFZ
The depths of the quakes vary from about 15 km depth (crust-mantle boundary) to near surface. The area is located on an active fault line related to rifting, and a possible cause of the earthquake swarm could be a magmatic intrusion.
Tue, 1 Oct 2013, 12:57
Volcanic activity worldwide 1 Oct 2013: Klyuchevskoy, Monte Albano, Ulawun, Copahue, Karymsky, Shive...
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