Sumatra Earthquake Causes Deaths, Injuries
A 6.1 magnitude earthquake struck the Indonesian island of Sumatra on Tuesday. According to the U.S. Geological Survey , the quake occurred in the Aceh reagion at the northern end of the island, around 34 miles from the city of Bireun.
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“Geologist [I'm Climate Change]”
Since: Mar 07
#1 Jul 3, 2013
Saw this one on the NEIC website.
Despite the loss of the "Historic seismicity" panel on the website options I do know that this one hit in the E. part of the Geureudong segment near the volcano group of the same name. This sector of the S. part of the Andaman Backarc basin remained locked during the mw9.2 quake of 26/12/2004, and was compressed further during the mw8.5 quake of 2005.
A look @ the moment tensor indicates that the shallow quake was a response to Sumatra arc rather than Andaman arc convergence and was a transform quake (SW-NE). The aftershock sequence indicates compression & folding on either arm of the transform. No sign of anything from the volcanoes though.
Have a nice day: Ag
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