作者：Hla Hla AUNGtarleyearthquakeactivetectonicsmyanmarsuture
摘要：An earthquake of 6.8 magnitude struck the eastern Shan State in Myanmar at 20:29:30 Myanmar Standard Time(01:55:12 PM UTC) on 24 March 2011.It is one of the earthquakes in plate-interior setting.Six after-shocks occurred the same year.The nucleation point of this earthquake was defined by an epicenter at 20 km west of Tarlay(20.705°N,99.949°E) at a depth of 10 km and its magnitude was 6.8.The earthquake damage was disastrous.The geological disasters were linearly distributed along the surface rupture zone.The earthquake produced cracks,arch bend,erupting sand,gush water,etc.in many places.As a result of this strong earthquake,224-305 houses were seriously damaged,74 people were killed,124 injured.The event was named after the nearest village Tarlay and the NE-or ENE-striking Nan Ma fault was responsible for it.A detailed morphotectonic study was carried out in the area using satellite image 1:24,000 scale aerial photographs and 1:63360 scale topographic maps,to correlate the seismicity with tectonics.It is found that there are two prominent lineaments striking in NE-or ENE-and N-S or NNE-SSW direction.The present-day deformation of the Than Lwin suture zone is consistent with roughly NW-SE extension and NE-SW striking compression,but with more conjugate strike-slip faulting and only minor normal faulting.
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