2014年5月云南盈江两次中强地震震源参数研究

Abstract

Abstract: Waveforms recorded at local and global seismic networks were adapted to inverse focal mechanism and depth of two moderate earthquakes (May 24, 2014 M_S5.6 and May 30, 2014 M_S6.1) in Yingjiang, China. The new developed Cut-And-Paste method uses two dataset separately and simultaneously. Both two earthquakes are right lateral strike slip event. The fault plane of the M_S5.6 event is 153°/90°/171°while the M_S6.1 event is 172°/72°/180. These fault planes are consistent with local stress field. The focal depth results are much shallower than results with global average model. With the distribution of aftershock and other previous results, the Sudian fault, which is a north-south fault, is the possible seismogenic fault.

Key words: Focal mechanism, Focal depth, Joint inversion, May 24, 2014 M_S5.6 and May 30, 2014 M_S6.1 Yingjiang earthquakes

CLC Number:

P315.7

ZHANG Li-na, HAN Li-bo, LUO Yan. Source Parameters of May 24, 2014 M_S5.6 and May 30, 2014 M_S6.1 Earthquakes in Yingjiang, Yunan Province[J]. EARTHQUAKE, 2016, 36(1): 59-68.

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Source Parameters of May 24, 2014 M_S5.6 and May 30, 2014 M_S6.1 Earthquakes in Yingjiang, Yunan Province

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Source Parameters of May 24, 2014 MS5.6 and May 30, 2014 MS6.1 Earthquakes in Yingjiang, Yunan Province

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Source Parameters of May 24, 2014 M_S5.6 and May 30, 2014 M_S6.1 Earthquakes in Yingjiang, Yunan Province