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EARTHQUAKE ›› 2024, Vol. 44 ›› Issue (1): 185-188.doi: 10.12196/j.issn.1000-3274.2024.01.015

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Focal Mechanism for the December 18, 2023, Jishishan MS6.2 Earthquake in Gansu Province

WANG Qin-cai, LUO Jun, CHEN Han-lin, MENG Lin-xin   

  1. Institute of Earthquake Forecasting, China Earthquake Administration, Beijing 100036, China
  • Received:2023-12-21 Revised:2023-12-21 Online:2024-01-31 Published:2024-03-21

Abstract: The Cut-And-Paste (CAP) method is used to invert the focal mechanism solution of the MS6.2 earthquake that occurred on December 18, 2023, in Jishishan, Gansu Province, using regional network data. The result demonstrates that the earthquake is of the thrust type, which is consistent with the solutions provided by the USGS, GFZ, GCMT. The strike of fault plane II is in good agreement with the eastern margin fault of Jishishan.

Key words: The 2023 Jishishan MS6.2 earthquake, Focal mechanism

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