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EARTHQUAKE ›› 2001, Vol. 21 ›› Issue (2): 75-78.

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The gravity anomaly before the Zhangbei earthquake with MS 6.2 and analysis of its mechanism

ZHANG Jing   

  1. Center for Analysis and Prediction, CSB, Beijing 100036, China
  • Received:2000-05-16 Revised:2000-12-04 Online:2001-04-30 Published:2022-10-27

Abstract: The gravity anomaly in the far-field earthquake region before the 1998 Zhang bei MS = 6.2 earthquake is analy zed based on the backg round of geologic st ructure and dynamic mechani sm in no rthern Shanxi province and western Liao ning province. It is discussed that the gravity anomaly occurred along the deep-sea ted fault might beregardedas the seismic precurso rfield.

Key words: Gravity anomaly, Deep-seated fault, Zhangbei earthquake

CLC Number: