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EARTHQUAKE ›› 2008, Vol. 28 ›› Issue (2): 79-86.

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Summary of research on phenomena of critical earthquakes and the method to inspect increase of correlative length

MIAO Qing-zhuang, JIANG Hai-kun   

  1. China Earthquake Networks Center, CEA, Beijing 100046, China
  • Received:2007-09-26 Revised:2007-11-29 Online:2008-04-30 Published:2021-10-29

Abstract: As the typical characteristics before strong shocks, the earthquake activities of critical moment and phenomena of accelerating earthquake moment release around main earthquakes have been attended these years. Some researches have lately showed that there are the phenomena of accelerating earthquake moment release in the wide area around the epicenter and the phenomena of decelerating earthquake moment release in the narrower region around the epicenter. Here the authors briefly summarize the status of the research and existing problems at home and abroad: the critical state of seismic activities and phenomena of accelerating and decelerating earthquake moment release before the mainshock.

Key words: Correlation before earthquake, Critical state, AMR, Seismic moment, DA model

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