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Acta Seismologica Sinica

, Volume 9, Issue 2, pp 235–244 | Cite as

The spatial temporal evolution characteristics of the load/unload response ratio (LURR) and its implications for predicting the three elements of earthquakes

  • Zhi-Ping Song
  • Xiang-Chu Yin
  • Xue-Zhong Chen
Article
  • 1 Downloads

Abstract

The spatial temporal evolution characteristics of the load/unload response ratio (Y) before strong earthquakes is studied in this paper. The results show that the regions of high value ofY migrate and converge to the impending earthquake epicenter from different directions before the occurrence of the event. Basing on this discovery, it is proposed that the method can be used to predict the three elements of an earthquake. It was applied to predict that an earthquake would occur in the western part of Yunnan Province, southwestern China. The three elements (time, space and magnitude) of the Menglian earthquake withM s7.3 which occurred on July 12, 1995 in Yunnan Province tallied with our prediction.

Key words

load/unload response ratio (LURR) time-space evolution of LURR three elements of earthquakes earthquake prediction 

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Copyright information

© Acta Seismologica Sinica 1996

Authors and Affiliations

  • Zhi-Ping Song
    • 1
  • Xiang-Chu Yin
    • 2
  • Xue-Zhong Chen
    • 2
  1. 1.Institute of GeophysicsState Seismological BureauBeijingChina
  2. 2.Center for Analysis and PredictionState Seismological BureauBeijingChina

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