张渤带形变预测指标分析

Abstract

Abstract: Based on earthquake cases in the Zhangjiakou-Bohai seismic belt, a systematic study of deformation anomalies before M≥5.0 earthquakes from 1966 tothe present was carried out. We initially conclude that deformation anomalies relatively concentrate from M5.6 to 6.2 earthquakes, and concentrate from 110 to 270 km in space. There is relatively small number of tidal anomalies and mutation anomalies. There is relatively more number of annual variation anomalies, and the anomalies are corresponding to the earthquakes from M4.5 to M5.0 and M6.0 to M6.5, and the anomaly extension is 100~300 km. The trend transition anomalies are corresponding to the M5.5 to 6.5 earthquakes, and the anomalous time increases with the increase of magnitude in the range of 4.5~6.5.

Key words: Deformation, Prediction index, the Zhangjiakou-Bohai seismic belt

CLC Number:

P315.7

MA Dong, LIU Qi, YAN Wei, QU Man, HOU Xiao-zhen, ZHANG Xiao. Analysis of Deformation Prediction Index for the Zhangjiakou-Bohai Seismic Belt[J]. EARTHQUAKE, 2016, 36(4): 101-108.

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Analysis of Deformation Prediction Index for the Zhangjiakou-Bohai Seismic Belt

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