[1]FU Hong,LI Yong-li,ZHAO Xiao-yan,et al.Statistical Characteristics of the Anomalies before the M≥5 Earthquakes in Yunnan Region[J].Journal of Seismological Research,2008,31(04):335-339.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
31
Number of periods:
2008 04
Page number:
335-339
Column:
Public date:
2008-04-23
- Title:
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Statistical Characteristics of the Anomalies before the M≥5 Earthquakes in Yunnan Region
- Author(s):
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FU Hong; LI Yong-li; ZHAO Xiao-yan; LIU Li-fang
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(Earthquake Administration of Yunnan Province,Kunming 650224,Yunnan,China)
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- Keywords:
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analysis of earthquake case; anomaly characteristic; earthquake prediction; Yunnan
- CLC:
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P315.75
- DOI:
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- Abstract:
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We synthetically analyzed the anomalies before the 38 groups of earthquakes(M≥5)since 1970 in the Yunnan region,and obtained the common characteristics of the anomalies.The frequency of small earthquakes usually increases before the earthquakes(M≥5); the durations of anomalies of M≥6 earthquakes are longer than those of M5-6 earthquakes; the wider the anomalies distribute,the bigger the magnitude of the earthquake(M≥5); the ending of some tendentious precursory anomalies and the increasing of new abrupt anomalies can be considered as the sign of the earthquake preparation going into short-term and impending-earthquake period.