Title: COMPARATION BETWEEN WENAN-HEJIAN EARTHQUAKES AND SUBSENQUCE OF XINGTAI EARTHQUAKE SWARM
Abstract: Wenan M5.1 earthquake in Hebei on Jul.4 in 2006 is isolated type,and cannot extract more information from the earthquake sequence,so we combine this earthquake with Hejian M6.3 earthquake on Mar.27 in 1967 and the Hejian M5.3 earthquake on Dec.31 in 1973 as a whole,compared with some earthquakes occurred in Xingtai region,and summed up the earthquake activity characteristics in Wenan and its surrounding area:NNE—NWW conjugate distribution,the earthquake time interval increased significantly,the aftershocks frequency reduced gradually;the attenuation accelerated gradually,transition to isolated types,all the macro intensity was about one degree lower than the estimated;the coherence parameter of focal mechanism became consistent.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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