Anomalous tremor before 2008 Ms8.0 Wenchuan earthquake: a review  

作　　者：Hao Xiaoguang Hu Xiaogang Tian Lianghui 

机构地区：[1]Key Laboratory of Dynamical Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Science, Wuhan 430077, China

出　　处：《Geodesy and Geodynamics》2011年第3期56-60,共5页大地测量与地球动力学（英文版）

基　　金：supported by the National Natural Science Foundation of China(90814009);Quality Control’s Special Funds for Scientific Researchon Public Causes(10-215);National Key Technology Research and Development Program(2008BAC35B05)

摘　　要：In this paper we give a review of several previously published papers on anomalous tremors observed before the 2008 Ms8.0 Weuchuan earthquake. Based on the observed time and frequency shifts between coastal and inland stations, we discussed some methods to distinguish different kinds of microseisms, and speculated that a pre-earthquake typhoon might have caused a ＂mainland-originated microseism＂ which in turn trig- gered the earthquake.In this paper we give a review of several previously published papers on anomalous tremors observed before the 2008 Ms8.0 Weuchuan earthquake. Based on the observed time and frequency shifts between coastal and inland stations, we discussed some methods to distinguish different kinds of microseisms, and speculated that a pre-earthquake typhoon might have caused a ＂mainland-originated microseism＂ which in turn trig- gered the earthquake.

关 键 词：Ms8.0 Wenchuan earthquake anomalous tremors before earthquake REVIEW MICROSEISMS ty-phoon 

分 类 号：P315.9[天文地球—地震学] TG333[天文地球—固体地球物理学]