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2011•Geodesy and GeodynamicsOpen access

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

Hao Xiao-guang, Xiaogang Hu, Tian Lianghui

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Abstract

In this paper we give a review of several previously published papers on anomalous tremors observed before the 2008 Ms8. 0 Wenchuan 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 triggered the earthquake.

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What this paper is about

In this paper we give a review of several previously published papers on anomalous tremors observed before the 2008 Ms8. 0 Wenchuan 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 triggered the earthquake.

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Available abstract

In this paper we give a review of several previously published papers on anomalous tremors observed before the 2008 Ms8. 0 Wenchuan 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 triggered the earthquake.

Key concepts: Microseism, Geology, Seismology, Typhoon, Climatology

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