Imaging the nonvolcanic tremor zone beneath the San Andreas fault at Cholame, California using station-pair double-difference tomography

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• 作者：Haijiang Zhang^a ; ^{zhang11@ustc.edu.cn} ; Robert M. Nadeau^b ; Hao Guo^a
• 关键词：station-pair double-difference seismic tomography ; nonvolcanic tremor ; low frequency earthquake ; San Andreas fault at Cholame ; California ; low Vs and high-pore pressure fluids
• 刊名：Earth and Planetary Science Letters
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：460
• 期：Complete
• 页码：76-85
• 全文大小：2124 K
• 卷排序：460

文摘

A new station-pair double-difference seismic tomography method is presented. A detailed Vs model is obtained for the Cholame tremor zone for the first time. Most of the Cholame tremors are associated with low Vs anomalies. Low velocities are likely due to hydrous minerals and high-pressure pore fluids.