Spatial and Temporal Variation of b-Values in Southwest China

被引：21

作者：

Zhang, Shenjian ^{[1
]}

Zhou, Shiyong ^{[1
]}

机构：

[1] Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China

来源：

PURE AND APPLIED GEOPHYSICS | 2016年 / 173卷 / 01期

基金：

中国国家自然科学基金;

关键词：

b-value; frequency magnitude distribution; B-spline; Bayesian method; Wenchuan M-s 8.0 earthquake; Southwest China; EARTHQUAKE CATALOGS; WENCHUAN EARTHQUAKE; BAYESIAN-APPROACH; MAGNITUDE; FREQUENCY; STRESS; SICHUAN; COMPLETENESS; AFTERSHOCKS; SEISMICITY;

D O I：

10.1007/s00024-015-1044-7

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

In our study, we used an improved Bayesian method based on a basis spline (B-spline) function to estimate the spatial and temporal variations of b-values in Southwest China. We propose that b-values combined with seismicity and tectonic background can provide a fairly clear stress condition and can be used in earthquake hazard analysis. Very low b-values in Southwest China appear to be related to the 2008 Wenchuan earthquake. We also suggest that the decreasing b-value trend in the Longmen Shan area from 2000 to 2008 may be an indicator of the 2008 Wenchuan earthquake.

引用

页码：85 / 96

页数：12

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