福建仙游M_L4.1地震序列波速比变化

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英文篇名：Analysis on the change of average seismic wave velocity ratios in Xianyou M_L 4.1 earthquake sequence,Fujian 中文刊名：地震地磁观测与研究 英文刊名：Seismological and Geomagnetic Observation and Research 作者：杨贵 ; 许振栋 英文作者：Yang Gui ; Xu Zhendong ; Earthquake Administration of Fujian Province ; Earthquake Administration of Pingtan City 中文关键词：M_L 4.1地震序列 ; 和达法 ; 波速比 英文关键词：M_L 4.1 earthquake sequence ; multi-station methods ; average seismic wave velocty ratios 出版日期：2013-04-25 机构：福建省地震局;平潭市地震局; 年：2013 期：Z1 出版单位：地震地磁观测与研究

摘要

应用多台和达法测定福建仙游M_L 4.1地震序列的M_L≥1.5地震波速比,其计算的相关系数较高,测得的波速比值具有较高的可信度。分析M_L 4.1主震前后的波速比发现,波速比经历低异常值—回升—相对稳定—下降—主震发生的过程,余震期里出现多次高异常值。
The average seismic wave velocity ratios of Xianyou M_L 4.1 earthquake sequence of M_L≥1.5 earthquakes in-Fujian are determined by use of multi-station methods.The correlation coefficient was calculated is high,the measured wave velocity ratio value is with high reliability.It is found by analyzing the wave velocity ratios before and after the main shock that they experienced a procedure of low abnormal values-rebound-relatively stable-decrease and finally the main shock occurred.In the aftershock stage,multiple times high abnormal values appeared.

引文

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