太原地震台记录的四川汶川地震震相分析

英文篇名：Analysis of Sichuan Wenchuan earthquake phase recorded by Taiyuan Seismic Station
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：孟彩菊 ; 杨世英 ; 赵春华 ; 靳玉贞 ; 黄春玲
英文作者：Meng Caiju~(1) ; 2)) ; Yang Shiying~(1) ; 2)) ; Zhao Chunhua~(1) ; 2)) ; Jin Yuzhen~(1) ; 2)) and Huang Chunling~(1) ; 3))1) Taiyuan Seismic Station ; Shanxi Province 030025 ; China2) Taiyuan Reference Seismological Station of Earthquake Administration of Shanxi Province ; Shanxi Province 030025 ; China3) Xiaxian Seismic Station ; Shanxi Province 044400 ; China
中文关键词：四川汶川地震 ; 太原地震台 ; 震相分析
英文关键词：Wenchuan earthquake in Sichuan Province ; Taiyuan Seismic Station ; phase analysis
出版日期：2009-12-25
机构：太原基准地震台;030025;太原大陆裂谷动力学国家野外科学观测研究站;;夏县地震台;044400;
年：2009
期：06
出版单位：地震地磁观测与研究

摘要

四川汶川系列地震距太原基准地震台约1000 km,介于近震与远震之间,震相特殊,识别困难。本文通过对汶川主、余震和四川其他地区远震波形的对照,及对主要震相周期、幅度及波形特点的分析,认为PN、SG两个震相是太原地震台记录四川汶川地震的主要定位震相。
Wenchuan earthquakes, in Sichuan Province, occurred about 1 000 km away from Taiyuan Seismic Station. Since the epicenter distance is in the middle point of near shock and distant shock, the phases are hard to be identified. In this paper, we compare the waveform of main shock and after shocks of Wenchuan earthquake with those of other teleseismic earthquakes occurred in Sichuan Province, and analyze the characteristics of period, amplitude and waveform of main phases. We found that the PN and SG phases are the main phases which can be used for the location of Wenchuan earthquake in Taiyuan Seismic Station.

引文

刘鸿斌等.2002．昆仑山西口MS 8． 1特大地震序列的记录特征[J].地震地磁观测与研究,23(4) :69-71
孟晓春.2005．地震信息分析技术[M].北京:地震出版社