洛阳地震台数字记录的台湾省地震误差分析

英文篇名：The analysis about the magnitude deviation of earthquakes of Taiwan Province from digital recording of Luoyang 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：王世昌 ; 刘晓锋 ; 郅红魁
英文作者：Wang Shichang ; Liu Xiaofeng and Zhi Hongkui(Luoyang Seismic Station ; Henan Province 471023 ; China)
中文关键词：台湾省地震 ; 震级误差 ; 原因 ; 校正
英文关键词：earthquakes of Taiwan Province ; deviation of magnitude of earthquake ; reason ; correct
出版日期：2007-12-25
机构：洛阳地震台,洛阳地震台,洛阳地震台,
年：2007
期：06
出版单位：地震地磁观测与研究

摘要

结合洛阳地质构造背景,分析了2000年1月～2006年10月洛阳地震台记录到的台湾省地震的P波干扰因素及识别方法,影区地震、深源震的S波(或LG波)特征,采用中国地震台网中心确定的震级与洛阳地震台测定的复核、速报震级相比较,按震级段、年度分别统计分析,查找产生震级误差的原因,计算出台基校正系数,认为排除干扰、提高震相分析能力、用台基校正系数修正MS计算公式,是减小震级误差的有效方法。
In the paper,considering the geology structure of Luoyang area,we analyzed the P wave disturbance factors and the identification method of earthquakes of Taiwan Province record in Luoyang Seismic Station during the January,2000 to October,2000.The S wave(or LG wave)characteristics of shadow earthquake and deep earthquake are also analyzed.The magnitudes reported by Luoyang Seismic Station and China Earthquake Networks Center are compared.The magnitude deviation is statistical analyzed according the magnitude segments or year to find the source of magnitude deviation and determining the station base correct coefficients.We believe that the effectively ways to reduce magnitude deviation of earthquake are eliminating the disturbance factors,improving analysis ability of seismic phases and modifying the MS formula with station base correct coefficients.

引文

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