2013年甘肃岷县漳县M_S6.6地震及短临前兆的显现  

Minxian-Zhangxian M_S6.6 Earthquake in Gansu(2013)and Its Short-term and Impending Precursors

作　　者：郭安宁[1] 郭志宇[1] 赵乘程[1] 任栋[1] 吴建华[1] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000

出　　处：《地震工程学报》2015年第4期981-985,共5页China Earthquake Engineering Journal

摘　　要：简述了2013年7月22日甘肃岷县漳县MS6.6地震的情况。该地震是1954年以来甘肃省发生的最大地震。本文对这次地震的短临前兆进行了综合论述与讨论,内容包括地震发生日与节气和朔望日的关系、地磁静日低点位移的回顾、低点位移的倍九日期回顾、异年倍七律方法的指标在临震日期预测的回顾、甘肃天水深井电阻率的短期前兆的回顾,最后讨论了综合预测的问题。This study describes the situational characteristics of the Minxian-Zhangxian MS6.6earthquake that occurred on July 22,2013,in Gansu;this is the strongest earthquake felt in this province since 1954.We also review and discuss the short-term and impending precursors of this earthquake：（1）the relation between the earthquake occurrence date and the solar term and syzygy,（2）the displacement of the geomagnetic low point on a quiet day,（3）the multiplied nine days regularity after low-point displacement,（4）the prediction of the impending earthquake＇s occurrence day using the＂rhythm of multiplied seven days in different years＂index,and（5）the short-term precursors of geoelectrical resistivity in a deep well at Tianshui station in Gansu.Finally,we discuss the problem of comprehensive prediction.

关 键 词：甘肃岷县漳县MS6.6地震 短临前兆 

分 类 号：P315.9[天文地球—地震学]