日本本州东海岸附近海域9.0级地震前地应力异常  

An earth stress abnormal before the M_s 9.0 earthquake near the east coast of Honshu,Japan

作　　者：张蕙[1] 张道义[2] 

机构地区：[1]山西省地震局,中国太原030021 [2]中国辐射防护研究院,中国太原030006

出　　处：《地震地磁观测与研究》2012年第3期10-13,共4页Seismological and Geomagnetic Observation and Research

摘　　要：2011年3月11日日本本州东海岸附近海域9.0级特大地震发生前,中国辐射防护研究院地震台PYL-3型高精度地应力仪记录的地震前,应力短期异常、临震异常情况,并作初步分析与研究。In this paper, the short-term abnormalities and imminent abnormalities recorded by the PYL-3 type high precision ground stress analyzer of Chinese Institute for Radiation Protection before the Ms 9.0 earthquake on March 11,2011, which occurred near the east coast of Honshu,Japan is introduced. Then the impending earthquake abnonormlities are preliminarily analyzed and studied.

关 键 词：地应力异常 高精度地应力仪 短期异常 临震异常 速率异常 矩形脉冲 

分 类 号：P315.727[天文地球—地震学]