河津M_s 4.8地震前兆异常特征  

Precursory anomaly of Hejin M_s 4.8 earthquake

作　　者：荆红亮[1,2] 张仰辉[1,2] 李军[1,2] 董甲弟[1,2] 李艳[1,2] 

机构地区：[1]临汾中心地震台,中国山西041000 [2]太原大陆裂谷动力学国家野外科学观测研究站,中国山西030025

出　　处：《地震地磁观测与研究》2012年第1期32-38,共7页Seismological and Geomagnetic Observation and Research

基　　金：山西省地震局2010年科研项目

摘　　要：通过对山西河津4.8级地震前的各种前兆异常信息进行识别,发现地震前短临异常尤为突出,出现转折、加速、慢地震等现象。据此总结在地震孕育过程中前兆手段的一些异常演变特征,为山西中南部"十五"数字化资料进一步研究地震前兆信息和预报提供实际震例资料,对获取更多的震前信息提供有力证据。Through the information identification of variety precursory anomalies prior to Hejin Ms 4. 8 earthquake, it was found that the short term and emergent abnormalities before the earthquake is especially highlighted, phenomena such as turning, accelerating and slow earthquake occurring. Based on this research, some characteristics of precursory anomalies in the process of earthquake generation fire summarized, providing a case study for the further research on the earthquake precursory information with the digital data produced by ＂the tenth-five year plan＂ equipments and earthquake prediction in southern and central Shanxi province. It also provides forceful evidences for obtaining more pre-earthquake information.

关 键 词：异常特征 压性变化 慢地震 

分 类 号：P315.72[天文地球—地震学]