从震例总结角度分析玉树7.1级地震前地震活动性异常特征  

ANALYSIS OF THE CHARACTERISTICS OF SEISMIC ANOMALIES BEFORE YUSHU Ms7.1 EARTHQUAKE ACCORDING TO EARTHQUAKE CASES

作　　者：王培玲[1] 胡玉[1] 

机构地区：[1]青海省地震局,青海西宁810001

出　　处：《高原地震》2015年第A12期47-52,共6页Plateau Earthquake Research

摘　　要：利用1970年以来青海省完成的震例总结工作结果,对震例中明确提出的地震活动性异常进行了统计,结合玉树7.1级地震前出现的空区、前震等异常进行了分析。结果显示玉树地震前提出的多震级档空区异常是震例中有较高映震能力的指标。2010年4月14日玉树的4.7级地震被认为是当日7.1级地震的前震,这在以往震例中是少有的,也进一步说明震例总结和典型震例的深入研究对推动地震预报的发展具有重要的作用。The seismicity anomalies in the earthquake cases since 1970 in Qinghai province have made statistical analysis, and the gaps and foreshocks are analyzed before Yushu Ms 7. 1 earthquake. The results show that the gaps of different magnitudes are higher index of the earthquake reflect ability. Yushu Ms 4. 7 earthquake on April 14^th, 2010 is considered to be the foreshock of Ms 7. 1 earthquake, this is few cases in the past. The earthquake cases summarization and the further research of the typical earthquake examples play an important role for the development of earthquake prediction.

关 键 词：玉树7.1地震 异常 震例 

分 类 号：P315.5[天文地球—地震学]