青海地区中强地震及震群热红外异常信息分析  

ANALYSIS ON THERMAL INFRARED ANOMALY INFORMATION ABOUT STRONG EARTHQUAKES AND EARTHQUAKE SWARM IN QINGHAI PROVINCE

作　　者：李戈云 马玉虎[1] 

机构地区：[1]青海省地震局,青海西宁810001

出　　处：《高原地震》2014年第1期8-13,53,共7页Plateau Earthquake Research

基　　金：中国地震局监测预报司"青海地区强震中长期危险性预测"资助

摘　　要：应用中国静止气象卫星FY-2E红外遥感资料对青海地区中强地震以及系列震群进行研究。经对比分析,结果表明:由地震热红外时空演化图分析知,异常总体特征为出现—最大—消失的过程,异常都出现在震中附近区域,地震热红外异常形态与断层走向基本一致;地震热红外异常时序曲线基本上很好地对应了地震的发生时段。Using the FY -2E satellite thermal infrared brightness temperature data from Chinese geostationary meteoro -logical satellite, we studied the strong earthquakes and series of earthquake swarm in Qinghai prov- ince. By the comparison and analysis, the results of thermal infrared images show that：the process of abnormal general characteristics are appeared- reached the maximum- disappeared. Anomalies are mainly distributed in the epicenter area, the size of the abnormal regions and the time curves are consistent with the strike of the fault, time curves of mean value of relative oower soectra are basieallg corresponding to the the earthquake period.

关 键 词：卫星红外遥感 中强震 震群 热红外异常 小波变换 相对功率谱 

分 类 号：P315.72[天文地球—地震学]