新21号泉地震异常特征分析  

ANALYSIS ON EARTHQUAKE ANOMALY CHARACTERISTICS OF NO.21 SPRING

作　　者：李新勇[1] 杨晓芳[1] 崔勇[1] 张涛[1] 

机构地区：[1]新疆维吾尔自治区地震局,新疆乌鲁木齐830011

出　　处：《内陆地震》2014年第2期188-194,共7页Inland Earthquake

基　　金：国家公益行业专项(201408008);自治区高新技术研究发展规划项目(201216145);中央级公益性科研院所基本科研业务专项(IGCEA-12-21)联合资助

摘　　要：通过对新疆呼图壁新21泉近23年的观测资料系统梳理分析认为,该泉动水位对其300 km范围内的中强地震有较好的短临异常显示,异常特征为"阶跃"型和"脉冲"型,同时当该泉对其100 km范围内4级地震有较强的同震响应时,可能对后续中强地震的发生有一定的前兆指示意义。According to observation data of No. 21 spring in Hutubi seismic station since 1990, this paper found the dynamic water level has obvious precursor anomalies such as steps and pulses before moderate earthquakes within 350 kin; while coseismic change with Ms4.0 appeared in No. 21 spring within 100 km, which has indicative significance for subsequent earthquake.

关 键 词：新疆21泉 异常特征 阶跃型 脉冲型 

分 类 号：P315.7[天文地球—地震学]