特克斯5.9级地震前后乌鲁木齐形变观测资料和断层出水异常分析  

ANOMALY CHARACTERISTICS OF DEFORMATION DATA IN URUMQI STATION BEFORE AND AFTER TEKESI M_S5.9 EARTHQUAKE

作　　者：王治民[1] 张永岗[1] 冯向东[1] 朱治国[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》2009年第1期42-48,共7页Inland Earthquake

基　　金：新疆地震科学基金项目(200603)资助

摘　　要：分析了2007年7月20日新疆特克斯5.9级地震前后乌鲁木齐形变站跨断层短水准及F2断层出水异常。该次地震前后乌鲁木齐形变站的形变资料出现了明显的短期形变异常及震后效应，也反映了现今雅玛里克山断裂带的最新构造运动。表明该台的观测手段对北天山中西部地区5.5-6.0级以上地震有较强的监控能力，并对乌鲁木齐周边及北天山中西部地区5-6级以上地震具有较好的临震前兆异常反映，这可能为震情趋势判断提供一定的依据。The water yield anomaly of fault-crossing short leveling and F2 fault in Urumqi station before and after Tekesi Ms5.9 earthquake on Jul. 20, 2007 was analyzed. The deformation data showed obvious short term deformation anomaly and post-seismic effect in Urumqi station and also reflected the new tectonic activity of Yamalikeshan Mountain fault zone. The results showed that the deformation data had good monitoring capacity for 5.5-6.0 moderately strong earthquakes in the central and western area of north Tienshan, imminent anomalous responses before 5.0-6.0 earthquakes in Urumqi and its surrounding area, in the central and western area of north Tienshan and was able to provide evidence for judgment of earthquake situation trend probably.

关 键 词：特克斯5.9级地震 地形变 前兆异常 乌鲁木齐 

分 类 号：P315.72[天文地球—地震学]