新疆M_S6.0和M_S6.6两次地震前近场泥火山宏观异常现象  

Abnormal phenomenon of a mud volcano in Wusu county before M_S 6.0and M_S 6.6earthquakes in Xinjiang

作　　者：王海涛[1] 高小其[1] 李志海[1] 吴传勇[1] 张涛[1] 黄新民[1] 

机构地区：[1]新疆维吾尔自治区地震局,中国乌鲁木齐830011

出　　处：《地震学报》2014年第1期139-145,159,共7页Acta Seismologica Sinica

基　　金：国家自然科学基金(40962006);地震科技星火计划攻关项目(XH1029);新疆高技术研究发展计划项目(201216145)联合资助

摘　　要：自2011年8月对新疆乌苏艾其沟泥火山实施24小时连续观测以来,在距泥火山200km范围内,相继发生了MS5.0、MS6.0和MS6.6地震.其中,在MS6.0和MS6.6地震前,艾其沟泥火山液面均出现了"背景值—上升—转折—下降—背景值"的异常变化现象,而地震都发生在泥火山液面下降的过程中.这一现象与已知的霍尔果斯泥火山震例异常有所不同,显示了泥火山的震兆异常特征可能与其构造条件密切相关.According to causes and activity characteristics of mud volcano, this paper briefly introduced corresponding phenomenon between eruption of mud volcano and earthquake occurrence. A real-time mud volcano monitoring system based on network video surveillance was developed in northern Tianshan region in August 2011. Three mud volcanos have been monitored by the system, and one of the three is the Aiqi valley mud volcano in Wusu region. At this mud vol- cano were found abnormal phenomena, such as liquid level ascending, {ailing and then back to normal, before the I November 2011 Nilka Ms6.0 earthquake and the 30 June 2012 Xinyuan Ms6.6 earthquake in Xinjiang. These two events occurred during the process of liquid level falling, which is different from the anomalies before the earthquake at Khorgos mud volcano. It illustrates that mud volcano activity is closely related to tectonic condition.

关 键 词：新疆 Ms6 0-7 0地震 泥火山 宏观异常 

分 类 号：P317.2[天文地球—固体地球物理学]