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地震 ›› 2005, Vol. 25 ›› Issue (2): 83-90.

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2003年昭苏MS6.0地震定点形变异常初步分析

蒋靖祥1, 王在华1, 温和平1, 杨又陵1, 王瑞平2, 王爱倩3, 赖爱京4   

  1. 1.新疆维吾尔自治区地震局, 新疆 乌鲁木齐 830011;
    2.阿克苏地震台, 新疆 阿克苏 843000;
    3.克孜尔水库管理局, 新疆 拜城 842313;
    4.乌什地震台, 新疆 乌什843400
  • 收稿日期:2004-06-07 修回日期:2004-07-26 出版日期:2005-04-30 发布日期:2021-11-10
  • 作者简介:蒋靖祥(1956-),女,河南永城人,副研究员,主要从事分量式钻孔应变、跨断层形变及地震预报等研究。
  • 基金资助:
    地震科学联合基金项目(104003); 中国地震局三结合课题(200323)

Preliminary analysis of anomalies of fixed point deformation before Zhaosu MS6.0 earth- quake on December 1, 2003

JIANG Jing-xiang1, WANG Zai-hua1, WEN He-ping1, YANG You-ling1, WANG Rui-ping2, WANG Ai-qian3, LAI Ai-jing4   

  1. 1. Earthquake Administration of Xinjiang Uygur Autonomous Region, Urumqi 830011;
    2. Seismic Station of Akesu, Akesu 843000;
    3. Management Bureau of Kizil Reservoir of Xinjiang, Baicheng 8423123;
    4. Seismic Station of Wushi, Wushi 843400, China
  • Received:2004-06-07 Revised:2004-07-26 Online:2005-04-30 Published:2021-11-10

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摘要： 2003年12月1日在新疆维吾尔自治区昭苏县境内发生了MS6.0地震。 震前, 跨断层形变测量、 钻孔应变、 地倾斜资料出现异常。 其异常特征为: ① 趋势异常表现为年变畸变; ② 短期异常出现压应变增大、 矢量打结、 高差减小; ③ 临震异常呈现大幅度波动不稳定变化; ④ 异常类型齐全, 趋势、 短临、 临震均有显示; ⑤ 异常较丰富, 形变观测方法均出现了异常; ⑥ 异常比较集中, 都分布在300 km内, 且多在震中以南地区。

关键词: 昭苏MS6.0地震, 分量式钻孔应变, 地倾斜, 跨断层测量, 前兆异常

Abstract: An MS6.0 earthquake occurred in Zhaosu County, in Xinjiang Uygur Autonomous Region on December 1, 2003. Before the earthquake, anomaly of fault-crossing deformation, borehole strain and ground tilting occurred. The main anomaly features are as follows: ① Trend anomaly appears annual difference; ② The short-term anomalies are expressed as strain increase, vector knotting, height difference reduction; ③ Impending anomalies appeared to instable change with large amplitude fluctuating; ④ Anomalies show all types, such as tendency, the short-term anomaly, and impending term; ⑤ Anomaly type was richer, including all types of deformation anomalies; ⑥ Anomalies were centralized, all distributed within 300 km, and many distributed in the south of epicentral area.

Key words: Zhaosu MS6.0 earthquake, Componential-type borehole strain, Ground tilting, Fault-crossing deformation measurement, Precursory anomaly

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