| 汶川8.0级地震及余震期间陕西周至气汞的异常特征 |
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| 引用本文： | 赵小茂,黄辅琼,王新,张世民,陈冬柏,石大鹏. 汶川8.0级地震及余震期间陕西周至气汞的异常特征[J]. 内陆地震, 2010, 24(3): 236-240 |
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| 作者姓名： | 赵小茂 黄辅琼 王新 张世民 陈冬柏 石大鹏 |
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| 作者单位： | [1]陕西省地震局,陕西西安710068 [2]中国地震台网中心,北京100036 [3]周至地震台,陕西周至710402 [4]西安地震台,陕西西安710109 [5]西安市地震局,陕西西安710007 |
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| 基金项目： | 国家自然科学基金，中国地震局南北地震带北段大震危险性强化跟踪研究项目，陕西省地震局青年科研基金课题联合资助项目 |
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| 摘 要： | 汶川8.0级大地震及余震期间,陕西省周至气汞出现了3次同一类型的异常形态,研究表明这些异常与余震的起伏在时间上有一定的对应关系。异常的主要特征为主震前12 d气汞测值出现快速下降过程,降幅9%,而在随后几个月龙门山断裂北段的两组余震前,异常出现的时间均为震前3 d,下降幅度也均为15%。结合地震活动的特征,对2008年9月12日的余震进行了预测。
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| 关 键 词： | 汶川地震 陕西 地下流体 前兆异常 |
ANOMALOUS CHARACTERISTICS OF GAS HG IN ZHOUZHI WELL, SHAANXI PROVINCE DURING WENCHUAN MS8.0 EARTHQUAKE AND ITS AFTERSHOCKS |
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| Zhao Xiao-mao,Huang Fu-qiong,Wang Xin,Zhang Shi-min,Chen Dong-bai,Shi Da-peng. ANOMALOUS CHARACTERISTICS OF GAS HG IN ZHOUZHI WELL, SHAANXI PROVINCE DURING WENCHUAN MS8.0 EARTHQUAKE AND ITS AFTERSHOCKS[J]. Inland Earthquake, 2010, 24(3): 236-240 |
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| Authors: | Zhao Xiao-mao Huang Fu-qiong Wang Xin Zhang Shi-min Chen Dong-bai Shi Da-peng |
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| Affiliation: | 1.Earthquake Administration of Shaanxi Province,Xi＇an 710068,Shaanxi,China;2.China Earthquake Networks Center,CEA,Beijing 100045,Beijing,China;3.Zhouzhi Seiemic Station,Zhouzhi 710402,Shaanxi,China;4.Xi＇an Seismic Station,Xi＇an 710109,Shaanxi,China;5.Earthquake Administration of Xi＇an City,Xi＇an 710007,Shaanxi,China) |
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| Abstract: | Anomalous curve of gas Hg occurred three times with the same type in Zhouzhi well,Shaanxi province during Wenchuan MS8.0 earthquake and its aftershocks.The results showed the occurrence of the anomalies related with the aftershocks.The anomaly curve indicated a abrupt decrease from 12days before the main shock and the magnitude was 9%,Hg anomalies occurred 3 days before two types of aftershocks located on the Longmenshan faults in the followed several months and the magnitude was 15%.Based on earthquake activity,it was simply forecasted the aftershock on Sep.12^th,2008. |
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| Keywords: | Wenchuan earthquake Shaanxi Underground fluid Precursor Abnormity |
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