| 日本Ms9.0地震前的连续重力观测异常 |
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| 引用本文： | 韦进,刘子维,郝洪涛,吴云龙,康开轩,赵斌,申重阳,李辉.日本Ms9.0地震前的连续重力观测异常[J].大地测量与地球动力学,2011,31(2):9-11. |
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| 作者姓名： | 韦进 刘子维 郝洪涛 吴云龙 康开轩 赵斌 申重阳 李辉 |
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| 作者单位： | 1）中国地震局地震研究所，武汉 430071 ;2）武汉大学测绘学院，武汉 430079 ;3）武汉大学计算机学院，武汉 430079 |
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| 基金项目： | 中国地震局地震研究所所长基金，国家自然科学基金，全国重力台网学科中心运行经费 |
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| 摘 要： | 日本Ms9.0地震后,检测了17台(套)gPhone重力仪和成都GS15连续重力观测仪震前3天的观测数据.发现:乌什、郑州台的gPhone重力仪和成都台的GS15重力仪分钟采样在震前3天出现了不明原因的高频异常现象.初步分析表明,成都、乌什在3月9日的日本Ms7.3地震前的16小时产生了纺锤状的隆起现象;郑州台在日本M...
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| 关 键 词： | 日本Ms9.0地震 gPhone重力仪 GS15重力仪 重力扰动 热带气旋 |
GRAVITY ANOMALIES IN BEFORE Ms9.0 EARTHQUAKE IN JAPAN OBSERVED BY CONTINUOUS RELATIVE GRAVIMETER IN CHINA |
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| Wei Jin,Liu Ziwei,Hao Hongtao,Wu Yunlong,Kang Kaixuan,Zhao Bing,Shen Chongyang,Li Hui.GRAVITY ANOMALIES IN BEFORE Ms9.0 EARTHQUAKE IN JAPAN OBSERVED BY CONTINUOUS RELATIVE GRAVIMETER IN CHINA[J].Journal of Geodesy and Geodynamics,2011,31(2):9-11. |
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| Authors: | Wei Jin Liu Ziwei Hao Hongtao Wu Yunlong Kang Kaixuan Zhao Bing Shen Chongyang Li Hui |
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| Institution: | 1)1) Institute of Seismology,CEA,Wuhan 430071 2) School of Geodesy and Geomatics,Wuhan University,Wuhan 430079 3) School of Computer Science,Wuhan University,Wuhan 430079 |
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| Abstract: | After Ms9.0 earthquake in Japan, the data of 17 gPhones and GS15 continuous relative gravimeters 3 days before the huge earthquake were analyzed. It is shown that there were some unknown gravity anomalies of gPhone and GS15 in Wushi, Zhengzhou and Chengdu station. The preliminay analysis shows that the records at Chengdu and Wushi stations had the type of spindle gravity disturbance 16 hours before the Ms7.3 earthquake of Japan in 2011-03-09. And the gravimeter’s records in Zhengzhou station had the cylindrical gravity disturbance not only before the Ms7.3 earquake but also the Ms9.0 earquake in Japan. Although the tropical cyclones, the impact of human disturbance and other factor can be ruled out, the relationship between the gravity disturbance and the earthquake in Japan and the data of even more time scale are remained to be further analyzed. |
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| Keywords: | Ms9 0 earthquake in Japan gPhone gravimeter GS15 gravimeter gravity disturbance tropical cyclone |
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