| 日本Ms9.0地震前的重力高频扰动 |
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| 引用本文： | 刘子维,韦进,郝洪涛,吴云龙,李辉.日本Ms9.0地震前的重力高频扰动[J].大地测量与地球动力学,2011,31(2):4-8. |
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| 作者姓名： | 刘子维 韦进 郝洪涛 吴云龙 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)武汉大学计算机学院，武汉 430079 |
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| 基金项目： | 全国重力台网学科中心运行经费(201101008); 中国地震局地震研究所所长基金(IS200956045) |
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| 摘 要： | 选取中国重力台网14台gPhone弹簧重力仪组成2个观测剖面,对日本本州东海岸附近海域Ms9.0特大地震前(3月1日至10日)的观测数据进行了分析.结果表明:沿海各台站统一出现了喇叭口状的"重力异常扰动"现象,且扰动异常随震中距的增加呈衰减趋势.
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| 关 键 词： | 日本地区 Ms9.0地震 地震重力台网 gPhone重力仪 震前重力高频扰动 |
PRE-SEISMIC GRAVITY DISTURBANCE OF HIGH FREQUENCY BEFORE Ms9.0 EARTHQUAKE IN JAPAN |
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| Liu Ziwei,Wei Jin,Hao Hongtao,Wu Yunlong,Li Hui.PRE-SEISMIC GRAVITY DISTURBANCE OF HIGH FREQUENCY BEFORE Ms9.0 EARTHQUAKE IN JAPAN[J].Journal of Geodesy and Geodynamics,2011,31(2):4-8. |
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| Authors: | Liu Ziwei Wei Jin Hao Hongtao Wu Yunlong Li Hui |
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| Institution: | Liu Ziwei1,2),Wei Jin1),Hao Hongtao 1),Wu Yunlong1) and Li Hui1) 1) Institute of Seismology,CEA,Wuhan 430071 2) School of Computer Science,Wuhan University,Wuhan 430079 |
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| Abstract: | We have chosen fourteen gPhone spring gravimeters of China Gravity Network to form two observation sections,and analyzed the observation records(in March 1 to10) before the M s9.0 earthquake near Japan east coast.The results indicate that a kind of bell-like of abnormal gravity disturbance occurring at all littoral observation stations and the magnitude of abnormal gravity disturbance attenuate with the distance from epicenter. |
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| Keywords: | near Japan east coast M s9 0 earthquake earthquake gravity network gPhone gravimeter fore-seismic gravity high frequency disturbance |
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