| 鲜水河断裂带重力场随时间的变化及其与地震之间的联系 |
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| 引用本文： | 廖华,彭长虹.鲜水河断裂带重力场随时间的变化及其与地震之间的联系[J].四川地震,1996(4):102-108. |
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| 作者姓名： | 廖华 彭长虹 |
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| 作者单位： | 四川省地震局地震测量队 |
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| 摘 要： | 处理鲜水河断裂带上１９８７年至１９９５年间的八期高精度重力复测资料，并利用计算机辅助图形分析程序将所有相邻两期的重力变化速度值转换为速率等值线图，通过对资料的逐一分析及与地震对应关系的比较，我们看到，鲜水河断裂的重力变化与其我及的地震之间有一定的联系。存在震前重力发生较大异常变化，震后重力立即发生反向直至恢复的变化，并且震前的重力异常变化量
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| 关 键 词： | 流动重力测量 地震 鲜水河断裂带 重力场 |
Relationship between Variation Of Gravity Field and Earthquake Along Xiashuihe Fault |
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| Liao Hua, Peng Changhong, Wan Chuang.Relationship between Variation Of Gravity Field and Earthquake Along Xiashuihe Fault[J].Earthquake Research in Sichuan,1996(4):102-108. |
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| Authors: | Liao Hua Peng Changhong Wan Chuang |
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| Institution: | Seismological Bureau of Sichuan Province |
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| Abstract: | Using computer assistant program of graphic analysis, we calculate eight sets of precisedata of gravity reobservations along Xiashuihe fault from 1987 to 1995.With the method oftransfering the maps of gravity variation between two contiguous sets of data into the velocity contours, we find that the gravity values at points located in the seismic region vary beforea medium-strong earthquake takes place and then it return to initial values after the earthquake. The examples are 1989 Batan M6.7, 1989 Shimia MS. 3 and 1989 Xiaojing M6. 6earthquakes. |
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| Keywords: | mobil gravity observation earthquake gravity contour |
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