| 陕西地区流动重力历史资料清理分析 |
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| 引用本文： | 张永奇,;曹建平,;郝洪涛,;韩美涛.陕西地区流动重力历史资料清理分析[J].地震地磁观测与研究,2014(1):171-176. |
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| 作者姓名： | 张永奇 ;曹建平 ;郝洪涛 ;韩美涛 |
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| 作者单位： | [1]陕西省地震局,中国西安710068; [2]中国地震局地震研究所,中国武汉430071 |
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| 基金项目： | 地震行业科研专项：鄂尔多斯地块南缘大地测量观测与强震危险性研究（编号：201208009） |
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| 摘 要： | 介绍流动重力历史资料清理流程、方法及获得的规范化成果，对1998年泾阳MS 4．8、2009年高陵MS 4．4地震前后的重力场变化进行分析，得到结论：①泾阳地震前后重力场变化满足“震前重力持续增强-震后反向恢复”的特征；②泾阳地震的发生可能与附近断裂活动有关，同时受华北块体应力场的作用；③高陵地震前后重力变化与泾阳地震前后重力变化具有一定的相似性，且位于渭河断裂附近，两个地震均受到渭河断裂活动的影响。
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| 关 键 词： | 流动重力 历史资料清理 重力场变化 地震 |
Compilation,sunmary and analysis of the historical repeated gravity measurement data in Shaanxi area |
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| Institution: | Zhang Yongqi, Cao Jianping, Hao Hongtao, Han Meitao (1) Earthquake Administration of Shaanxi Province, Xi＇an 710068, China 2) Institute of Seismology, China Earthquake Administration, Wuhan 430071, China) |
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| Abstract: | The compilation process and the method of the repeated gravity historical data,as well as the standardized gravity results obtained are introduced.On this basis,the gravity field vari-ation before and after the 1998 Jingyang MS 4. 8 earthquake and the 2009 Gaoling MS 4. 4 earthquake are preliminarily analyzed and some conclusions are obtained：①the gravity varia-tion before and after the Jingyang earthquake accord with the feature that the gravity contin-uous enhancement before the earthquake and reverse recovery then;②Jingyang earthquake rupture may occur with nearby fault activities,as well as affected by the North China block stress field;③the gravity variation before and after the Gaoling earthquake is similar with the Jingyang earthquake.The two earthquakes are occurred in the Weihe fault,which are affected by the impact of the Weihe fault activity. |
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| Keywords: | repeated gravity historical data compilation variation of gravity field earth-quakes |
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