| 河南范县ML4.3级地震前后重力异常探讨 |
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| 引用本文： | 冯建林,赵兵.河南范县ML4.3级地震前后重力异常探讨[J].华北地震科学,2006,24(4):28-31. |
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| 作者姓名： | 冯建林 赵兵 |
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| 作者单位： | 中国地震局地球物理勘探中心,河南,郑州,450002 |
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| 摘 要： | 分析研究范县地震前后豫鲁测网的重力场与点值变化特征后发现:地震发生在重力场上升过程中,且地震震中位于重力等值线负值区到正值区的过渡带上,重力点值在时间上具有同步性,而震后重力场的下降有可能是新的异常。
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| 关 键 词： | 范县地震 聊兰断裂 重力场变化 重力异常 |
| 文章编号： | 1003-1375（2006）04-0028-04 |
| 收稿时间： | 2006-01-25 |
| 修稿时间： | 2006年1月25日 |
Gravity anomaly before and after Fanxian ML4.3 earthquake in Henan Province |
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| FENG Jian-Lin,ZHAO Bing.Gravity anomaly before and after Fanxian ML4.3 earthquake in Henan Province[J].North China Earthquake Sciences,2006,24(4):28-31. |
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| Authors: | FENG Jian-Lin ZHAO Bing |
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| Institution: | Research Center of Exploration Geophysics, CEA, Zhengzhou 450002, China |
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| Abstract: | Through analysis to the gravity anomalies in Hebei and Henan measuring network before and after Fanxian earthquake we found: earthquakes occur in the increasing course of gravity field,and the values at each site have synchrony both in time and magnitude.The drop of gravity after earthquake may be new anomaly. |
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| Keywords: | Fanxian earthquake Liaolan fault variation of gravity field gravity anomaly |
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