| 河南范县ML 4．7地震前后的重力变化分析 |
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| 引用本文： | 冯建林,秦建增,李德庆,黄邦武,徐顺强,张亚宁.河南范县ML 4．7地震前后的重力变化分析[J].地震地磁观测与研究,2008,29(4):12-16. |
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| 作者姓名： | 冯建林 秦建增 李德庆 黄邦武 徐顺强 张亚宁 |
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| 作者单位： | 中国郑州,450002,中国地震局地球物理勘探中心 |
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| 基金项目： | 中国地震局责任包干制项目 |
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| 摘 要： | 通过使用“LGADJ”软件，分析范县地震前后的重力场变化特征发现：震中附近的重力点值在地震的孕育-发震-震后调整阶段，出现了下降-上升-下降的过程。从重力变化的角度，我们认为，该地震前后的重力变化支持孕震过程的膨胀理论；指出：通过加强观测研究冀鲁豫交界地区重力场变化，不断探索地震破坏机理，为和谐新农村建设提供地震安全保障!
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| 关 键 词： | 范县地震 聊兰断裂 重力变化 孕育模型 重力测量 和谐新农村 |
Analyzing on gravity variety before and after Fan county ML 4.7 earthquake in Henan Province |
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| Feng Jianlin,Qin Jianzeng,Li Deqing,Huang Bangwu,Xu Shunqiang,Zhang Yaning.Analyzing on gravity variety before and after Fan county ML 4.7 earthquake in Henan Province[J].Seismological and Geomagnetic Observation and Research,2008,29(4):12-16. |
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| Authors: | Feng Jianlin Qin Jianzeng Li Deqing Huang Bangwu Xu Shunqiang Zhang Yaning |
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| Institution: | (Research Center of Exploration Geophysics,China Earthquake Administration, Zhengzhou 450002, China) |
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| Abstract: | With the software ＂LGADJ＂, the variation feature of gravity field before and after the Fan county earthquake is analyzed. The result shows that the variation of gravity value in the station near epicenter represents as a raising-dropping-raising process during the pregnancy, occurrence and aftershock adjustment stages of the earthquake. From the view of gravity field variation, we think that the gravity variation going with this earthquake supports the inflation theory of earthquake gestation process~ By strengthening the study on gravitational field change in joint region of Hebei, Shandong and Henan Province, exploring earthquake destroying mechanism, better earthquake safety control for the harmonious new rural recon- struction can be provided. |
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| Keywords: | Fan county earthquake Liaocheng-Lankao fault gravity variation seismic breeding modle gravitation survey harmonious new country |
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