| 文安5．1级地震前的重力场变化 |
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| 引用本文： | 苏树朋,张纳莉,李非,史彦华,王顺昌.文安5．1级地震前的重力场变化[J].华北地震科学,2008,26(2):45-48. |
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| 作者姓名： | 苏树朋 张纳莉 李非 史彦华 王顺昌 |
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| 作者单位： | 1. 河北省地震局保定中心台,河北,保定,071000
2. 河北省地震局后土桥地震台,河北,昌黎,066611 |
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| 摘 要： | 绘制了重力测值的时序变化曲线和空间等值线，从动态的角度分析了2006年7月文安5．1级地震前的流动重力异常的演化及特征。结果显示，地震的孕育过程与重力场变化有关，震中位于重力变化高梯度区的“0”等值线附近。
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| 关 键 词： | 文安地震 流动重力 异常特征 |
Variation of gravity field before Wenan M5.1 earthquake |
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| SU Shu-peng,ZHANG Na-li,LI Fei,SHI Yan-ha,WANG Shun-chang.Variation of gravity field before Wenan M5.1 earthquake[J].North China Earthquake Sciences,2008,26(2):45-48. |
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| Authors: | SU Shu-peng ZHANG Na-li LI Fei SHI Yan-ha WANG Shun-chang |
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| Institution: | SU Shu-peng , ZHANG Na-li, LI Fei, SHI Yan-ha, WANG Shun-chang ( 1. Baoding Central Seismostation, Baoding 071000, Hebei province, China 2. Houtuqiao Seismostation, Changli 066611, Hebei Province, China) |
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| Abstract: | The timing sequence curves and spatial isolines of gravity are drawn, and the dynamic variation and its characteristics of gravity anomalies before Wenan MS. learthquake that occurred on Jul. 4, 2006 are analyzed. The results show that the process of seismogeny is relevcmt to the variation of gravity field; the epicenter usually locates near 0 isoline of high grads region. |
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| Keywords: | Wenan earthquake mobile gravity characteristic of anomalies |
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