| 河北省张北6.2级地震前的重力异常 |
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| 引用本文： | 史彦华,苏树朋.河北省张北6.2级地震前的重力异常[J].东北地震研究,2008,24(1):14-21. |
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| 作者姓名： | 史彦华 苏树朋 |
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| 作者单位： | 河北省地震局流动测量队,河北,保安,071000 |
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| 摘 要： | 绘制了重力测值的时变曲线和空间等值线，从动态的角度分析了1998年1月张北6．2级地震前的流动重力异常的演化及特征。结果显示，地震前的重力场呈下降变化，震中位于异常中心附近的重力变化高梯度区。
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| 关 键 词： | 张北ML6.2地震 重复重力 异常特征 |
| 文章编号： | 1004-2865(2008)01-14-08 |
| 修稿时间： | 2007年12月1日 |
GRAVITY ANOMALY BEFORE ZHANGBEI ML6.2 EARTHQUAKE IN HEBEI PROVINCE |
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| SHI Yan-hua,SU Shu-peng.GRAVITY ANOMALY BEFORE ZHANGBEI ML6.2 EARTHQUAKE IN HEBEI PROVINCE[J].Seismological Research of Northeast China,2008,24(1):14-21. |
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| Authors: | SHI Yan-hua SU Shu-peng |
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| Institution: | SHI Yan-hua, SU Shu-peng (Mobile Survey Team of Earthquake Administration of Hebei Province, Hebei Baoding 071000, China) |
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| Abstract: | The timing sequence curves and spatial isolines of gravity variation are drawn,and the dynamic variation and its characteristics of gravity anomalies before Zhangbei 6.2 in 1998 are analyzed.The results show,the earthquakes occur in the descending period of gravity;the epicenters was located near the center abnormal and locate at high grads region. |
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| Keywords: | Zhangbei ML6 2 earthquake mobile gravity characteristic of anomalies |
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