| 张北6.2级地震前地震活动性异常及序列特征研究 |
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| 引用本文： | 边庆凯,李守忠.张北6.2级地震前地震活动性异常及序列特征研究[J].华北地震科学,1999,17(3):35-42. |
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| 作者姓名： | 边庆凯 李守忠 |
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| 作者单位： | 河北省地震局!石家庄050021 |
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| 摘 要： | 从分析地震活动性参数变化特征的角度出发，结合实际的地震活动观测资料，对张北６．２级地震前河北省及邻区地震活动性参数的变化，地震序列的衰减特征进行了分析，结果表明张北６．２级地震前在震源区附近１００ｋｍ和大范围地震活动性参数有长、中、短期的异常变化。张北６．２级地震强余震前地震活动性参数有短、临变化。
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| 关 键 词： | 地震活动 地震活动参数 b值 地震序列 地震前兆 |
A STUDY OF THE SEISMIC ACTIVITY ANOMALY BEFORE THE ZHANGBEI M S 6.2 EARTHQUAKE AND THE CHARACTERISTICS OF ITS SEQUENCE |
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| Bian Qingkai Li Shouzhong Mao Zhiwei Li Shulian Wang Qincai.A STUDY OF THE SEISMIC ACTIVITY ANOMALY BEFORE THE ZHANGBEI M S 6.2 EARTHQUAKE AND THE CHARACTERISTICS OF ITS SEQUENCE[J].North China Earthquake Sciences,1999,17(3):35-42. |
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| Authors: | Bian Qingkai Li Shouzhong Mao Zhiwei Li Shulian Wang Qincai |
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| Abstract: | Acording to changes of seismic activity parameters and using actual observation data,the author has analyzed the changes of the seismic activity parameters in Hebei Province and its adjacent regions before the Zhangbei M S 6.2 earthquake and the attenuation characteristic of its sequence.The result shows that the seismic activity parameters in the area of 100 km around the focal zone and large range showed long-term,mid-term and short-term andomalous changes before the Zhangbei M S 6.2 earthquake.Before the strong after shocks of the Zhangbei M S 6.2 earthquake,the seismic activity parameters showed short-term and imminent changes. |
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| Keywords: | seismicity seismic activity parameter b value earthquake sequence |
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