| 陕西地震活动规律与活动断裂的关系 |
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| 引用本文： | 方永安.陕西地震活动规律与活动断裂的关系[J].陕西地质,1997(1). |
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| 作者姓名： | 方永安 |
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| 作者单位： | 陕西地质矿产勘查开发局!西安市雁塔路，710054 |
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| 摘 要： | 陕西省自公元前1177年有地震记载以来，至1980年全省共发生4级以上地震70次，其中关中地区占45次。陕西主要属于华北地震区的汾渭地震带，次为南北地震带的六盘山地震带和属于华南地震区的秦岭─大巴山地震区。地震活动具有周期性、迁移性和重复性特点。地震活动与活动构造关系密切。活动性强的构造断裂应力容易集中，当能量积累到一定程度时，需要释放在其敏感部位而发震。
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| 关 键 词： | 地震活动规律 地震带 发震部位 陕西关中 |
THE RELATION BETWEEN SEISMIC ACTIVITY AND ACTIVE FAULT IN SHAANXI |
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| Fang Yongan.THE RELATION BETWEEN SEISMIC ACTIVITY AND ACTIVE FAULT IN SHAANXI[J].Geology of Shaanxi,1997(1). |
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| Authors: | Fang Yongan |
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| Abstract: | Seventy seismic activity, more than 4-magnitude, have been recorded from 1177 B. C.to 1980 in Shaanxi province, of which about forty five occured in Guan Zhong region.Shaanxi province belongs to Fen Wei seismic belt in the seismic region in the north part of China, which also belongs to the seismic belt of Liu Pan mountain and the seismic region of Qinling-Da Ba mountain. The characteristics of seismic activity are periodiclty, migration and recurrence. Seismic activity is closely related with active fault. The stress of high active fault is concentried easily, when the energy accumulation is too much great to release, the earthquake is caused in the sensity location. |
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| Keywords: | seismic active regularity seismic belt seismic location Guan Zhong region in Shaanxi province |
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