| 1990年4月17日新疆乌恰6.4级地震序列特征 |
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| 引用本文： | 杨成荣.1990年4月17日新疆乌恰6.4级地震序列特征[J].内陆地震,1991,5(4):352-357. |
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| 作者姓名： | 杨成荣 |
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| 作者单位： | 新疆维吾尔自治区地震局 乌鲁木齐 |
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| 摘 要： | 1990年4月17日乌恰6.4级地震序列有以下特征:(1)主震型序列;(2)强余震前小地震震中向强余震的震中附近迁移;(3)余震频度衰减快;(4)余震在主震和最大余震之间活动;(5)较大余震存在“密集-平静-发震”的规律;(6)存在晚期较强余震。
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| 关 键 词： | 新疆 地震序列 地震 震级 |
ANALYZING THE CHARACTERISTICS OF WUQIA 6. 4 EARTHQUAKE SEQUENCE ON APRIL 17,1990 IN XINJIANG |
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| Yang Chengrong.ANALYZING THE CHARACTERISTICS OF WUQIA 6. 4 EARTHQUAKE SEQUENCE ON APRIL 17,1990 IN XINJIANG[J].Inland Earthquake,1991,5(4):352-357. |
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| Authors: | Yang Chengrong |
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| Abstract: | After studing the sequence of Wuqia 6. 4 earthquake ,we got the following features(1) Sequence for main shock type;(2) Migration of small earthquakes epicentres towards strong aftershock epicentres before the strong aftershock occurrence;(3) The quick attenuation of aftershock frequency;(4) Aftershock activity between main shock and maximum aftershock;(5) Regulation of "Dense-quiet-occurrence" for large aftershocks;(6) Stronger aftershock in the later period of the sequence. |
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| Keywords: | Xinjiang Wuqia Earthquake sequence The characteristics of the sequence |
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