| 永登5.8级地震序列及有关问题讨论 |
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| 引用本文： | 雷芳 陈玉华. 永登5.8级地震序列及有关问题讨论[J]. 内陆地震, 1998, 12(4): 327-336 |
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| 作者姓名： | 雷芳 陈玉华 |
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| 作者单位： | 中国地震局兰州地震研究所!兰州730000(雷芳，董治平，姚同福，王珍，吕尚俊，龙军华)，青海省地震局!西宁810001(陈玉华) |
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| 摘 要： | 对永登５．８ 级地震序列及近１０ 年来永登—兰州地区的小震活动进行了研究，结果表明：永登５．８ 级地震为孤立型，震前近１０ 年震区一直有小震活动，主震是在小震活动经历了一个增多—加剧—平静的过程后才发生的。历史地震活动资料及地质构造表明，永登地区存在中强地震孕育的背景
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| 关 键 词： | 甘肃 余震序列 小震活动 历史地震资料 中强地震 |
THE YONGDENG M-S 5.8 EARTHQUAKE SEQUENCE AND THE DISCUSSION ON RELATED QUESTIONS |
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| Lei Fang ) Dong Zhiping ) Chen Yuhua ) Yao Tongfu ) Wang Zhen ) Lu Shangjun ) Long Junhua ) ) . THE YONGDENG M-S 5.8 EARTHQUAKE SEQUENCE AND THE DISCUSSION ON RELATED QUESTIONS[J]. Inland Earthquake, 1998, 12(4): 327-336 |
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| Authors: | Lei Fang ) Dong Zhiping ) Chen Yuhua ) Yao Tongfu ) Wang Zhen ) Lu Shangjun ) Long Junhua ) ) |
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| Affiliation: | Lei Fang 1) Dong Zhiping 1) Chen Yuhua 2) Yao Tongfu 1) Wang Zhen 1) Lu Shangjun 1) Long Junhua 1) 1) |
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| Abstract: | The Yongdeng M-S 5.8 earthquake sequence and past ten years of microseismicity in the Yongdeng-Lanzhou region is studied.It is found in the research that the Yongdeng M-S 5.8 earthquake belongs to isolated type,and minor earthquakes usually strike the seismic area in near ten years before the mainshock,and that the mainshock occurred after the microseismicity experienced a process to increase,intensify and quiet.From the data of historical seismicity and geological structure in the Yongdeng area it can be seen that the background of developing moderate earthquakes exists in the Yongdeng area. |
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| Keywords: | Gansu Aftershock sequence Small earthquake activity Historical seismological data Moderate earthquake |
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