| 澜沧、耿马地震序列图象与发震构造讨论 |
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| 引用本文： | 毛玉平,李盛德.澜沧、耿马地震序列图象与发震构造讨论[J].西北地震学报,1991,13(1):57-62. |
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| 作者姓名： | 毛玉平 李盛德 |
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| 作者单位： | 云南省地震局
(毛玉平)，云南省地震局(李盛德) |
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| 摘 要： | 本文分析了1988年11月6日云南澜沧、耿马地震序列的震中分布及迁移图象,发现其地震序列中主震及余震明显地沿北北西向分布。7.2级地震所形成的形变带沿北北西向旱母坝断层分布,表明该断层即为此次地震的发震构造。7.6级地震时,沿北西向木嘎断裂和北北西向澜沧—勐海断裂均形成明显的地震形变带,表明其发震构造较复杂。主震后的强余震活动与北东向断裂有密切关系。本文认为澜沧、耿马地震序列具有复杂的发震构造和破裂图象。
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| 关 键 词： | 地震序列 地震形变带 发震构造 |
| 收稿时间： | 1989/12/19 0:00:00 |
PRELIMINARY DISCUSSION ON SEISMIC SEQUENCE AND EARTHQUAKE-GENERATING TECTONICS OF LANCANG-GENGMA EARTHQUAKES OF 1988 |
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| Mao Yuping and Li Shengde.PRELIMINARY DISCUSSION ON SEISMIC SEQUENCE AND EARTHQUAKE-GENERATING TECTONICS OF LANCANG-GENGMA EARTHQUAKES OF 1988[J].Northwestern Seismological Journal,1991,13(1):57-62. |
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| Authors: | Mao Yuping and Li Shengde |
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| Institution: | Seismological Bureau of Yunnan Province, Kunming and Seismological Bureau of Yunnan Province, Kunming |
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| Abstract: | The Lancang-Gengma earthquake sequence of 1988 formed a obvious epicenter zone which is in NNW strike. The events of M7.6 and M7.2 formed it''s seismic deformation belt in the ground separately. The earthquake-generating tectonics of M7.2 earthquake is Hanmuba fault in NNW trend. The M7.6 earthquake showed the complicated character of earthquake-generating tectonics, it formed obvious seismic deformation belt separately along Muga fault and Laneang-Menghai fault. The activity of strong aftershoek related to the faults in NE trend in Laneang-Gengma area. Therefore, Laneang-Gengma earthquake sequence has complicated patterns of earthquake-generating tectonics and seismic rupture. |
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