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| 澜沧、耿马地震序列图象与发震构造讨论 | |
| 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]. 地震工程学报, 1991, 13(1): 57-62 |
| 作者姓名： | 毛玉平 李盛德 |
| 作者单位： | 云南省地震局(毛玉平)，云南省地震局(李盛德) |
| 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。 |
| 关 键 词： | 地震序列 地震形变带 发震构造 |
| 收稿时间： | 1989-12-19 |
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]. China Earthguake Engineering Journal, 1991, 13(1): 57-62 | |
| Authors: | Mao Yuping and Li Shengde |
| Affiliation: | Seismological Bureau of Yunnan Province, Kunming and Seismological Bureau of Yunnan Province, Kunming |
| 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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