| 1812年尼勒克地震的宏观震中位置研究 |
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| 引用本文： | 尹光华,蒋靖祥,吴国栋. 1812年尼勒克地震的宏观震中位置研究[J]. 内陆地震, 2009, 23(4): 424-429 |
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| 作者姓名： | 尹光华 蒋靖祥 吴国栋 |
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| 作者单位： | 新疆维吾尔自治区地震局,新疆,乌鲁木齐,830011 |
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| 摘 要： | 微观震中是震源在地表的投影,宏观震中是极震区的几何中心,不同的定义造成位置的差异,大地震的差异比较大,断裂产状也是导致震中位置差异的主要影响因素。据历史记载确定的1812年地震的宏观震中,侧重人居环境,震中位置偏西,初步考察受条件限制也存在一定误差。近年的研究取得了新进展,在尼勒克谷地东部新发现了该地震造成的地质灾害,包括了40 km的形变带,19km的地震断层。根据修正的等震线图,极震区的几何中心在北纬43°45,′东经83°34′。
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| 关 键 词： | 1812年尼勒克地震 微观震中 宏观震中位置 地震地质灾害 等震线图 |
RESEARCH OF THE MACRO-EPICENTER LOCATION ON 1812 NILKA EARTHQUAKE |
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| YIN Guang-hua,JIANG Jing-xiang,WU Guo-dong. RESEARCH OF THE MACRO-EPICENTER LOCATION ON 1812 NILKA EARTHQUAKE[J]. Inland Earthquake, 2009, 23(4): 424-429 |
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| Authors: | YIN Guang-hua JIANG Jing-xiang WU Guo-dong |
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| Affiliation: | YIN Guang-hua,JIANG Jing-xiang,WU Guo-dong(Earthquake Administration of Xinjiang Uygur Autonomous region,Urumqi 830011 Xinjiang China) |
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| Abstract: | The microcosmic-epicenter is the ground projection of focus,and macro-epicenter is the geometric center of the meizoseismal region.The different definitions result in the difference of position.The difference of large earthquake is bigger and the faults' occurrences are main influence factor of this difference.The macro-epicenter of 1812 earthquake,based on the historical record,emphasizes particularly on residing environment and is leaning to the west.The existing errors can also be attributed to the limit... |
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| Keywords: | 1812 Nilka Earthquake Microcosmic-epicenter The location of macro-epicenter The newly discovered seismogeological disasters The revised isoseismal map |
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