| 1812年3月8日新疆尼勒克8级大震 |
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| 引用本文： | 杨章,陈祥玉,尹光华,李军,张勇.1812年3月8日新疆尼勒克8级大震[J].西北地震学报,1985,7(1):59-65. |
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| 作者姓名： | 杨章 陈祥玉 尹光华 李军 张勇 |
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| 作者单位： | 新疆维吾尔自治区地震局，新疆维吾尔自治区地震局，新疆维吾尔自治区地震局，新疆维吾尔自治区地震局，新疆维吾尔自治区地震局 |
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| 摘 要： | 1812年3月8日新疆尼勒克县发生的8级大震造成了极强烈的地表形变,产生了长达65公里的地震断裂带,其垂直位移可达10米,右旋水平位移在1.5米以上。极震区有多处构造塌陷、滑坡和崩塌,巨型塌陷的面积达2平方公里,滑坡体后缘最宽可达2公里,震中烈度110度强。本文根据现场考察及对航片的研究,结合历史记载勾绘了这次地震的烈度等震线,对地震的震级、震中位置、震源深度、地震矩、应力降和震源机制解等进行了计算和讨论,并对发震的地质构造背景进行了初步的探讨。
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| 收稿时间： | 1983/10/12 0:00:00 |
THE NILKE GREAT EARTHQUAKE(M=8.0, MARCH 8,1812, XINJIANG) |
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| Yang Zhang,Cheng Xiangyu,Yin Guanghu,Li Jun and Zhang Yong.THE NILKE GREAT EARTHQUAKE(M=8.0, MARCH 8,1812, XINJIANG)[J].Northwestern Seismological Journal,1985,7(1):59-65. |
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| Authors: | Yang Zhang Cheng Xiangyu Yin Guanghu Li Jun and Zhang Yong |
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| Institution: | The Seismological Bureau, Xinjiang Uigur Autonomous Region,The Seismological Bureau, Xinjiang Uigur Autonomous Region,The Seismological Bureau, Xinjiang Uigur Autonomous Region,The Seismological Bureau, Xinjiang Uigur Autonomous Region and The Seismological Bureau, Xinjiang Uigur Autonomous Region |
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| Abstract: | The earthquake of M=8.0 in the Nilke county,Xinjiang,on March 8, 1812,caused the violent deformation of the earth surface and produced a zone of the seismical fault about 65 km long.Within the zone,the maxim-um vertical offset measured is 10 m and the right-lateral offset more 1.5m There are also many structural collapses,landslips eboulements in the ma-gistoseismic area where the largest collapse is about 2km2,the widest back margin of landslip about 2km long,and the epicenter intensity over 11. In this paper,based on the field investigation,the data from the his-torical records and the interpretation of aerial photographs,we not only have plotted the isoseismic map but had a discussion and calculation about the magnititude of the earthquake,the epicentral location,the source depth,the seismic moment,the stress drop and the solution of focul me-chanism of the Nilke earthquake.Furthermore we have made preliminary research on the seismological background of the Nilke earthquake |
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