Landslides Triggered by the 1970 Tonghai Ms 7.7 Earthquake and their Distribution Characteristics
Landslides Triggered by the 1970 Tonghai Ms 7.7 Earthquake and their Distribution Characteristics
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1970年通海7.7级地震引发的山体滑坡及其分布特征
DOI：
10.1088/1755-1315/861/5/052011
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发表时间：
2021-10
期刊：
影响因子：
--
通讯作者：
Junhong Hu
中科院分区：
文献类型：
--
作者：
Yulong Cui;Junwei Pan;Chong Xu;Junhong Hu
1970年1月5日，中国云南省通海县曲江流域发生7.7级地震，引发多处山体滑坡。本研究下载了1969年2月12日震前和1970年3月17日震后的黑白KeyHole卫星影像，并根据下载的影像在ArcGIS软件平台上对8~10度地震烈度区滑坡进行了目视解译。由此建立了由 640 个滑坡组成的滑坡清单。滑坡主要分布在曲江流域两侧，沿发震断裂——曲江断裂发育；解译的滑坡均为大型滑坡，面积为150~74387平方米。此外，面积1000～10000平方米的滑坡384处，占滑坡总数的60%。受图像质量影响，解译的地震滑坡比其他地震更大，例如2014年鲁甸6.2级地震和2015年尼泊尔7.8级地震。本研究获得的地震滑坡库存可为后续研究提供基础数据。研究结果对高烈度地区地震和地震滑坡防灾减灾具有重要意义。
On January 5, 1970, a Ms 7.7 earthquake occurred in Qujiang River valley, Tonghai County, Yunnan Province, China, with many induced landslides. In this study, the black-and-white KeyHole satellite images were downloaded before the earthquake on February 12 1969, and after the earthquake on March 17, 1970. Then based on the downloaded images, the visual interpretation of landslides in the earthquake intensity district with 8–10 degrees was carried out on the ArcGIS software platform. As a result, a landslide inventory composed of 640 landslides is established. The landslides are mainly distributed on both sides of the Qujiang River valley that developed along the seismogenic fault, Qujiang fault; the interpreted landslides are all large, with an area of 150–74387 m2. In addition, there are 384 landslides with an area of 1000–10000 m2, accounting for 60% of the total number of landslides. Affected by the quality of the images, the interpreted earthquake landslides are larger than those of the other earthquakes, such as the 2014 Ms 6.2 Ludian earthquake and the 2015 Ms 7.8 Nepal earthquake. The seismic landslide inventory obtained in this study can provide basic data for the follow-up research. The findings have substantial implications for earthquake and seismic landslide disaster prevention and mitigation in high-earthquake intensity locations.
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影响因子：
4
作者：
Gorum, Tolga;Korup, Oliver;van der Meer, Freek D.
通讯作者：
van der Meer, Freek D.
2008年5月12日中国汶川7.9级地震引发的三处（接近）滑坡清查及其空间分布统计分析
影响因子：
6.7
作者：
Xu, Chong;Xu, Xiwei;Yao, Xin;Dai, Fuchu
通讯作者：
Dai, Fuchu
DOI：
--
发表时间：
2010
期刊：
Geological Review
影响因子：
--
作者：
Xu Xiwei
通讯作者：
Xu Xiwei
影响因子：
4.6
作者：
Chong Xu;J. H. Shyu;Xi-wei Xu
通讯作者：
Chong Xu;J. H. Shyu;Xi-wei Xu
DOI：
--
发表时间：
2008
期刊：
--
影响因子：
--
作者：
Yin Yueping
通讯作者：
Yin Yueping