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1983年2月17日曲靖发生M_s4.6级地震,微观震中位于曲靖东南20公里(25°23′/N、103°58′E)。根据烈度考察资料宏观震中在曲靖三宝公社亮子到川龙村一带,在曲靖东南10—12公里,有感范围长轴呈北东向分布,长约120公里,包括曲靖、沾益、富源、马龙、陆良和师宗等六县,有感面积达4568平方公里。 三宝地震震中烈度为六度,从三宝公社的桥头村到曲靖县城南北长约20公里的南盘
On February 17, 1983, an M_s4.6 earthquake occurred in Qujing and the microseismic epicenter was located 20 kilometers southeast of Qujing (25 ° 23 ’/ N, 103 ° 58’E). According to the survey data of intensity, the macro epicenter is located in the area of Quelong Long Village of Qujing Sambo Commune, 10-12 kilometers southeast of Qujing. The long axis of the range of sensation is northeastward and about 120 km long, including Qujing, Zhanyi, Fuyuan, Malong , Luliang and Shizong six counties, a sense of area of 4568 square kilometers. The magnitude of the earthquake struck in Sambo was six degrees. From Qiaotou Village in Sambo commune to Nanpan, about 20 km north and south of Qujing County