文章摘要

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Author(s):: ZHANG Fanghao; LU Yongkun; DENG Shurong; DU Haoguo; HE Shifang; (Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)

Keywords:: earthquake disaster; regional characteristics; intensity; direct economic loss; casualties

摘要:: 对1992—2018年云南地区发生的72次破坏性地震事件的震害资料进行空间化处理和数理统计,选取地震烈度、人员伤亡数量、直接经济损失这3个重要的灾害损失指标进行特征分析和研究。结果表明:云南地区的震害具有明显的分区特征,区域差异显著。在同等级别的地震破坏下,滇东北地区震害最重,滇西—滇西北地区震害次之,滇南—滇西南地区震害最轻。通过统计分析分别给出了3个特征分区震级与烈度、人员伤亡、直接经济损失之间的关系。

Abstract:: In this paper we firstly spatialize the earthquake-damage data from 72 destructive events which occurred in Yunnan from 1992 to 2018.Then we select three main indicators of disaster losses-intensity area,number of casualties,and direct economic losses for feature analysis.We find that the earthquake disasters in Yunnan are marked with apparent regional characteristics:caused by the earthquakes with the same magnitude,earthquake damages in north-east Yunnan are severest; earthquake damages in west and north-west Yunnan are severe; the ones in south and south-west Yunnan are less severe.Finally,by mathematical statistics we deduce the relations between magnitude and intensity,the relations between magnitude and casualty,and the relations between magnitude and economic losses in three zones of Yunnan.