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基于手机位置数据的地震灾情指标选择
庞晓克1, 聂高众1, 张昕2, 李华癑3, 夏朝旭1, 范熙伟1, 魏本勇1
1.中国地震局地质研究所, 北京 100029;2.浙江每日互动网络科技股份有限公司, 杭州 310026;3.中国地震台网中心, 北京 100045
摘要:
选取四川阿坝州九寨沟县MS7.0地震、新疆博尔塔拉州精河县MS6.6地震、四川广元市青川县MS5.4地震作为案例分析,绘制活跃WiFi数量、无线网络联网设备数量、汇总在线设备数量、活跃基站数量等4种地震灾情指标在地震发生前后数量变化的折线图。根据与地震前1天变化情况的对比分析,验证地震灾情指标的可用性,选取出效果好的指标,这对进一步研究震后快速获取极震区位置、影响场方向等具有重要意义。
关键词:  手机位置数据  地震灾情指标  地震应急
DOI:
分类号:P315
基金项目:国家重点研发计划项目(2018YFC1504503、2018YFC1504403)、“大中城市地震灾害情景构建”重点专项(2016QJGJ14)共同资助
Selection of Earthquake Disaster Index Based on Mobile Phone Position Data
Pang Xiaoke1, Nie Gaozhong1, Zhang Xin2, Li Huayue3, Xia Chaoxu1, Fan Xiwei1, Wei Benyong1
1.Institute of Geology, China Earthquake Administration, Beijing 100029, China;2.Zhejiang Merit Interactive Network Technology Co. Ltd., Hangzhou 310026, China;3.China Earthquake Networks Center, Beijing 100045, China
Abstract:
Four earthquakes with MS7.0 in Jiuzhaigou, Sichuan, MS6.6 in Jinghe County, Boltara Prefecture, Xinjiang, MS5.4 in Qingchuan County, Guangyuan City, Sichuan, and MS4.8 in Rongchang District, Chongqing, were selected as case studies. We draw the line charts of the four earthquake disaster indices(the number of active WiFi, the number of wireless network networking equipment, the number of online equipment, the number of active stations) before and after the occurrence of earthquake to show their changes in number. the availability of earthquake disaster index is verified by comparing it with that of the previous day, and the effective index is selected, which is convenient for further research on the rapid acquisition of the location of the extreme earthquake area and the direction of the influence field after the earthquake.
Key words:  Mobile phone location  Earthquake disaster index  Earthquake emergency