摘要
九寨沟地震发生于2017年8月8日,震中位于四川省阿坝州九寨沟县境内,北纬33.20度,东经103.82度,震级达Ms 7.0级,震源深度约20 km。针对此次地震引起的地表形变,本研究利用哨兵一号雷达影像,运用D-InSAR(差分干涉雷达)技术获取了地震形变场数据。结果表明:此次地震地表最大形变达20.5 cm,形变严重区集中在比芒村、漳扎镇、彭布寨3个村落以及九寨沟景区中。本研究结论与其他相关研究具有较高的一致性,表明D-InSAR技术在地震形变监测中相比传统监测技术具有一定优势,可以作为一种地表形变监测的重要手段。
The Jiuzhaigou earthquake occurred on August 8,2017.The epicenter was located in Jiuzhaigou County,Aba Prefecture,Sichuan Province.The earthquake was 33.20 degrees north latitude and 103.82 degrees east longitude,with a magnitude of 7.0 Ms and a focal depth of 20 kilometers.According to the surface deformation caused by the earthquake,this research uses Sentry 1 radar image and D-InSAR(differential interferometer radar)technology to obtain the seismic deformation field data.The results showed that the the maximum surface deformation of the earthquake was 20.5 cm,and the serious deformation areas were concentrated in Bimang Village,Zhangzha Town,Pengbuzhai Village and Jiuzhaigou scenic spot.The conclusion of this study is in good agreement with other relevant studies,indicating that D-InSAR technology has certain advantages compared with traditional seismic deformation monitoring technology,and can be used as an important means of surface deformation monitoring.
作者
张天棋
Zhang Tianqi(School of Environment and Resource,Southwest University of Science and Technology,Mianyang,China)
出处
《科学技术创新》
2023年第11期14-17,共4页
Scientific and Technological Innovation
关键词
九寨沟地震
地表形变
D-INSAR技术
earthquake of Jiuzhaigou
surface deformation
technology of D-InSAR
