姜鑫,王世杰,李伟,杨臻康

• 1:兰州交通大学测绘与地理信息学院
• 2:地理国情监测技术应用国家地方联合工程研究中心
• 3:甘肃省地理国情监测工程实验室
• 4:青海省地理空间和自然资源大数据中心

摘要(Abstract)：

针对2020年3月31日斯坦利地震造成同震形变场及断层运动特征的研究，该文基于D-InSAR技术获取了斯坦利地震同震形变信息。基于两步反演法，获取了发震断层分布式滑动分布，该方法通过非线性反演获取了斯坦利地震断层几何参数，通过线性反演得到断层面上的精细滑动分布。同震形变结果表明：斯坦利地震升轨隆升形变量24.2 cm,沉降量12.5 cm,降轨隆升形变量22.3 cm,沉降量14.1 cm。滑动分布结果显示：断层破裂未延伸至地表，断层滑动以左旋走滑为主，主要集中在地下10～12 km,最大滑动量约为0.9 m,出现在地下12 km处。

关键词(KeyWords)： 斯坦利地震;InSAR;同震形变;滑动分布

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41861061);国家自然科学基金重点项目(41930101);; 兰州交通优秀研究平台支持项目(201806);; 2020年兰州交通大学“天佑青年托举工程人才”项目(李伟);; 兰州交通大学天佑创新团队项目(TY202001);兰州交通大学青年科学研究基金项目(2019003);; 中国博士后科学基金项目(2019M660091XB);; 2020年甘肃省青年科技基金计划(20JR10RA271);; 2020年甘肃省“青年科技人才托举工程”项目(李伟);; 2020年甘肃省高等学校创新能力提升项目(2020A-037);; 甘肃省优秀研究生“创新之星”项目(2021CXZX-546)

作者(Author): 姜鑫,王世杰,李伟,杨臻康

DOI: 10.16251/j.cnki.1009-2307.2022.04.003

参考文献(References)：

• [1]LIBERTY L M,LIFTON Z M,DYLAN MIKESELLT.The 31 March 2020 Mw6.5 Stanley,Idaho,earthquake:Seismotectonics and preliminary aftershock analysis[J].Seismological Research Letters,2021,92(2A):663-678．
• [2]POLLITZ F F,HAMMOND W C,WICKS C W.Rupture process of the Mw6.5 Stanley,Idaho,Earthquake inferred from seismic waveform and geodetic data[J].Seismological Research Letters,2020,92(2A):699-709．
• [3]THACKRAY G D,RODGERS D W,STREUTKERD.Holocene scarp on the Sawtooth fault,central Idaho,USA,documented through LiDAR topographic analysis[J].Geology,2013,41(6):639-642．
• [4]BENFORD B,CROWLEY J,SCHMITZ M,et al.Mesozoic magmatism and deformation in the northern Owyhee Mountains,Idaho:Implications for along-zone variations for the western Idaho shear zone[J].Lithosphere,2010,2(2):93-118．
• [5]MARSHALL A R,LEE BLANKENSHIP H,CONNORW P.Genetic characterization of naturally spawned snake river fall-run chinook salmon[J].Transactions of the American Fisheries Society,2000,129(3):680-698．
• [6]GIORGIS S,TIKOFF B,KELSO P,et al.The role of material anisotropy in the neotectonic extension of the western Idaho shear zone,McCall,Idaho[J].Geological Society of America Bulletin,2006,118(3/4):259-273．
• [7]BUDY P,THIEDE G P,BOUWES N,et al.Evidence linking delayed mortality of snake river salmon to their earlier hydrosystem experience[J].North American Journal of Fisheries Management,2002,22(1):35-51．
• [8]HE X L,LI H B,WANG H,et al.A new insight into the influence of composition of fault rocks on aseismic and seismic fault slip[J].Acta Geologica Sinica-English Edition,2019,93(3):760-762．
• [9]GOLDSTEIN R M,ZEBKER H A,WERNER C L.Satellite radar interferometry:two-dimensional phase unwrapping[J].Radio Science,1988,23(4):713-720．
• [10]李志才，张鹏，金双根，等．基于GPS观测数据的汶川地震断层形变反演分析[J]．测绘学报，2009,38(2):108-113.(LI Zhicai,ZHANG Peng,JIN Shuaggen,et al.Wenchuan earthquake deformation fault inversion and analysis based on GPS observations[J].Acta Geodaetica et Cartographica Sinica,2009,38 (2):108-113．）
• [11]HANSSEN,RAMON F.Data analysis and interpretation for deformation monitoring[J].Springer Netherlands,2001,10(5):161-196．
• [12]许才军，周力璇，尹智．2013年Ms7.0级中国芦山地震断层曲面模型的构建及其滑动分布的大地测量反演[J]．武汉大学学报（信息科学版），2017,42(11):1665-1672.(XU Caijun,ZHOU Lixuan,YIN Zhi.Construction and geodesy slip inversion analysis of2013 Ms7.0Lushan in China earthquake’s curved fault model[J].Geomatics and Information Science of Wuhan University,2017,42(11):1665-1672．）
• [13]OKADA Y.Surface deformation due to shear and tensile faults in a half space[J].Bulletin of the Smological Society of America,1992,82(2):1018-1040．
• [14]ZHANG H M,LIU X L,LIU H.The improved method of simplex-simulated annealing residual statics[J].Progress in Geophysics,2004(2):341-347．
• [15]卜璞，李朝奎，杨文涛，等．D-InSAR与最优化算法的采空区几何参数反演[J]．测绘科学，2021,46(5):143-152.(BU Pu,LI Zhaokui,YANG Wentao,et al.Inversion of goaf geometric parameters based on D-InSAR and optimization algorithm[J].Science of Surveying and Mapping,2021,46(5):143-152．）
• [16]丛超，米曽真．序列蒙特卡洛算法的数字地图线状特征跟踪模型[J]．测绘科学，2018,43(5):5-12.(CONGChao,MI Zengzhen.A sequential Monte Carlo based linear feature tracking model for digital maps[J].Science of Surveying and Mapping,2018,43(5):5-12．）
• [17]温扬茂，许才军，何平，等．多源数据联合反演权比确定及玉树地震同震断层滑动分布反演研究[J]．科技资讯，2016,14(18):180.(WEN Yangmao,XU Caijun,HE Ping,et al.Weight ratio determination of multisouce data and inversion of fault slip distribution of Yushu earthquake[J].Science&Technology Information,2016,14(18):180．）
• [18]WANG X H,XU C J,WEN Y M,et al.The 2016Mw6.0 Hutubi earthquake:a blind thrust event along the Northern Tianshan front[J].Journal of Asian Earth Sciences,2019,173(15):79-87．
• [19]向淇文，潘建平，张定凯，等．Sentinel-1A数据的四川宜宾Ms6.0同震形变分析[J]．测绘科学，2021,46(3):61-66.(XAING Qiwen,PAN Jianping,ZHANGDingkai,et al.Analysis of co-seismic deformation of Sichuan Yibin Ms6.0based on Sentinel-1A data[J].Science of Surveying and Mapping,2021,46(3):61-66．）
• [20]STEIN R S.Progressive failure on the Northern Anatolian fault since 1939 by earthquake triggering[J].Geophysical Journal International,1997,128(3):594-604．
• [21]TODA S,STEIN R S,REASENBERG P A,et al.Stress transferred by the 1995 Mw6.9 Kobe,Japan,shock:effect on aftershocks and future earthquake probabilities[J].Journal of Geophysical Research Solid Earth,1998,103:24543-24565．
• [22]WANG S,XU C J,WEN Y M,et al.Slip model for the 25 November 2016 Mw6.6 Aketao earthquake,Western China,revealed by Sentinel-1 and ALOS-2observations[J].Remote Sensing,2017,9(4):325-340．
• [23]CHOULIARAS G,DRAKATOS G,PAVLOU K,et al.Stress distribution and seismicity patterns of the2011seismic swarm in the Messinia basin,(SouthWestern Peloponnesus),Greece[J].Natural Hazards and Earth System Sciences,2013,13(13):45．
• [24]FREED,ANDREW M.Earthquake triggering by static,dynamic,and postseismic stress transfer[J].Annual Review of Earth&Planetary Sciences,2005,33(1):335-367．
• [25]ZHU S,MIAO M.How did the 2013Lushan earthquake(Ms=7.0)trigger its aftershocks?Insights from static coulomb stress change calculations[J].Pure&Applied Geophysics,2015,172(10):2481-2494．
• [26]KUSUMAWATI D,SAHARA D P,WIDIYANTOROS,et al.Fault instability and its relation to static coulomb failure stress change in the 2016 Mw6.5Pidie Jaya Earthquake,Aceh,Indonesia[J].Frontiers in Earth Science,2021,8:559434．
• [27]STECK L K,PHILLIPS W S,MACKEY K,et al.Seismic tomography of crustal P and S across Eurasia[J].Geophysical Journal of the Royal Astronomical Society,2010,177(1):81-92．
• [28]EG A,SWA D,PS B,et al.Identifying the most explainable fault ruptured of the 2018Palu-Donggala earthquake in Indonesia using coulomb failure stress and geological field report[J].Geodesy and Geodynamics,2020,11(4):252-257．
• [29]JIN Z T,WAN Y G,LIU Z C,et al.The static stress triggering influences of the 2017 Ms7.0 Jiuzhaigou earthquake on neighboring areas[J].Chinese Journal of Geophysics2019,62(4):1282-1299．
• [30]MULARGIA F,BIZZARRI A.Earthquake friction[J].Physics of the Earth&Planetary Interiors,2016,118-123．
• [31]CRONE A J,HALLER K M.Segmentation and the coseismic behavior of basin and range normal faults:examples from east-central Idaho and Southwestern Montana,USA[J].Journal of Structural Geology,1991,13(2):151-164．
• [32]BURBERRY C M,CANNON D L,COSGROVE J W,et al.Fracture patterns associated with the evolution of the Teton anticline,Sawtooth Range,Montana,USA[J].Geological Society London Special Publications,2019,487(1):487.