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16220106JOURNALOFGEOMECHANICSVol.16No.2Jun.20101006-6616201002-0129-082010-05-1640902059DZLXJK2009061212010914025。1978-。E-mailyaoxinphd@163.com11100081InSAR100081MS7.1PALSAR2010115417“+DEM”InSAR。、1NWW70km42316km。D-InSAR、。P315.2A020018.1、200881～82010414074940.7MS7.19～11。CENC33.2°N96.6°E14km。USGS±6.6km33.271°N96.629°E10kmMW6.9。42117222084。。。20～30km2010。InSAR。32010417ALOS4000km2MS7.1。InSARALOS。11.1、4548m。、、。、、、、、、、。214、—、—。－1。7.1－、12～131。1.2－。－、、、500km。－。。14。－、、、、1。－－0.5～1.5m35m。－①。8mm/a10mm/a②。10mmGPS10mm①。N70°W173812236.518963－7.019793296.2②2006718、195.0、5.6、5.41520104147.1－031①②2010.“7.1.”http//www.eq-igl.ac.cn/2010.“－.”frominternet.2InSAR1－141997Fig.1AmapshowingthedistributionmapofGznai-YushuactivefaultzoneafterZhouRongjun1997andInSARcoveringarea。2JAXA2010417PALSAR12010115。ESAEnviSAT2010427。ALOS487650640PALSAR2010115201041723.6cm34.3°+684m。、、D-InSAR。InSARGPSInSAR。InSARLOSLookofsightLOS。ALOSPALSAR1312010θ34.3°NE81.84°、、dLOS=dupdnde0.83－0.08－0.56T1dLOS—dup—dn—de—。1—。SRTMDEM。2InSARFig.2WrappedInSARstripimageofYushuearthquakeco-seismicdeformation2312InSAR3D-InSAR2－π～πD-InSARLOS11.8cmLOS。NW—SE70km40kmSENW2500km2NW16km2ACENC5km2B。3NWW72km。SWNE。35cm25cm50cm38cmNWW16kmLOSLOS1.5m。3Fig.3InSARLOSDeformationofYushuearthquake5A～E3a-a′～e-e′3312010ALOSCENCB、C、DLOS15cmELOS10cm5SENWA～E。c-c′、e-e′。D-InSARCENC、3③4。490mSRTMFig.4SurfacerupturesbasedonInSARBackgroundisthe90mSRTMhillshademap4InSAR、1NWW70km343。2431③2010.7.1http//www.cea.gov.cn2InSAR。316km。InSAR、。。InSARInSARGPS。D-InSAR、、、、、、、。1.J.2009152131～141.ZHANGYong-shuangSHIJu-songSUNPingetal.CouplingbetweenendogenicandexogenicgeologicalprocessesintheWenchuanearthquakeandexampleanalysisofgeo-hazardsJ.JournalofGeomechanics2009152131～141.2.5.12J.2008142109～116.ZHANGYong-shuangLEIWei-zhiSHIJu-songetal.Generalcharacteristicsof5.12earthquake-inducedgeo-hazardsinSichuanJ.JournalofGeomechanics2008142109～116.3.5.12MS8.0J.2009152142～150.TANCheng-xuanSUNYeWUShu-renetal.AconsiderationonregionalcrustalstabilityassessmentafterMS8.0WenchuanstrongearthquakeinChinaJ.JournalofGeomechanics2009152142～150.4.5.12J.2008143193～200.WANGLian-jieZHOUChun-jingSUNDong-shengetal.CoulombstresschangescausedbyWenchuanearthquakeanditsinfluenceonseismicactivityintheadjacentareaJ.JournalofGeomechanics2008143193～200.5.5.12J.2009152105～113.WANGLian-jieCUIJun-wenZHOUChun-jingetal.NumericalmodelingforWenchuanearthquakemechanismJ.JournalofGeomechanics2009152105～113.6.J.2009152114～130.PENGHuaMAXiu-minJIANGJing-jie.StabilityandstressmeasurementneartheQingchuanfaultinthenorthernLongmenMountainsJ.JournalofGeomechanics2009152114～130.7.J.200814297～108.PENGHuaMAXiu-minJIANGJing-jie.AnalysisofthevolumestraindatafromtheShandanin-situstressMonitoringStationJ.JournalofGeomechanics200814297～108.8.J.2009152151～161.YAOXinZHANGYong-shuang.Co-seismicdeformationof5.12WenchuanearthquakebasedonD-INSARJ.JournalofGeomechanics2009152151～161.9.J.2010162115～124.MAYin-shengZHANGYong-shuangHUDao-gong.etal.ThesurfacerupturesandthemacroscopicalepicenterofYushuMS7.1EarthquakeJ.JournalofGeomechanics2010162115～124.10.InSARJ.20101621295312010～136.YAOXinZHANGYong-shuangYANGNongetal.D-InSARDeformationObservationandPreliminaryAnalysisoftheMS7.1YushuEarthquakeJ.JournalofGeomechanics2010162129～136.11.MS7.1J.2010162137～145.WANGLian-jieCUIJun-wenWANGWeietal.NumercalmodelingofYushuMS7.1earthquakemechanismJ.JournalofGeomechanics2010162137～145.12.J.200882121668～1678.ZHANGYue-qiaoYANGNongSHIWeietal.NeotectonicsofEasternTibetandItsControlontheWenchuanEarthquakeJ.ACTAGEOLOGICASINICA200882121668～1678.13.J.200882121644～1667.JIShao-chengWANGQianSUNSheng-sietal.ContinentalExtrusionandSeismicityinChinaJ.ACTAGEOLOGICASINICA200882121644～1667.14.－J.1997192115～124.ZHOURong-junWENXue-zeCHAIChang-xingetal.RecentEarthquakesandAssessmentofSeismicTendencyonTheGanziYushuFaultZoneSeismologyandGeologyJ.SEISMOLOGYANDGEOLOGY1997192115～124.15.20065.0、5.6、5.4J.200614371～377.DUChang-tingLIWen-qiaoLUNingetal.CharacteristicsofLossandHazardsofYushuEarthquakeswithMS=5.05.6and5.4inQinghaiProvince2006J.TechnologyforEarthquakeDisasterPrevention200614371～377.D-INSAROBSERVATIONOFEARTHSURFACEDEFORMATIONINTHEMS7.1YUSHUEARTHQUAKEYAOXinZHANGYong-shuangYANGNongXIONGTan-yuKeyLaboratoryofNeotectonicMovement＆GeohzardsMinistryofLandandMineralResourceInstituteofGeomechanicsChineseAcademyofGeologicalSciencesBeijing100081ChinaAbstractA“TwoPaths+DEM”interferometricprocesswasmadeforthePALSARSARdatabeforeJan.152010andafterApr.172010theYushuMS7.1Earthquakewhichyieldedahigh-qualityco-seismicInSARstripimageandabsolutelysurfacedeformation.Basedonthedeformationscaledeformationmagnitudeanddeformationgradientincombinationwithtectonicsettingoftheareathefollowingconclusionscanbedrawn1Yushuearthquaketriggereda70-kmNWW-extendingmutationbeltwithasouthernsectionShowinggreaterdislocationanddeformationgradientwhichwillinducesurfacerapturesandNo.4segmentinnorthwesternpartshowingweakerdeformationandnorupturesonthegroundsurface.2TheSARmotivedirectionsfrombothsidesofmutationbeltindicateadominantsinistralmovementofseisgenic