简介：在2010Yushu地震以后的二个小时，摇晃的紧张分发用基于地点效果的ShakeMap快速的产生系统被获得，由作者发展了，它集成原因的差错的构造设置，罢工和规模的信息，在西方的中国的焦点的机制solutions.fault破裂进程和变细关系，以及本地地点effects.The结果如下：摇紧张分发的主要的轴被指导NW-SE，平行到Yushu差错；meizoseismal区域到达紧张并且盖住300km2；紧张区域主要沿着原因的差错在区域40km东南和震中的15km西北被散布；由于本地土壤条件，有基岩上的紧张的区域的西北的部分看紧张是否从基岩变换成土壤；有紧张的区域，，分别地测量3,000km2,8,000km2，和24,000km2。

简介：OnApril14,2010at07:49(Beijingtime),acatastrophicearthquakewithMS7.1occurredatthecentralQinghai-TibetanPlateau.TheepicenterwaslocatedatYushucounty,QinghaiProvince,China.Atotalof2036landslidesweredeterminedfromvisualinterpretationofaerialphotographsandhighresolutionremotesensingimages,andverifiedbyselectedfieldinvestigations.Theselandslidescoveredatotalareaofabout1.194km2.Characteristicsandfailuremechanismsoftheselandslidesarelistedinthispaper,includingthefactthatthespatialdistributionoftheselandslidesiscontrolledbyco-seismicmainsurfacefaultruptures.Mostofthelandslidesweresmallscale,causingratherlesshazards,andoftenoccurringclosetoeachother.Thelandslideswereofvarioustypes,includingmainlydisruptedlandslidesandrockfallsinshallowsandalsodeep-seatedlandslides,liquefactioninducedlandslides,andcompoundlandslides.Inadditiontostronggroundshaking,whichisthedirectlandslidetriggeringfactor,geological,topographical,andhumanactivityalsohaveimpactontheoccurrenceofearthquaketriggeredlandslides.Inthispaper,fivetypesoffailuremechanismsrelatedtothelandslidesarepresented,namely,theexcavatedtoesofslopesaccompaniedbystronggroundshaking;surfacewaterinfiltrationaccompaniedbystronggroundshaking;co-seismicfaultslippingaccompaniedbystronggroundshaking;onlystronggroundshaking;anddelayedoccurrenceoflandslidesduetosnowmeltorrainfallinfiltrationatsiteswhereslopeswereweakenedbyco-seismicgroundshaking.Besidesthemainco-seismicsurfaceruptures,slopefissureswerealsodelineatedfromvisualinterpretationofaerialphotographsinhighresolution.Atotalof4814slopefissures,withatotallengthupto77.1km,werefinallymapped.Theseslopefissuresaremainlydistributedontheslopeslocatedatthesoutheasternendofthemainco-seismicsurfacerupturezone,anareasubjecttostrongcompressionduringtheeart

简介：AnearthquakewithM7.1occurredinYushu,QinghaiProvince,China,at07:49a.m.onApril14,2010,accordingtotheChineseSeismicStationNetwork.Thesequenceisafore-mainafter-shocktypesequence.AforeshockwithM4.7occurred2hoursand11minutesbeforethemainshock.Therewere12foreshocksand2385aftershocksuntilJune31,2010.Inwhich,thereare21aftershocksbetweenM3.0andM3.

简介：Theauthorsstudiedtheseismicactivity,precursoryanomaliesandabnormalanimalbehaviorbeforetheApril14,2010MS7.1Yushuearthquake.AnalysisshowedthatanomalieswerenotrichbeforetheMS7.1Yushuearthquake,butprominentanomalieswereobserved,suchasthelongandmid-termtrendanomalycharacterizedbytheseismicquiescenceofMS6.0,MS5.0andMS4.0earthquakes,andtheanomaliesinprecursorobservationofsurfacewatertemperatureinYushuandDelinghaandelectromagneticmeasurementinPingan.Therewerealargenumberofanimalbehavioranomaliesappearingoneweekbeforetheearthquake.AnM4.7earthquakeoccurred130minutesbeforethemainshock.Inthispaper,westudiedthedynamicprocessoftheYushuearthquakepreparationusingtheearthquakefocalmechanismsolutionsontheBayanHarblockboundarysince1996.TheresultsshowthattheKalakunlunM7.1earthquakein1996,theManiM7.5earthquakeandtheYushuMS7.1earthquakehavethesamedynamicprocess.Longandmid-termtrendanomaliesmayberelatedtothedynamicsofevolutionofdifferentearthquakes.Thispaperalsodiscussestherecurrenceintervalofstrongearthquakes,foreshockidentificationandprecursorobservationoftheYushuMS7.1earthquake.

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