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：一、地震基本参数表1　地震基本参数表发震时间年月日时分秒震　中　位　置微　观宏　观东经北纬东经北纬参考地名震级(ＭＬ)震源深度(Ｋｍ)震中烈度　地震类型　1978112305492591184°239°漳浦海外41Ⅴ主震型　注:震中位于海中,表中烈度为估计值。二、烈度分布本次地震震级不高,震中又位于海中,未造成任何破坏,但有感面积大。地震后,在厦门及漳州两地市区近海岸带的部分县城,乡镇所在地共24个点,走访600多人进行座谈形式的调查。调查均位于Ⅳ度烈度区内。地震时,室内大多数人有感觉,室外活动的人有感的较少,少数人从梦中惊醒。人们普遍感到床铺等在摇摆,听到玻璃窗在轻微作响。图6-1　1998

简介：本文应用陆远忠等人提出的孕震空区和逼近地震方法,分析了台湾及其东部海域所有资料较完整的60级以上的地震。结果表明该区普遍存在孕震空区和逼近地震。在判定是否为孕震空区时,采用同样的三个标志。用所得到的数据计算经验公式。最后得出5点初步结论

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.

简介：一、地震基本参数表1　地震基本参数表发震时间年月日时分秒震　中　位　置微　观宏　观东经北纬东经北纬参考地名震级(ＭＳ)震源深度(Ｋｍ)震中烈度　地震类型　199211261847565116°57′25°29′116°57′25°32′连城赖源508Ⅵ主余震型　　表中的宏观震中为Ⅵ度等震线的中心位置,位于微观震中南6公里左右。二、地震烈度分布现场考察共勾划出Ⅵ、Ⅴ、Ⅳ度三条等震线(见图16-1)。图16-1　1992年11月26日连城赖源地震等震线图Ⅵ度区:Ⅵ等震线东起赖源乡东西,向北经莒溪乡余地村南,拐向西南穿过东坑村北及冯地村,到陈地村北再转向北东。呈长轴北东50度展布的椭圆形,长轴长约2

简介：分析了2005年11月26日九江-瑞昌地震震害与当地工程场地条件间的关系，结果表明：当地工程地质条件复杂，水平向变化大，软土发育，存在溶洞，是此次地震灾害严重的一个重要原因。灾后重建应开展地震小区划工作，为抗震设防提供科学依据。

简介：Weuseinterferometricsyntheticapertureradar(InSAR)andbroadbandseismicwaveformdatatoestimateasourcemodelofthe11thJuly,2004MW6.2Zhongbaearthquake,TibetofChina.ThiseventoccurredwithintheseismicallyactivezoneofsouthwesternTibetanPlateauwheretheeast-westextensionoftheuppercrustisobserved.BecauseoflimitationsinonepairofInSARdataavailable,therearetrade-offsamongcentroiddepth,ruptureareaandamountofslip.Availableseismicdatatightlyconstrainthefocalmechanismandcentroiddepthoftheearthquakebutnotthehorizontallocation.Together,twocomplementarydatasetscanbeusedtoidentifytheactualfaultplane,betterconstraintheslipmodelandeventlocation.Wefirstuseregionalseismicwaveformtoestimatepointsourcemechanism,thenInSARdataisusedtoobtainbetterlocation.Finally,ajointinversionofteleseismicP-wavesandInSARdataisperformedtoobtainadistributedmodel.Ourpreferredpointsourcemechanismindicatesaseismicmomentof～2.2×1018N·m(～MW6.2),afaultplanesolutionof171°(342°)/42°(48°)/-83°(-97°),correspondingtostrike/dip/rake,andadepthof11km.Thefaultplanewithstrikeof171°anddipof42°isidentifiedastherupturedfaultwiththeaidofInSARdata.Thepreferredsourcemodelfeaturescompactareaofslipsbetweendepthof5-11kmand10kmalongstrikewithmaximumslipamplitudeofabout1.5m.

简介：1地震基本参数地震名称：江西九江-瑞昌5．7级地震发震时间：2005年11月26口08时49分38．6秒震级：Ms=5．7微观震中：29．7°N、115．7°E（中国地震台网测定）震源深度：10km最大余震：主震当日12时55分，震级M1．5．4极震区烈度：Ⅶ度

简介：［ＢｒｉｅｆＮｅｗｓ］：ＡｎＭｓ＝７．３ｅａｒｔｈｑｕａｋｅｏｃｃｕｒｒｅｄｉｎｔｈｅｓｏｕｔｈｅｒｎＡｎＭｓ＝７．３ｅａｒｔｈｑｕａｋｅｏｃｃｕｒｒｅｄｉｎｔｈｅｓｏｕｔｈｅｒｎｐａｒｔｏｆｔｈｅＴａｉｗａｎＳｔｒａｉｔ（２２．６°Ｎ，１１８．７°...

简介：从异年倍九法（或称异年倍九律）讨论了华北7级以上大震发生日期之间的关系。这种关系对今后在类似季节预测大震的发生日期有一定的参考作用。

简介：同志们:在20世纪接近尾声、21世纪的曙光即将来临的时刻,我省召开了这次福建省防震减灾30年暨福建省地震学会成立20周年纪念大会,这在我省防震减灾事业发展史上具有重大和深远的意义。这次会议不仅是一次回顾历史,全面总结30年实践和探索的经验与成就的大会,也是承前启后、继往开来,为把我省防震减灾事业全面推向21世纪而继续奋斗的誓师大会。首先,我要对参加今天庆祝大会的中国地震局领导和省政府领导以及各界代表表示热烈欢迎!对中国地震局和省政府长期以来对福建省防震减灾工作正确而有力的领导,以及社会各界的关心和支持表示衷心的感谢!对三十年来在我省防震减灾工作岗位上兢兢业业、默默无闻、无私奉献的基层干部职工致