简介：山西水库地震是在最近的年，有少数的一个区域和更弱的地震里的南部的浙江省的重要地震事件。seismicity显示出一个断断续续的特征和组分发。地震网络定位的震中没证明一个占优势的方向和seismogenic结构不是清楚的。在学习，非线性的想象的波浪旅行时间方程被线性化并且解决，并且来源位置，起始的想象的速度和旅行时间剩余被获得。然后，由作为时间加倍标准差，剩余，从经度产生的最大的错误，纬度，深度和想象的速度被计算。基因人口用最大的错误被组织，地震地点的结束结果被基因算法获得。有地震大部分是的表演专注于一架在垂直附近的、向西北面向的差错飞机的这个方法的山西水库地震的重定位的结果，和在飞机和到期的北方，到期的东方和垂直方向的正常之间的包括的角度是46~，44~，并且87~分别地。结果与小地震的全面差错飞机答案的一致。地震的平均深度是4.7km，最大的深度9.5kin，和最小的深度1.7km。震中显示出向西北的狭窄的banded分布，并且焦点的深度沿着西北方向增加了。在长带的西北结束长有大约3.5km的不连续的地震差距。使用Borun模型获得的来源参数的特征不与构造地震的显著地不同。地震压力落下关于0.33MPa，并且平均压力落下是0.88MPa。根据压力掉空间分发，在长带的西北结束的地震断绝片断在一个低压力落下地区。

简介：这份报纸系统地分析了36地震群在并且在江苏省附近，总结了他们的特征并且讨论了在earthquske群和随后的强烈地震之间的关系。它也为先驱的地震群分析了判断标准。在江苏省的地震群在几个区域被集中。他们中的大多数具有大小ML2。0~3。9。为大多数地震群，地震的数字是不到30。为大约55%地震群的时间持续时间是不到15天。一地震群的最大的大小不与地震和时间持续时间的数字成正比。有78%地震群对应于M4的即将来临的地震。6在哪个therere57%发生在一年里，这显示出一个中期、短期的标准。在地震群和未来地震之间的距离分散地被散布。没有地震，发生在象地震群的一样的地点。在大小和未来地震和地震群的紧张的相应的率之间没有好关联。也在在地震群和相应的率的地震的数字之间没有好关联。学习也显示出那对使用在上面它的更好或对整个联合决定地震群的类型。

简介：在3月13,2007日，有M4.7和M4.6的二地震发生在Zhengfang村庄里，Shunchang，自从二地震提供的福建数字地震networks.These的建立，Fujian.TheM4.7地震是在福建区域的最集中的我们与为地震学上的research.This纸分析的珍贵第一手的观察数据，他们的波浪形成并且断定(1)在地震区域的外壳的厚度被估计在附近40km根据观察头波浪批评d

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简介：ＣｒｏｕｎｄｖｅｒｔｉｃａｌｄｅｆｏｒｍａｔｉｏｎｉｎｅａｒｔｈｑｕａｋｅｏｆＧｏｎｇｈｅ，ＱｉｎｇｈａｉＰｒｏｖｉｎｃｅＳｈｏｕ－ＷｅｎＧＯＮＧ（巩守文）ａｎｄＦｅｎｇ－ＹｉｎｇＧＵＯ（郭逢英）（ＳｅｃｏｎｄＣｒｕｓｔａｌＤｅｆｏｒｍａｔｉｏｎＭｏ...

简介：Researchontheseismicvulnerabilityofbuildingstructuresisveryimportantfortheworkofearthquakedisasterpreparednessandmitigation.Onthebasisoftherelatedstudiesoveralongtime,thispaperprovidesseveralseismicvulnerabilitymatricesofbuildingstructureindifferentregionsofSichuanProvince,Pooranti-seismiccapabilityisoneofthefactorsresultingintheearthquakedisastersinthepast.Wecanreduceeconomiclossescausedbyearthquakethroughimprovingtheanti-seismicandpreventionlevelofbuildingstructuresinSichuanProvince.

简介：基于在在中国，关于为在中央南部的湖南省设计地点的地震安全评价的最近的研究，中等地震的新变细关系和自从1970，seismicity数据由现代仪器的地震记录获得了的背景编地震地面运动参数的带状配列地图使用的基本数据，中央南部的湖南省的地震带状配列的新结果被提供。有针网阵列=0.05g的区域显然与以前的那个相比在新地图增加了并且与在最近的years.This结果发生在湖南的中央南部的部分的中等地震的地震灾难特征相对一致的结果表演将有益于研究和编译一新产生在中等地震的地震地面运动参数和地震危险评价的地震带状配列地图活跃区域在中央一

简介：TakingthesouthernpartoftheShanxiProvinceandthewesternpartoftheSichuanProvinceastheexamples,theseismicityparametersofeverypotentialseismiczonehavebeendeterminedbythemaximumlikelihoodmodelwithdifferentdatabasedondifferentmagnitudethresholds,dependingonthedifferentprecisionofdifferentearthquakecatalogs.Accordingtothegeneralseismicriskanalysismodel,theseismicintensityzoningfortwoareashasbeenobtained.

简介：TheexcitingsourceoftheactivesourcerepeatedmonitoringislocatedintheXiliushuiReservoirinZhangye,GansuProvince.ThesystembeganoperatingnormallyonJuly9,2015,andwehadcompletedaperiodof40daysofcontinuousexcitationexperimentbeforeNovember10,2015.Ourresultsrevealthattheairgunsourcehasgoodconsistencyandrepeatability,andthedetectivesystemofactivesourcecanrecordsignalclearly.Theconstructionofactivesourcerepeatedexplorationprojectshasachievedsomeresults,whichcanprovidevaluableexperiencefortheresearchofactivesourcerepeatedexploration.TheobservationdataweobtainedmakesitpossibletofollowthetemporalandspatialvariationsofthedeepstructureoftheQilianMountainareas.

简介：Aqueryregardingthenowcommonlyacceptedepicentrallocationofthe1216MahuearthquakeinLeiboCounty,SichuanProvinceisproposedafterexaminationoflocalhistoricalrecordsofearthquakes,fieldinvestigationoftheMahubarrierlake,studyofgeologicalenvironmentfortheearthquakeandtheavailabledatathenarelocationoftheearthquakeepicenterissuggestedinthepaper.

简介：Inthisarticle,werelocatedtheseismicsourcelocationoftheearthquakesintheMuliareaofSichuan,invertedthefocalmechanismofthelargerearthquakesandanalyzedtherelationshipbetweenthewaterleveloftheJinpingreservoirandthefrequencyoftheearthquakeswarm.Theresultsshowthat:(1)Theepicentersoftherelocatedsmallearthquakeswarmsaredistributedinaseismiczone,andtheearthquakefocaldepthswereintherangeof0-12km.(2)Byanalyzingtheearthquakeswarmspatialdistribution,wefoundthattheswarmsweregeneratedbyonebranchfaultonthewestofXiaojinhefault.(3)Thefocalmechanismofthethreeearthquakeswithmagnitudegreaterthan4.0issignificantlydifferent,withtheshallowsourcethrusteventsaffectedbyverticalstress,andthestrike-slipeventsarerelatedtoregionalstresstectonicactivity.

简介：EarthquakearchaeologicalresearchwasconductedinrecentyearsatfourarchaeologicalexcavationsitesinShandong,focusingontheidentificationandanalysisofthetectonicdeformationphenomena.Thenon-tectonicdeformationphenomenaweredistinguishedatthesiteoftheShangDynastyruinsatDaxinzhuangintheJinansuburbs.InLongshan,sandvein-filledcrackswererecognizedintheculturallayersoftheChengziyasite,ZhangqiuCity.SandveinsonthetrenchwallandsandtubesatthetrenchbottomwerefounddenselydistributedattheShangandZhouDynastyculturallayers,atQinhuangtaisite,BinzhouCity.Thetectonicandnon-tectonicorigincrackswereidentifiedonthecitywalloftheSiteofCapitalofStateQi,LinziCity.InRizhaocity,paralleldistributedsandveinfracturegroupswerefoundintheculturallayerofLongshan-WarringStates-HanDynastyatYaowangchengsite.TypicalconjugateshearfractureswereidentifiedonthecitywalloftheancientcityoftheStateofXue,TengzhouCity.TheabovenaturaldeformationphenomenaareconcentratedintheculturelayersoftheSpringandAutumn-WarringStates-HanDynastiesandbefore,andcharacterizedbyseismicsand-soilliquefactiontraces,whichindicatethattheseregionsmighthavebeenintheseismicactiveepisodesinthecorrespondingperiods.Theaboveinferencehasbeenconfirmedbymicroscopicdataanalysis.

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简介：SeveralearthquakeswithMs≥5.0occurredintheDatongseismicregionin1989,1991and1999,TheprecisefocuslocationoftheearthquakesequencewasmadebytherecordsoftheremotesensingseismicstationnetworkinDatong.Usingthatdatatogetherwithmacro-intensitydistributionandfocalmechanismsolutions,weanalyzethedifferenceamongthreesubsequences.Theresultsshowthatthefocalfaultofthe1999Ms5.6earthquakewasaNWW-trendingleft-lateralstrike-slipfault.Itis16kmlongand12kmwide.Itdevelopedatthedepthof5kmandisnearlyverticalindip.Thetwopreviousearthquakesubsequences,however,weregeneratedbyactivityalongNNE-trendingright-lateralstrike-slipfault.Itcanbefoundthattherupturedirectioinofthe1999earthquakehaschanged.Itisgenerallyfoundthatarupturezonehasmorethantwodirectionsandhasdifferentstrengthalongthesetwodirections.Thecomplicatedegreeoffocalcircumstanceisrelatedtothetypeofearthquakesequences.ThereistheNE-trendingDawangcunfaultandtheNW-trendingTuanbufaultintheseismicregion,butnoproofindicatesaconnectionbetweenfocalfaultsandthesetwotectonicfaults.Thefeaturethatfocalfaultsofthreesubsequencesarestrike-slipisdifferentfromthatofthetwotectonicfaults.Itissuggestedthatthe1999earthquakesubsequencewaspossiblygeneratedbyanewrupture.

简介：Xizhang沟被定位太原城市的10km西北，山西省，在Jiaocheng差错zone.The的北片断上的4.6m高度的一个趋势NNW陡坡前面，沟的尺寸是在长度的108m，在宽度的8m，并且在depth.There的10m是在trench.The揭示的18根地平线上面的阶层是沙的沃土；差错的downthrown块的上面的阶层是石子，更低的在差错的upthrown块上是棕色的沃土和沙的loam.The阶层的interbed是沙的l

简介：BasedonSwaverecordsofdeepteleseismsonDigitalSeismicNetworkofShanxiProvince,shearwavevelocitystructuresbeneath6stationswereobtainedbymeansofSwavewaveformfitting.Theresultshowsthatthecrustisthickinthestudiedregion,reaching40kminthicknessunder4stations.Thecrustallalternativeshighvelocitylayerwithlowvelocityone.Thereappearvariedvelocitystructuresfordifferentstations,andthestationsaroundthesametectonicregionexhibitsimilarstructurecharacteristics.Combinedwithdominantdepthdistributionofmanysmall-moderateearthquakes,thecorrelationbetweenseismogeniclayersandcrustalstructuresofhighandlowvelocitylayershasbeendiscussed.

简介：Wecomputedsourceparametersfor143earthquakeswithM_L≥1.0occurringfromJanuary,2011toMarch,2014usingwaveformdatarecordedbytheNuozhaduandJinghongReservoirSeismicNetworks.Then,thevariationofseismicactivityandthecharacteristicsofsourceparametersbeforeandaftertheimpoundmentofthereservoirwereinvestigated.Theresultsshowthat:(1)theseismicactivityincreasedobviouslyaftertheimpoundment,especiallyduringthe3-4monthsafterimpoundment;(2)thefocaldepthsoftheearthquakesoccurringinthereservoirareaareshallowerthantheearthquakesoccurringoutsidethereservoirareaintheinitialstageofimpoundment,butafteratime,thedifferencewasgraduallyreduced;(3)cornerfrequencyvarieswiththeseismicmomentandthelog-linearrelationshipismoreobviousafterimpounding;(4)stressdropandapparentstressincreasewithincreasingseismicmoment,moreovertheyarelowerfortheearthquakesoccurringinthereservoirareaafterimpoundingthanthoseoccurringoutsidethereservoirareaorbeforeimpoundingwiththesameseismicmoment;(5)theeffectofreservoirimpoundmentonanearthquakecanreachadepthof10km,andthemaximumeffectisseenatadepthof3km-6km,andthedifferencesofseismicactivityandaverageapparentstressbetweentheinsideandoutsideofthereservoiraresignificant.

简介：在这份报纸，扩大因素ks偷看有在在山东省上的班和地点上的不同exceedance概率的地面运动被分析从班地点的358地上凿穿和班的140地上凿穿收集的土壤层的地震反应数据估计地点。从结果，一个人能结束那1ks的scatter阴谋通常服从正常分布；有输入地面的力量的增加的2ks减少打手势，它比在班lI地点在班地点是更明显的；3随磨擦运动输入的基岩接口的深度的增加，为类地点，ks逐渐地增加直到到稳定的值深度什么时候到达直到约20米或更大。然而为班地点，ks对深度感觉迟钝；4为班地点的ks的一般水准是1.47，比在中国GB18306-2001的地震地面运动参数带状配列地图使用了那稍微大。另外，在在在山东省上的山峰地面加速的不同层次的班和地点上的kspreliminarily在纸被讨论。

简介：Inthepaper,sourcemechanismsof33small-moderateearthquakesoccurredinYunnanaredeterminedbymodelingofregionalwaveformsfromYunnandigitalseismicnetwork.TheresultshowsthatmostearthquakesoccurredwithinorneartheChuandianrhombicblockhavestrike-slipmechanism.TheorientationsofmaximumcompressivestressesobtainedfromsourcemechanismarechangedfromNNW-SSNtoNSintheareasfromnorthtosouthoftheblock,andtensilestressesaremainlyinENE-WSWorNE-SE.IntheeasternTibetanPlateau,theorientationsofmaximumcompressivestressradiatetowardoutsidefromtheplateau,andthetensilestressorientationsmostlyparalleltoarcstructures.Near28°Ntheorientationsofbothmaximumcompressivestressandtensilestresschangedgreatly,andtheboundaryseemstocorrespondtothesouthwesternextendedlineofLongmenshanfault.OutsideoftheChuandianrhombicblock,theorientationsofPandTaxesaresomedifferentfromthosewithintheblock.Thecomparisonshowsthatthesourcemechanismofsmall-moderateeventspresentedinthepaperisconsistencewiththatofmoderate-strongearthquakesdeterminedbyHarvardUniversity,whichmeansthesourcemechanismofsmall-moderateeventscanbeusedtostudythetectonicstressfieldinthisregion.