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  • 简介:Earthquakesareaseriousnaturaldisasterfacedbycountriesallovertheworld.ResearchonearthquakehazardmitigationareimportantpartsofearthquakescienceandisafeatureofChina'sdevelopmentofearthquakescience.Inrecentyears,theMinistryofScienceandTechnology(MOST)ofthePeople'sRepublicofChina,theNationalNaturalScienceFoundationofChina(NSFC)andtheChinaEarthquakeAdministration(CEA)haveattachedgreatimportancetobasicresearchonearthquakehazardmitigation,andnewopportunitiesandchallengeshaveemerged.ThispapercollectstheapplicationsandapprovalsoftheNationalKeyR&DProgramandtheNSFCprojectsundertakenbytheresearchinstitutesoftheCEAsysteminrecentyears.TheCEAsystemhasreceivedfundinginthe13th“Five-yearPlan”for“Monitoring,EarlyWarningandPreventionofMajorNaturalDisaster”.TheimplementationoftheseprojectsisexpectedtoprovidesupportforthebasicscienceandappliedresearchoftheCEAsystem.IntheNSFC,thenumberofapplicationsfromtheCEAsystemisrelativelystable,andthefundingrateisslightlyhigherthantheaverageforthedepartmentofearthscience.Althoughnodetailedstatisticalanalysishasbeenperformed,theCEAsystemstillhasroomforimprovementintheapplicationoftalentandmajorprograms.Ihopethatthebriefreviewofnewopportunitiesthathavearoseinrecentyearsdescribedinthisarticlecanprovidesomebackgroundandnewthinkingforfuturechallenges.

  • 标签: EARTHQUAKE HAZARD MITIGATION Basic research Science
  • 简介:TheDatongearthquakeanditsanomaloustiltfieldAn-FuNIU(牛安福);Yi-LinWU(吴翼麟);De-FuCHEN(陈德福)andXiao-JunLI(李晓军)(InstituteofSeismology...

  • 标签: ground TILT TIDE EARTHQUAKE MIGRATION Datong
  • 简介:Thisjournal,publishedbiannually,isestablishedbytheInstituteofEngineeringMechanics(IEM),ChinaEarthquakeAdministration,incooperationwiththeMultidisciplinaryCenterforEarthquakeEngineeringResearch(MCEER),UniversityatBuffalo,StateUniversityofNewYork,topromotescientificexchangebetweenChineseandforeignscientistsandengineerssoastoimprovethetheoryandpracticeofearthquakehazardsmitigation,preparedness,andrecovery.

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  • 简介:Thisjournal,publishedbiannually,isestablishedbytheInstituteofEngineeringMechanics(IEM),ChinaEarthquakeAdministration,incooperationwiththeMultidisciplinaryCenterforEarthquakeEngineeringResearch(MCEER),UniversityatBuffalo,StateUniversityofNewYork,topromotescientificexchangebetweenChineseandforeignscientistsandengineerssoastoimprovethetheoryandpracticeofearthquakehazardsmitigation,preparedness,andrecovery.

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  • 简介:ThispaperdescribesbrieflytherecentadvancesandacievementsoftheresearchprojectsconductedbytheInstituteofEngineeringMechanics(IEM)intheperiodoftheNinthFive-YearPlan(1995-2000)withthesupportoftheChinaSeismologicalBureau(CSB),Theseprojectsarerelatedwithkeyproblemsinthefieldofearthquakeengineering.Theyare:developmentofthemethodsfordeterminingearthquakeresistantdesignloadlevel,studyonmechanismsofearthquakedamagetobuildings.developmentofnewtechnologyofbaseisolation,andstudyonearthquakedamagepredictionandseismiclosssassessmentmethods.Throughthesestudies,quiteanumberofproblemshaveeensolvedandsomeofthemhaveeenappliedinearthquakeengineeringdesignandpractice.

  • 标签: 地震预报 地震损失评估 地震工程学 抗震能力
  • 简介:由于有限金融资源和挑战性的地理条件,在中国的地震观察网络的数字仍然是很小的,他们不是广泛地分布式的。因此,在地震以后获得的可得到的地震记录被限制了。在这份报纸,在不同条件下面获得强壮的运动isolines的汽车产生方法被建议。验证这些方法的精确性,包括到2008Wenchuan地震的申请,一些例子被给。

  • 标签: 地震地面运动 等值线 地震观测网 地理条件 自动生成 挑战性
  • 简介:Thisjournal,publishedbiannually,isestablishedbytheInstituteofEngineeringMechanics(IEM),ChinaEarthquakeAdministration,incooperationwiththeMultidisciplinaryCenterforEarthquakeEngineeringResearch(MCEER),UniversityatBuffalo,StateUniversityofNewYork,topromotescientificexchangebetweenChineseandforeignscientistsandengineerssoastoimprovethetheoryandpracticeofearthquakehazardsmitigation,preparedness,andrecovery.

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  • 简介:Itiswellknownthattherearesometorsionaldamagesinearthquakes.InTaibaipark,Jiangyoucity,Sichuanprovince,mostofthestonestatues,whichwereplaceduponthebanistersofonezigzagbridge,exhibiteddifferenttorsionalphenomenain2008Wenchuanearthquake.Thispaperintroducesthetorsionalphenomenaofallthestatuesonthezigzagbridgefirstly.Thenoneeccentricitymodelisestablishedandtheequivalentrotationalaccelerationsarecalculatedinordertoanalyzethecausesofthetorsionaldamage.Inaddition,thetorsionalcomponentsaresynthesizedbyusingtranslationaccelerationsrecordedatJiangyoustationintheWenchuanearthquake.Theresultsshowthattheequivalentrotationalaccelerationislargerthanthesynthesizedrotationalcomponents,whichsuggeststhatthetorsionalphenomenaofthestatuesonthezigzagbridgemightmainlycomefromitseccentricity.ThecomparisonbetweentheestimatedtorsionalcomponentatJiangyouandthatpresentedbyTrifunacshowsthattheyareinthesameorder.Theresearchim-pliesthatthetorsionalphenomenainearthquakesareverycomplicated,andnotonlycausedbytorsionalmotions.

  • 标签: 扭转破坏 大地震 汶川 转动部件 加速度 组成部分
  • 简介:与在中国的经济的快速的开发,很快变化的地震网络过时的人或物,因为仪器,技术系统和网络密度的能力发达国家正在接近那些,观察数据过时的人或物的大数量积累。怎么把这些资源用于经济建设和公共安全成为了值得学习的一个重要问题。以便改进地震预言和地震紧急情况反应,它在这篇论文被建议那个提取珍贵先锋信息,改善地震rapid报导能力和报导的延长快速的紧张工作是关键问题。集成网络资源,造统一了地震监视网络是的标准和多功能建立一个公共安全服务平台和地震观察资源愿望的前提显著地作出贡献到工程,海洋,气象学,和环境保护的领域。因此,地震网络的开发的未来方向正在探索监视资源,提高独立革新,构造一个技术平台并且扩大服务领域。

  • 标签: 地震监测 公共安全 资源共享 监测网络
  • 简介:大Wenchuan()地震导致了山崩的大数量。他们广泛地被散布并且引起巨大的损坏。这些导致地震的山崩的滑动机制和特征与常规严肃山崩的那些不同。他们的出现被强大的地震显然控制,并且他们被高势能滑动并且喷射滑动描绘。在这篇文章,导致地震的山崩被分类,滑动和这些山崩的破坏的特征被描述,并且在地震之间的关系和山崩被分析。Donghekou()山崩被用作一个例子描绘移动迅速的长途的导致地震的喷射滑动和山崩。这研究建议与导致地震的山崩有关的许多现象和问题在当前的识别和知识以外,并且新方法论应该被采用在山崩的发展把地震的效果看作首要的因素。而且,移动迅速的长途的导致地震的山崩的学习能也使旧、古老的山崩的形成清楚些。

  • 标签: 诱发滑坡 大地震 汶川 滑动机制 山体滑坡 特征描述
  • 简介:Monitoringandstudyofdynamiccharacteristicsofgroundwateraresignificantmethodsofearthquakemonitoringandforecasting.Forresearchongroundwaterdynamics,groundwaterdatingcanqualitativelyandquantitativelyprovidescientificanalysisonthecharacteristicsofgroundwaterrechargeandrunoffaswellasrenewalcapacity.Thisarticleillustratesthemethodsusedgloballyandsummarizesthemainadvancesandachievementsingroundwaterdating.Italsofocusesontherelationshipsbetweengroundwaterrenewalcapacityandseismicmonitoring,groundwatermovementandseismicactivity,shallowgroundwaterrechargeandabnormalinterferenceelimination.Thestudiesshowthatgroundwaterdatingplaysanimportantroleinwater-rockinteraction,andgeologicaltectonicandseismicactivityevaluation.Therefore,groundwaterdatingcanbewidelyusedtomonitorandanalyzetheprecursorinformationinseismicundergroundfluidobservationsinthenearfuture.

  • 标签: 地震监测预报 地下水动态 测年 地下水补给 应用 水岩相互作用
  • 简介:这份报纸早为地震评估不同特征警告。在大小,震中距离和计算参数之间的可伸缩的关系从USGS从地震事件数据被导出。标准STA/LTA方法被增加二个新参数在P波浪的发作前消除尖铁类型噪音和小pulsetype噪音的效果修改。在P波浪的察觉以后,算法从P波浪的开始的3秒提取12种参数。这些参数的然后逐步的回归分析被执行估计震央的距离和大小。六个不同参数被选择估计震央的距离,和为所有419估计的中部的错误是16.5km。四个参数最佳地被联合估计大小,并且为所有事件的吝啬的错误是0.0个大小单位,与0.5的标准差。基于评价结果,最后,另外的工作被建议改进结果的精确性。

  • 标签: 地震预警 信号特征 评价 逐步回归分析 地震事件 平均误差
  • 简介:Onthephysicalmodelofearthquakeprecursorfieldsandthemechanismofprecursors'timespacedistribution──originandevidencesof thestron...

  • 标签: inclusion theory PATTERN strong-body PATTERN stress
  • 简介:  IllustrationAllthedatainthiscatalogarechosenfromthe"PreliminarySeismologicalReportofChineseSeismicStations"(Itsabbreviationis"MonthlyReport").ThecatalogincludestheeventsofM≥4.7inandnearChinaandM≥6allovertheworld.The"MonthlyReport"ismonthlycompiledbvtheNinthSectionofInstituteofGeophysics,CSB.……

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  • 简介:  Illustration  Allthedatainthiscatalogarechosenfromthe"PreliminarySeismologicalReportofChineseSeismicStations"(Itsabbreviationis"MonthlyReport").……

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  • 简介:TheregionaltectonicbackgroundandcharacteristicsofactivefaultsoftheYutianMS7.3earthquakeonFebruary12,2014arediscussedinthispaper.AftertheanalysisoftheepicenterareaoftheMS7.3earthquakein2014andthefocalmechanismsoftheformerstrongearthquakesaroundit,theauthorsdeducedthattheseismogenicfaultoftheMS7.3earthquakeistheeastbranchoftheAshikulefault.TheMS7.3earthquakein2014andtheMS7.3earthquakein2008aretwostrongearthquakeeventsonthedifferentsectionsoftheAltunTaghfault,wherethefaultbehaviorchangesfromsinistralsliptonormalfaultingbecauseoftheextensionaltaileffectsinthesouthernendoftheAltunTaghfault.ItisconcludedthatthetwoMS7.3earthquakeshavethesamedynamicsource,andtheMS7.3earthquakein2008promotedtheoccurrenceoftheMS7.3earthquakein2014.Finally,wecalculatetheCoulombstresschangetotheseismogenicfaultoftheMS7.3earthquakein2014fromtheMS7.3earthquakein2008usingthelayeredcrustmodel.TheresultalsoshowsthattheMS7.3earthquakein2008acceleratedtheoccurrenceoftheMS7.3earthquakein2014.

  • 标签: 区域构造背景 地震对 阿尔金断裂带 活动断层 发震断层 震源机制
  • 简介:自从其22相对独立于另外的中等强壮的地震的1980,有女士5.0的26地震在Qinghai-Xizang(西藏)块的东北边缘被记录了。关于在22中等强壮的地震前的小地震活动的增加的研究显示了那项小地震活动在17中等强壮的地震前被提高。尽管增加的seismicity是在Qinghai-Xizang(西藏)块的东北边缘的普通现象,我们在由这现象预言中等强壮的地震有困难。以便通过小地震的增加的seismicity预言中等强壮的地震,这篇论文试图建议一个新方法,它通过小地震的分发模式的变化计算小地震频率基于在东北Qinghai-Xizang(西藏)块的小地震活动的特征,然后做主要应用。结果证明我们能通过新方法在中等强烈地震前在小地震的频率获得明显的异例,与这个小地震频率异例的振幅上的小空间范围效果。我们能获得对为在Qinghai-Xizang(西藏)块的东北边缘的中等强壮的地震的短期的异例索引中间。

  • 标签: 地震活动异常 东北缘 西藏 青海 中强地震 地震活动增强
  • 简介:AnevidenceforearthquakeocurencetimerelatedwithgeologicstructureRelationsbetwenlocalmeanlunartimesofearthquakeocurenceandthei...

  • 标签: FAULT trend Earth TIDE EARTHQUAKE TRIGGERING
  • 简介:Thispaperreviewedthemaintarget,functions,tool(OpenQuakesoftware)andresearchachievementsoftheGlobalEarthquakeModel(GEM)Foundation,andmadeasimpleprospectonthedevelopmentandapplicationofprojectsofGEMinthefuture.LearningfromGEMandOpenQuakeishelpfultoimprovetheseismichazardmodelofChinaandenhancethescientificityoftheseismichazardassessmentformetropolitansandmajorengineeringfacilitiesnearmajorseismogenicstructures.

  • 标签: 地震模型 工程设施 展望 GEM 地震危险性评价 创业板
  • 简介:1,209earthquakesoccurredinXianyou,FujianfromAugust4,2010toOctober4,2013.ThelargestearthquakewasML5.0onSeptember4,2013.InordertostudytheXianyouearthquakesequenceandunderstandthecausativestructureandstressfieldofXianyou,thefocalmechanismsolutionsofsixearthquakes(ML>3.5)intheXianyouearthquakesequencearecalculatedusingthebroadbanddigitaldataoftheFujianSeismicNetworkwiththeseismicmomenttensorinversemethod.Theresultsshowthatthefocalfaultsofthesixearthquakesaresimilar,whichareallstrike-slipfaultsstrikingtothenorthwestwithhighdipangles.ThedirectionoftheprincipalcompressivestressaxesisnearSN,whichisdifferentfromthestressfieldofFujianregion.TheXianyouearthquakesequencemayhavebeeninducedbythestressadjustmentaftertheimpoundmentofJinzhongreservoir.

  • 标签: 地震序列 震源机制解 福建地区 仙游 中国 地震矩张量