简介：系统分析了KJ—1记录器对拾震器输出电压灵敏度的要求，并对SK拾震器与KJ—1记录器的连接方法进行了研究。研究结果表明，只需对SK拾震器和KJ—1记录器进行改造，就能实现两者的完美配接，而其性能优于DK—1地震仪和基式地震仪。

简介：InordertoexploretheabnormalvariationsbeforeandaftertheWen'anM5.1earthquakeonJuly4,2006,thegravitydataobservedbytheWenbaGravityObservationNetworkbeforeandaftertheearthquakewasanalyzed.Therelationshipsbetweengravitychangeandverticaldisplacementandshallowgroundwaterlevelwerediscussed,andelevationcorrectionofthegravitywaspreliminarilyperformed.TheresultsshowthattherewereabnormalgravitychangesbeforetheM5.1earthquake,whichappearedasgravityrisinginthewholeobservationnetwork,especiallyinthesouthpart.AhighgradientofgravityvariationappearedaroundtheepicenterbeforetheM5.1earthquake,especiallyduringtheshortperiodbetweenOctober2005toApril2006.TheboundaryofthepositiveandnegativegravityvariationsgraduallydeflectedandbegantorecoverfromOctober2007.

简介：2011年1月19日安徽省安庆市MS4.8级地震发生后,笔者在第一时间深入地震灾区,开展了地震烈度调查和地震灾害评估工作。本文基于现场调查结果,对此次地震的构造背景、烈度分布及房屋典型震害进行了分析,并对经验教训进行了初步总结。

简介：本文介绍了地震行业地面骨干网与应急卫星通信网的运行现状及互联存在的路由问题，讨论了实现两网互联的路由设计目标和策略，根据OSPF协议与BGP协议的特点和适用范围，提出了统一互联的接入方法，以及联合使用OSPF和BGP协议解决两网互联路由问题的具体方案，经网络仿真平台测试证明，该方案切实可行，效果良好。

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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简介：Basedondatacollectedfromatemporalseismicnetwork,andinadditiontothedatafromsomenearbypermanentstations,weinvestigatethevelocitystructureandseismicityintheRongchanggasfield,wheresignificantinjection-inducedseismicityhasbeenidentified.First,weusereceiverfunctionsfromdistantearthquakestoinvertdetailed1-Dvelocitystructuresbeneathtypicalstations.Then,weusethedouble-differencehypocenterlocationmethodtore-locateearthquakesofthe2010ML5.1earthquakesequencethatoccurredintheregion.There-locatedhypocentersshowthatthe2010ML5.1earthquakesequencewasdistributedinasmallareasurroundingmajorinjectionwellsandclusteredmostlyalongpre-existingfaults.Majorearthquakesshowafocaldepthlessthan5kmwithadominantdepthof～2km,adepthofmajorreservoirsandinjectionwells.Wethusconcludethatthe2010ML5.1earthquakesequencemighthavebeeninducedbythedeepwellinjectionofunwantedwateratadepth～3kmintheRongchanggasfield.

简介：Basedonthefittingonpaleoearthquakedataofintra-plateregionsinthenorthernpartofChi-naandgivingastatisticalmodeloftimeinterdependence,thepotentialdamageearthquakesinadefinitefutureperiodandcharacteristicsofpresentshocksalongtheLingwufaulthavebeenanalyzedbyusingdangerousprobabilityfunctionandsomenewdataconcerned.Wehavein-ferredthatthefaulthasenteredaperiodthatearthquakeswillprobablyoccur.ThereexistsapotentialdangerthatastrongearthquakewithMs7.0-7.5willoccurin10-100a.

简介：统计分析九江1井2008--2011年水位、水温在多次大震中的同震响应特征，结果显示：水位通常表现为在正常背景下振荡，水温则通常表现为突降后恢复正常，水位和水温对远场大震的同震响应存在着一致性。同时，九江1井水位对地震的同震响应灵敏性优于同井水温观测，但水位观测受降雨影响．且气压效应明显。

简介：论述1∶1000数字化地形测量产品作业方法与主要技术。

简介：将兰州台的VSQ与CZB-1仪的观测资料质量、变化趋势、潮汐响应函数及映震能力进行了对比分析，认为：VSQ的观测资料的质量比CZB-1要好，因CZB-1的资料存在漂移现象；在潮汐因子和相位滞后方面，VSQ比CZB-1反应灵敏；但CZB-1的映震能力比VSQ强。

简介：正Thethesisofthepaper,whichistheobjectofthisDiscussion,isthattheconsiderabledamagesufferedbytheBasilica,aftertheearthquakeofL'Aquilain2009,wastheexclusiveresultoftheinterventionofseismicimprovementofthenaves,madein2000;such