YearonJuly28,1976,Beijingtime3:4253.8secondsafter23seconds,thattimefortheChinesepeople,itisdefinitelydifficulttoShihuaiof23seconds;andpersonalexperiencethatfor23secondsandsurvivedtheTangshan,The23secondsismoredeeplybrandedintotheirmemoriescannotfadetheunspeakablepainandterror-1976,July28,3:00,42minutes,53.8seconds,Tangshanearthquake!23seconds,islocatedinNorthChina'sTangshanoccurredasthemagnitude7.8Richterearthquake;23seconds,morethan242,000deadand164,000seriouslyinjuredpeople;23seconds,morethan7200earthquakekilledhisfamilyhome,Tensofthousandsoffamilydisintegration,4204tobecomeorphans;23seconds,97%ofthegroundconstruction,55%ofthedestructionofproductionfacilities;23seconds,transport,watersupply,powersupply,disruptedallcommunications;23seconds,thedirecteconomicloss3,000,000,000yuan;23seconds,amillionpeoplehavetheindustrialcitywasrazedtotheground......Exactly30yearshavepassed,comparedto30,23secondsappearstobehowinsignificant,butthenashortperiodof23seconds,sothat30yearslater,whenpeoplelookbackonthepastverymuchsaddenedthatthesituationisdifficultKan.July28,2006isthe30thanniversaryoftheTangshanearthquakeinthedaystocome,inthisspecialday,thePeople'sNetworkchannelssortedoutsomeofthepictures30yearsagotoreflectthatgreatpicturesofthedisaster,alongwiththereaderscherishthememoryoftheearthquakewerekilledVictimswho,togetherwithanunprecedentedrecallthatthestruggletoearthquakerelief.

　　AnearthquakeisashakingofthegroundcausedbythesuddenbreakingandshiftingoflargesectionsofEarth'srockyoutershell.Earthquakesareamongthemostpowerfuleventsonearth,andtheirresultscanbeterrifying.Asevereearthquakemayreleaseenergy10,000timesasgreatasthatofthefirstatomicbomb.Rockmovementsduringanearthquakecanmakeriverschangetheircourse.Earthquakescantriggerlandslidesthatcausegreatdamageandlossoflife.Largeearthquakesbeneaththeoceancancreateaseriesofhuge,destructivewavescalledtsunamis(pronouncedtsooNAHmeez)thatfloodcoastsformanymiles.

　　Earthquakesalmostneverkillpeopledirectly.Instead,manydeathsandinjuriesinearthquakesresultfromfallingobjectsandthecollapseofbuildings,bridges,andotherstructures.Fireresultingfrombrokengasorpowerlinesisanothermajordangerduringaquake.Spillsofhazardouschemicalsarealsoaconcernduringanearthquake.

　　Beachplace:Solongasunderthecliffcannotthesuitablesecurity,butbecausethetsunamifollowstheearthquakebuttocomefrequently,thereforeaftervibratesstopsleavingthebeachassoonaspossibletothehigheropenfieldshift.Theaftershockriskdidnotlikethetsunamitobesofearful

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