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有关地震方面的英语作文（急求）

发表时间：2024-07-16 21:56:01 来源：网友投稿

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

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

Theforceofanearthquakedependsonhowmuchrockbreaksandhowfaritshifts.Powerfulearthquakescanshakefirmgroundviolentlyforgreatdistances.Duringminorearthquakes,thevibrationmaybenogreaterthanthevibrationcausedbyapassingtruck.

Onaverage,apowerfulearthquakeoccurslessthanonceeverytwoyears.Atleast40moderateearthquakescausedamagesomewhereintheworldeachyear.About40,000to50,000smallearthquakes--largeenoughtobefeltbutnotdamaging--occurannually.

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