我看到有些科普读物介绍有些地震有前震.请问前震和主震的区别是什么,如何确认.这次汶川大地震有没有可能是前震.

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/30 13:46:30
xZYs#Gr+D[ ѱj~Cʻ%oA7  pp뿬eepGLpՙYy~՟~jJć̊.r,DZeЭp-\-8I[%.c6E^^ eZ qwdF7ζ,_7h*f5l{4C(NxW5O)N٧~ϟ?_|~7o~ |/_GW7}o[tc5>32vʜ.[ ;{y*2Mk]#ˌ^*{s,-,{f]Ȟԟy:7,L/]BY?Co-{R`Vgre)?C2"Ez|XV_;潨vyFDBϱit:h!&L:LHo,.Mx:cv{)ZI "囙$o"G 9Mٵ&?poY J5b $vƉ5 O$N[p-557a%1k'it<8c{U*VA1vWAz ;i3LOpMkZh[Cc! ϋJ{ù`=~噓_{?&лT`&VImg;/%di/x7bG7 {UFvZf`ZD#ncmrYGKV $ZWb~(l+TFnț{2P^FZAKo)TCWO@o >9ӈa}=fǧ؊\HLa! &ƒ#(#X z;n,g n,)l,U UP>CL? 3bp2.8RýxЋB'ig,A~ -U|dq"P "D/ bK?=H&!{QO<g/Dlb3;[Z\˫2,~ELDn|!7;p9Hso)}FH[zWּ'b&ғ\ tH"c՝zSLmL䳓hY`=CnԺ3V JH|\4X%[ {.l<r\7Q4}˓~N,y9s"9ڣshI{-yf02" KXr|C%D>$D`["Yӎzs /JC.`eC=^_zЕwkAIB/Acg[ /C~7lu C6-?;`p\$BXǗ/,/*$lSh-vTg5nI.c8c]}Dd0IEXA\X벯 cۯtz1s"^?#y2aM]1^>;kሄl/ Gi\KN;g\y[':0|?GP|]{SlGiBU=(E{h gDb;=yavcb9j.9v+Y3UU[kw8?*3MR9}뎺rYVzPTNX_: 0 No? DIP/d1Dۉ'O0bj;>/SwL/ j_O`#\0 (.P\Or6N:=?WU1?*^Ϻ3c TpuL ᯄZwW^o:+=z&;pi k$:y zFOf`MQ^pDB(r{ֆ2ynJA#Oh`k0^EGkNNM. jv@YC3m4QOfP\*EbC>ռяc ̵ۣX ** :VɾxCt10pr={V󶉻||bBLS"g&Dky 1>ƣ>eff?C\!qϧw z$8MOqֽ?),buRD#)W''4 ?5?eX^7C#J(F^K(TN3bid"HKf%ZK%u1hsʍɫ*YQ %?XvPqyV(GYsc:0ԨL|mm,E! BBˬٰ1ýp6̂nQH8 f)zWl-Gd* 5yY['=nhN:4dOyÉ"@Z",h-Ւ\ .EB h*FaQڸRYC-Y˜ ̳ěP|1I<4}iڽCH !!p\^/ ~ܡ> )\$oKddnd|{z_iHJNfv_*Gw46nXJـ %B-- !|hN>j-͙,D6(gО:ȃɆA:> jpq*{իdUujSV"H۝iSY|@dLD3 zN SC`_u,[rPcZg-B<":Y#q Qeq+̪ƛ= 8#Sh-^sauZp&913@p=tj:93Hv p;9pTzե [z؂ۓir-Q!"q,Q Vi41X3KPrHhT~NbU[Ŷ ;hAtfVIlf(`BQ.խm`~ؐ0s2l89 2 ߐw{M@3ґ#3x>R#ǗJ 2{YUhen::wڷh΍G5Nr$k[5nT%+QޏZUaKm:RB/[72<6tgd9JKb8 ^' ڵ i>Xp]rROEѻ[ oDfL#UYلOT)zL)kEp'C\&ҳ*A[̝гhvEc@[j3NK"3{jPgrܑ9d!n$v]?aPct<>+{RJqէ<%Brݘi1Xf^δa'TIk!CfN~}@$DlAf[JĖ(Z o.nD[*ez CHjp`L=$i^"iQ C{q.gcQ!`ʐEtLBɒgHtJ0sjbM^aM\9<-t|H^`_!ALa/=?}aqt@1; d3T1(}\F< owM8|DPM#y+ХE.u/*AJNrob\81Zz*k?b}4@fiJ(D ^! qlun+\K?2{i~mtbt&*@A& $5c2ױݥ>+ t B]IcgMߊQ m,6FQ? P*d:gKVAD3 @*f1iTf-Fά l l_C\≐wvi훬T٧or6"IѡBbELTN ֹ[4ffycjs2% vQz%Ah| ˾HGy]tFumӜPE)绠x4OprP,(!=YAFEE3fܳ.Z4l6ppHEы 6؋90{9!iЛ&r0!5@p!{ 'e$;b~Rã\ҷ-!Dt3M:S Z!dMbR5* ^ ?)Q~U1})\& a1 R7jMF wr](ף E:c#dMҌH6!Ih{ӴV'`;{~lܑ ;oy.@Cח>Ͽ>H