Portal de Periódicos da CAPES

the Seismieity of Iran the Farsinaj (Kermanshah) earthquake of 13 Decemher 1957

2011; National Institute of Geophysics and Volcanology; Volume: 26; Issue: 4 Linguagem: Inglês

10.4401/ag-5030

2037-416X

N. N. Ambraseys, Ali Moinfar, P. PERONACI,

Marine and environmental studies

l'he Seismieity of Iran Tlle Farsinaj (Kermanshah) earllHluake of 13 Decemher 1957 H('I'pi"",1 "II (j,•toh,•1' ]!)(h.I!I'i3 Th(' Fal'~iJlUj (Iran) (';ll'tll'llIUI,(' ''''l'(U']'I',I OlI Ih,' I:llh ])('('('ml) ('1' Hl,i'i.,\ H"ld in"(';;1ig:,dion ('ani(',1 oul Iti .Y(•'H." lah'l' ~Iwws Ihal lhi~ l•al'lhIPlak(, 1',111-,,(•,1 IH'a"y ,Iamag(' within aH an"1 "f :1,iWO .~qlUH(•kilom('(n's iII Wlli,.]l1,IIH l><'''pl (' W('n' kill(',l an,l BO{l inj111'(•'].'l'Ili' ('udh'luak(', whil'll ha,l;l Illaguitudeor 'i.I, \l'aH follo\I'I',1 h,v lt<allY "tl'OHg af((•r ... ho('kK II'loil'll progl'('H"iug gra,llwlly 011twal',1 fl'Oll< th,' "pi""ull'al an'a, ('u],Hgt'd tlH' lll,'iz", Kl'Ì~llIal r('gioH iH a nOl'lhwl'~t-S«11tll('a~1 din•diOll . .'lm'l'o~l'i~l1<ÌI• ('\"Ì,I('Jl('(' sl1gg('~I)< a )<O!ll ('\\'hnt !ll"n' mOlleral(' ('pi('('lItl'al inlp11Kil,v or \'11 (.ìl~l) 0\' ('1' a Illu('h widl'l' Hl'I'a than <èoll ll<a,l!llil11,le ('al'lh'luab'H ha\'(' ~hOW11 i11 "tlll'l' pal'L~ of Il'an.Th,• "h,,,•I, \l'as fIolt 0\'('1' :1Jl ,H('a of ISO,OOO S'(11 'I.nl'(">l1lly 1"('•I'<I'al<•,1 rod of (h(' 1ll:lÌll Hho('k ,md or ~Ollll' of il.", aftl'l'.~h",•kKli(' ol1tsi,k IJl(' ll<l'iz"sl'ÌslIIal l'('gi"l1.Thl'rc is -"011<1' ill1'on ('hl"h,(, ('vid('!l{'(' thut IJl(' llulÌu SlllH'l, or 1ll0~t pl'ohahly SOIll(' or it~ lal'g('1' a((('r)<h'H'k~ W('n' a".~"l'iatl•d wi(h gl'Ol1lld ,ll'forlll T:l\' i dauui iH 11H'an'a ,Ii 2g{l klll~, l'on III!! lllorti ,.HO{l fIorit.i,Il 11'1'1'Bll<O(O ,li ll<agllH.u,lo'i.I, fn "<è)..(nito da lll"lte e rodi repli"]l(' "llI', al-1'<1ltanan,I"si gl'a,latil11lcntl' ,Iall'ar"a el,k(•Ilt.l'alt•,Ilanno allargalo ],1 ~0l1,1 m('iw8i~JlIÌ('a iu dir{'ziou(l X'Y-SE.l,lati lll'\<'l'O.'isllli,•iportallo :1 s~ahl ,la fI'ITl'1110ti ,li pari lllagnitudo.,n'\,('nuti iu altn• parti d,•ll'lraH.La s,'o~s:t i~ slal,a ""ll1it;t in nll'arpa ,li ISO.OOO km~, H011I'a!.• !.ntto in dil"('7.ill1wN E ,Iella ZOllU epil'elllnd(•.La ri,1i-"l'o~iziolle ,h'i rno,.]tidella ""O"Ha l'l'inl'ÌpaIt-c oli :d('lUle J'el'liell(' f,llta r(•(•(•nlt•llll•llt(', porla '[ll(•~ti " ("') Illll'('l'ial ('oll(•I!:I• or :-\"i('I](,(', Lowlon (*"') Plau awl Bu,I,!!:1'1 Ol'g:llli~atioll.'1'I'hr:lll (***) {;l'oph~',,il'al In,,1itnl~>, Hrlllll' nso al di hlO!'i til'lla !'egiOlll' llleizo~i~lllka_ Gli Autori ('ollchu10110 <'1te ("è qualtho proyn, HIl<'llD HO 1l01l ad tutto (1oj('rmillmtle, ('he la .~('o~~aIJl'ilU'ilJaln o lllOItO Ili!l prllhnhilnH'ut!• {jUalnllla {Ielle rppli('he piìl f"rti, ~iallo stnio a~ s"l'iate n deformn;"iolli (h•l t('r["('IIO ai "ri!-(iIlC tcttolli('a_ I.:'-i'l'HonllC'l'TO.:'-i 'l'hl' 'l::agl"Of\, perhapf\ one of the mOf\t.illt.el•I'f;1illgan'as of adive t.e('/onil•f\ in Iran, Iws reeently been the subjed. of iutellf;(~ f>tll!ly.::'Ilm'h eiTort has be('n pllt.a11(l prog-r{'ss ma(le into tlH' reloeation of hY11O('(mtl"es, the intel"}Jretatioll or 8011\"('(, meehanisllls alHl in the ma1lpillg aIHI IllHlerst.all!lillg" of regiollal tectol1ies.In C"ont.mst,veTy lit.t.lp prOgJ"1'8S has heel1 nllHle with the mac-l"O-sei8lni(' illvef;t.igat.iol1 of l'~u-thqllakef; origillaj,il1g ill 1his lJal"t of Inlll, bmwath whieh t.he veloC'ity f>tl"U('/me of the l•rust.if> HO liUle kl10Wll.Out of about twenty hll".f.(e earthquakes that.wc know havl~ oC'eurred dming the pl"Csent.('enttll'~-in the Zagl"Os, onl." two have be('n stmlie(1 in some !letai! ill the tieW all(1 live have heel1 sllmmarily J"e}Jorte!lil1 the lit.eTat.m•p.'1'1111f>, il1 f;pit.e of t.lw l~lT01-tf; made so far ill tlm illSt.]"](-nH'lltalalld g{'ologieal si udy of ~wtive t.ed.ollieH il1 this part of Iran, tlmre are still inwjfieient.1ie](1 obHC\"vat.iomt.hat.('ou](1 eHeetively help one 1.0 re~olve ambigui ti es or 801IH'e mechanl~ms allli to cOllt.l"ol the I"e!oeation or epieent.l"es.'l'his pa}Jer is t.he Hrst. of a• f;l~rief; il1telldpd 1.0 form a re{'ord, aH Vr{'l•ise as pOf\~ibh~, or the nlaero~eismi{' ~t!((ly or the most.sig-Ililic-ant.earthquakes in t.he lI,ag-ros.It.Is w1"Ìt.t.en with the aim of rl~110l•til1g f>oll'ly fielll oh~el•vat.iollsalld faets l'datillg to part.iC'uhn eart-hquakeH t.haL are imvort.alltto t.lw Hnderstallliing of the lI,ilg-ros t.eC"t.onies.At, t,his ~tag-e no attempt '\'ill he m~Hle to illt.el'}JI'ef, faetf; 01' dm\\" ('Oll('[llsions from lield oUfwl'Yat.iolls,'l'1m earthqllake Htu!lie!l in t,hiH papel", tlte Pal"sinaj Eart,hqllake, oeellne(1 late in DeeembC\" .l!J;j7, Ea1'ly ill JH.llUHTY .l!)58 OlW or t.lte alltho1'8 llHd tlle OV1)(lrt.lll1it.y1.0 vif;it.Uw nmizoseiHlllal area alH(1)\'epare a nll111ber or rep01ts (li.l,8,0).Ot.her sumlmny reports, Imsed Illai1l1y on newspapel' illfol'IWttioll, \\'Ne pnhlif>hed hy )!Ollt.adoll (.') and Hot,h(i ('O), Alf>o, a ,JavalHwl )!if;f\ioll whieh visi1ml the Houtltcast, part or tltc meizo~ei8mal reg-ion in .l!J;j8, pllblishe(1 a brief l'eport., whil'h, apal't.from H•ll iIH'OIll]llet.l~illt.mlf\itydif\t.l'ilmtiollmap, eontains vel'}' litUe originai infol'lllat.ion(2), '''''H '''''-' ''''';)) lq':: fhll ,,( t he " , .1 / I tB ~h( " " 1( l('a lit i('~ uut.,,!rtJ~tc, or 1" >I':oI.l'HI llIn !l ,,1,,'\"Ill!.( 1 l ' [tch]w"ks.~II I.I I Il "0,,,,•,,1 h.v tI,c 'II,Hl!ij lIlw k !l11\\ '.) l ~,' , l ' t I AJtitu,[c ill !ll cl l'CS, ~ ~ CH r lhl j uak\J lIllm !.H Il \l I .I."f;!"'• ,l uI" in,!iral (' <Il, H l<} 1;11,.. or t h c , , .' '---• 'f il i'; L\I(:;;'i'O,U (Kl:IDrANSII.UI) .E.\I~TIIQU_\KE or l;{ ['IX'J.