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INTRODUCTI ON 146 CATALOG OF EARTHQUAKES FOR VENEZUELA HYPOCENTER ANI) INENSITY DATA NATIONAL REPORT Dr. Jos6 Grases G. The preparation of the catalog for Venezuela began with a careful revision of listings, bibliogrophicaJ references and documental sources where reliable data could be found. With relation to the hypocentral catalogs and lists with events recorded by instruments, the information appears in the General Report. Concerning tihe seismic movements which throughout historical times have caused some type of damage in localities of Venezuela, there exists abundant literature, although dispersed, which comes from the testimony of witnesses who were present, as well as rrcm news published by third persons, official reports, seismological bulletins, local and foreign press news, etc. Of these documents, the work of Centeno Crau (1969) is specially important, since it contains a very complete compilation of information concerning destructive earthquakes, felt earthquakes and secondary effects, which have occurred in VenezuelL from 1530 through 1949. Incl linglthe area covered by the sea, which represents between a third and a fourth part of the total, the area which is seismically active andwhich has been studied is somewhat larger than one million square kilometers. In much of this area, the politica] history during colonial times, since the descovery of Venezuela, was infnenced by Spain, England, France and, to a lesser degree, lolland, a fact which has complicated the compilation of the data. In the areas adjacent to the western frontier of the country, the catalog of Colombian earthquakes of Father Ramirez, S.J. (second edition 1975) was of part itcilar help. Also, the catalog of Robson (1964), concerning seismic activity in the eastern Caribe, was of special help for the study of seismic events which are located in the eastern part of the country. The preparation of the catalog wes the responsibility of J. Grases. The criteria for se! ction were discussed with L. Ocola and V. Winkler. The lists of hypocenters was the work of o. P~rez and the revision and the checking of the final verrs ier was done by M. Lugo. The initiative and the recognition of the importance of this catalog must be credited to G. Fiedler, who pioneered inMst. runental sei smology in Venezuela. MATER IALS IS E) 1. DocrmentalJ Sources If any criticism can be made to the work of Centeno Grau, it is that there is a lack of precise references for the sources of information included
47 in thu conmpiliation presunted as a cat,jlo; prohably, Centeno used other .ocai catalog s -or .q-: IslIrrp (i8?2), Pr'nij (1935), Soto (1931), lebru, Corde ro (1IM9), ,.., ld Lh histories u(l dentstruct Lve earthqua;ikes;, which occurred in 'un zir .u! , ,..t' tu he Ahrnshtrir h (1901), Ernts (87U , 1887. 1889) Fr:injui:, .; imene. ( I ')) , [halrra (1862), RN n: (187'), Siver (im y0) , and okher, And L '. l:"ripLion of witness'es ibirnri ,s, and thie prersonal testi - Ax ' 't ClnIi i ' t' !'cIpI;ri Sn , of tII ic's ,1 ! ot _urs I stour : c . ii 'orma Ltioi , such A ; a, ,: i li i J,! a.b:road, i: :-;o 'thing whi chi s t:ill to be do ind ' 1!hich may have p ,rni:c IS r..uc i;. It is kiosw'n t:iLt dist i.nguishd per;o;n r''n tTneziea tt Lof th X iXtih r'riLii '..U'c C' .;rru iproiincli.tiL fo t'luol)eu 1 an re mc (w,, r i were :;t ,p;ro'st in ;cis:olo:,iul! problemi:s. Such flow of inorulat ion pmiry' us to un r: L,aid h ti ii!cl !al va concer lue ing V.c'zeir Ilan oveint in ca'tio t such :i!3 I n aili tf- I"r ic' (luh l ihed in leigium between 184i aid 1872): HaL L (1852)
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Centro Regional de Sismologfa para
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Este trabajo se publica con el ente
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INDICE - CONTENTS DESCRIPCION DEL C
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Pals Coordinador Investigadores 2 R
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'4 Todas Ias intensidades 1istndas
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individuales. Esto requiriA definir
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8 mb = log (A/T) + 1.35 log (A ) +
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10 Modificada o MSK. El investigado
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Conclusiones 12 Los catilogos unifi
Page 19 and 20:
Introducci6n 15 CATALOGO DE TERREMO
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17 Los criterios de selecci6n de ev
Page 23 and 24:
4. Torremoto Stdin .i Cl ino del 3)
Page 25 and 26:
INTRODUCCION CATALOG(O DE TE KREMOT
Page 27 and 28:
23 A 0 ML = lig A/T + 1.9 log + 3.5
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25 A partir de 1982 los datas sismi
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27 m) = 1.63 + 0.60 Jog (At), 6 i b
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29 SADOWSKI, G.R.; CSORDAS, S.M. &
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A Ia colmna 131 (WFn6munus s -t , n
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3 KAUSEI,, E. (1979d). Terremoto do
Page 39 and 40:
INTRODUCCION .'5 CATAIO(;O DE .1ElI
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37 se pretendla adem~s elaborar lis
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eA. arclivo del InS.-LAtti) (eolisi
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ESt'ASA-CAI.I'.- ,i, r'pvdia Uni v.
Page 47 and 48:
INTRODUCCION I. Investigadores clab
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7. Io t ermi i (i ojliiao s i dad !
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INTRODUCC1ON 47 CA'ALOOI ) I)t.E TF
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4Q) ciertos recientes evento:s gi a
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INTRODUCCION CATALOGO DiE TEi,;RNI,
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la interpretaci6n de descripciones
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fuente du a"lorl;a B; (tp ignaJ~l m
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)'''n4'Va,!o "IN't; MK3, n importtn
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59 I so ejemplifican algunos tomado
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a"lt or i6 at Ias' primrdB JleM ros
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DESCRIPCION DIE ENT RADA.; IV,N , C
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APFICE1 f A (CihnL inaari 'Si) (>I
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APENDICE A (Continuacj6n) Columna r
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APENDICE B (Continu cin) Co ,,_ i t
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Tipa do Hlypocent:ro V.digo SISRA T
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' ipo de Cd igo Ilypocentro STSRA n
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71, EGR Egred, J., 1M8, Breve hiq;t
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77 Colombia y en la Cuenca d la Ama
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'FAiLA 5 - tCHDI T ,IA W FUENK:TES
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TAG Uniiye rsia IN(( N;wci on.i (.'
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83 TABLA 7 - INTtERPRETES APO Oscar
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711 No not nd. ,.a(~ i n V-npz;o Ia
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x / TABA F.- K Fi! N(:IAS 101 Infor
Page 93 and 94:
31i3 lescotes, P.M., and Cahr,', Gc
Page 95 and 96:
422 Polo, J.T., 1904, Sinopsis do t
Page 97 and 98:
P.114411 > .iII, 11.Ci'144 1 P . ,
Page 99 and 100: 9 5 REFI EN(CI AS CITADAS Bath, M.,
Page 101 and 102: Introducti on 97 SOUTH AMERICAN HYP
Page 103 and 104: 99' Country Coordinator Investigato
Page 105 and 106: 101 is provided for four, magnitude
Page 107 and 108: S03 These bulletins, for the time s
Page 109 and 110: locally which actually fell in Colc
Page 111 and 112: Brazil: Magn!tudes (mb) were comput
Page 113 and 114: intensities but also the distributi
Page 115 and 116: assigned the iJntonnsity value is a
Page 117 and 118: Shallow: 0-70 kms. S11 Intermediate
Page 119 and 120: 115 compiled, is to more clearly de
Page 121 and 122: INTRODUCTION 117 CATALOG OF EARTHQU
Page 123 and 124: I 9 The criteria for tbe selection
Page 125 and 126: 121 Mendoza: Vil].a Atucl and las t
Page 127 and 128: INTRODUCTION 123 CATALOG OF EARTHQU
Page 129 and 130: 125 M = 1.08 + 0.62 fmx 2. Intensit
Page 131 and 132: 127 and Sternberg (1953) who compil
Page 133 and 134: 129 mb = 1.63 + 0.60 log(A t), or m
Page 135 and 136: INTRODUCT I ON 131 CATALOC OF EARTI
Page 137 and 138: INTRODUCTION 133 CATALOG OF EARTHQL
Page 139 and 140: 1.35 later investigation and for th
Page 141 and 142: t lh, l .'a lua11t-io ,Fi i- t ii.
Page 143 and 144: 1NTRODUCT ION 1. Participating: 139
Page 145 and 146: 7. l)eterminat ion of inten, it rie
Page 147 and 148: ]1 3 sources that appear i the refe
Page 149: informna tion. For pl;.ce: who.o i
Page 153 and 154: ii) Every evnl or : Bra:zeo, and fo
Page 155 and 156: is adopted. where: 151 From the equ
Page 157 and 158: 153 TAB IF N ° INTENSITY OBSERVATI
Page 159 and 160: V n u la (1971; 107'); The 'imes At
Page 161 and 162: 11 / A 1'P!' I')IX A DESCIIlPTION O
Page 163 and 164: APPEYN X A (Continued) Columns Head
Page 165 and 166: 1,1 APPENDTX A (Continued) Columns
Page 167 and 168: I 63 APPENUITX 11 (Continued) Colum
Page 169 and 170: Type of' Hyuoeenter I n 3 t r u m e
Page 171 and 172: 10 7 TABLE 3--.DEPT!H QUALITY FACTO
Page 173 and 174: 'rAILE 4--(Contlnued) EDR Earthquak
Page 175 and 176: i I I TABLE 4--- (Continued) MOL Mo
Page 177 and 178: TABLE 4--(Continued) Wt3 Bachmann,
Page 179 and 180: t 75 TABLE 5--Continued JGG Grases,
Page 181 and 182: I i7/ TABLE 6--MAGNITUDE SCALE CODE
Page 183 and 184: IILBV P. liuaco, W. Lescano, A. Buo
Page 185 and 186: TRMl Trinidad Station, Trinidad, We
Page 187 and 188: 211 larrington, I.j., 1944, Volcano
Page 189 and 190: 185 405 1952, Rmto!; s i,,ivoi 6 gi
Page 191 and 192: 187 436 Espejo, G., y fluaco," P.,
Page 193 and 194: I8H9 916 "'El Naciuta'l", (Pt ri 1i
Page 195:
191 Needham, R., ard Steele, A., 19
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