Venezuela

Summary

Introduction

Proyecto Caribe is an ongoing experiment to investigate the large scale structure and tectonic framework of the northern boundary of South America. A 74 station, broadband array is currently operational in Venezuela with instruments running from the craton south of the Orinoco to OBS instruments located on oceanic crust of the Caribbean plate. Initial work on seismicity suggests this experiment will improve detection and location of events in the Orinoco basin and southern Venezuela where national network coverage is sparse. Initial measurements of P wave residuals from teleseismic earthquakes indicate a large signal is present. This suggests P wave tomography is likely to yield important insights on the three-dimensional geometry of the Caribbean-South American plate boundary. Finally, initial inspections of data from the experiment suggest there are large variations in the propagation characteristics of regional phases across Venezuela. In particular, we note that high amplitude, impulsive Sn phases are observed in the Maturin Basin, but Lg is not observed there. In contrast, stations on the craton south of the Orinoco River commonly record both Sn and Lg. This indicates a major difference in lower crust and upper mantle structure for the two regions.

Source

Station Map

Station map

Station List: Nanometrics Sites

(plain text version)

sta ondate offdate lat lon elev staname statype refsta dnorth deast
BAUV 2001129 8.9433 -68.0415 0.106 Baul - Cojedes
BIRV 2000253 10.4757 -66.2692 0.2 Birongo - Miranda
CAIV 2002275 7.3262 -66.3216 0.076 Caicara - Bolivar
CAPV 2002226 7.8649 -72.3143 1.178 Capacho - Tachira
CRUV 2001033 10.6165 -63.1842 0.608 Carupano - Sucre
CUNV 1999311 10.1777 -64 0.15 Cumanacoa - Sucre
CUPV 2002296 10.0639 -65.8056 0.634 Cupira - Miranda
CURV 2002171 10.0128 -69.9611 0.75 Curarigua - Lara
DABV 2002107 10.9218 -70.6366 0.22 Dabajuro - Falcon
ELOV 2003001 7 -69.7 0.105
ELOZ 2003001 7 -69.7 0 Elorza
GUIV 2000319 10.6377 -62.2082 0.05 Guiria - Sucre
GUNV 2001047 10.145 -62.9425 0.06 Guanoco - Sucre
GURV 2003001 7.7598 -63.0854 0.199
IMOV 2003001 5.4204 -67.6561 0.081
INTV 2000033 10.4167 -67.3333 1.3 Intevep - Miranda
ITEV 2003001 11.3552 -63.132 0.0013
JACV 2002303 11.0866 -68.8342 0.369 Jacura
LBAV 2002187 11.8216 -64.5977 0.01 La Blanquilla
LMOV 2003001 12.4 -70.8 0 Los Monjes
LTEV 2002191 11.3552 -63.132 0.013 Los Testigos
LUEV 2003001 11.0874 -68.8299 0.349
LUPV 2003001 5.8432 -61.4614 1.406 Luepa - Bolivar
MACV 1999311 10.9767 -64.1782 0.008 Macarao - Nva. Esparta
MERV 2001320 9.2617 -66.2972 0.168 Las Mercedes - Guarico
MONV 2002107 11.955 -69.9705 0.239 Monte Cano - Falcon
ORCV 2003001 11.8124 -66.1937 0.01 La Orchila
ORIV 2002126 9.0696 -63.418 0.102 Oritupano
PARV 2002094 8.9592 -64.7958 0.186 Pariaguan
PAYV 2003001 5.4204 -67.6561 0.083
PCRV 2003001 10.2 -64.6 0 CTBTO - Borehole, Porta La Cruz
PLT 2003001 10.1633 -64.5897 0.395 Pto. La Cruz - Anzoategui
PTAV 2003001 5.4204 -67.6562 0.081 Pto. Ayacucho - Amazonas
QARV 2002085 10.2061 -70.5234 0.548 Qda. Arriba
RIOV 2002310 8.069 -61.8145 0.232 Rio Grande - Bolivar
SANV 2002149 9.501 -69.5365 1.083 Sanarito - Lara
SDV 1995222 8.8863 -70.626 1.58 Santo Domingo - Merida
SIQV 2002150 10.6489 -69.8079 0.4 Siquisique - Falcon
SOCV 2002227 8.2842 -70.8566 0.325 Socopo - Tachira
TERV 2002325 9.9586 -69.2865 1.235 Terepaima - Lara
TEST 2000251 10.4692 -66.8102 0.875 El Llanito - Miranda
TINV 2003001 10.2 -68.2 0 Tinaquillo - Cojedes
TOCV 2003001 7.7598 -63.0851 0.157 Tocomita - Bolivar
TURV 2002318 10.4474 -67.8382 0.2 Turiamo
VIGV 2003001 8.8401 -71.3642 0.43 El Vigia - Merida
VIRV 2001243 10.503 -72.4061 0.148 Villa del Rosario - Zulia

Total: 46

Station List: Secarib Land

(plain text version)

sta ondate offdate lat lon elev staname statype refsta dnorth deast
ABPC 2004009 9.4608 -64.8207 0.1088 Aragua de Barcelona
ARPC 2004008 9.7438 -63.7972 0.2977 Areo
CAPC 2003344 7.3429 -61.8249 0.1777 El Callao
CMPC 2003346 7.6508 -64.0732 0.1456 Cerro El Mono
CUPC 2003337 10.1501 -63.8168 0 Cumanacoa
EDPC 2003345 6.7127 -61.6392 0.1242 El Dorado
FCPC 2003345 9.6502 -66.8342 0.2128 San Francisco de Cara
JMPC 2003348 9.8872 -67.3968 0.4979 San Juan de Los Morros
LAPC 2003346 8.985 -65.7719 0.1627 Socorro
LMPC 2004010 9.3553 -67.3843 0.1459 Hato La Cueva
MAPC 2003342 7.4168 -65.1881 0.0519 Maripa
MIPC 2003338 10.9653 -64.2905 0 Margarita Island
MNPC 2003348 8.9876 -62.7444 0.0451 Mata Negra
MOPC 2003341 6.5861 -66.8426 0.095 Morachalito
MUPC 2003352 8.3274 -64.2946 0.1313 Mucura
PAPC 2003349 8.0344 -62.655 0.4716 El Pao
PFPC 2004012 8.3277 -65.9443 0.1315 Espino
PRPC 2003350 8.5019 -63.625 0.1437 Proforca
ROPC 2003344 9.9092 -66.3847 0.4327 Orocollal
RPPC 2003347 8.9485 -66.4361 0.1619 Rancho Pelao
SIPC 2003348 9.3596 -63.0575 0.0383 Santa Rita
SMPC 2003343 8.5127 -66.3219 0.1197 El Pero
SRPC 2003351 9.5825 -64.2942 0.3208 Santa Rosa
STPC 2003342 8.1365 -66.2544 0.0806 Santa Rita
ULPC 2003357 8.8571 -67.3866 0.1014 Calabozo
VIPC 2003347 7.8605 -62.0655 0.2564 Villa Lola
ZUPC 2004015 8.3597 -65.1951 0.096 Zuata

Total: 27

Station List: Secarib OBS

(plain text version)

sta ondate offdate lat lon elev staname statype refsta dnorth deast
B151 2004076 12.9915 -67.6513 -3.616 Bacardi 151
BLOS 2004082 11.5708 -61.6677 -0.461 Black Orchid Shooter
BTBT 2004082 11.4989 -62.501 -0.129 Bat Bite
DAQI 2004080 13.3198 -63.3092 -3.853 Daquiri
DKSS 2004081 11.7515 -63.7699 -1.117 Devil's Kiss
DRKS 2004082 11.9992 -62.6685 -2.4 Dark and Stormy
MHTO 2004076 13.9497 -66.491 -4.997 Mohito
MTAI 2004080 12.7209 -64.9313 -3.853 Mai Tai
PINA 2004078 10.6796 65.22 -1.103 Pina Colada
PNCH 2004077 11.2493 -66.5009 -0.908 Rum Punch
RRNR 2004079 11.8499 -65.418 -3.997 Rum Runner
SHRB 2004077 11.2707 -67.3496 -1.86 Shrob
SOMB 2004079 12.7492 -66.1883 -4.976 Sombrero
ZOMB 2004081 12.4511 -63.5522 -0.644 Zombie

Total: 14

URL: http://eqinfo.ucsd.edu/deployments/bbarray/venezuela.php [Last updated: 2015-10-22 (295) 23:12:33 UTC]