Sismicidad y mecanismos focales en el Valle Mexicali-Imperial (1973-1985)

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Publicado: oct 1, 1989
DOI: https://doi.org/10.22201/igeof.00167169p.1989.28.4.1317
Palabras clave:
Sismicidad, Hipocentros, Historia, Mexicali-Baja California

Contenido principal del artículo

J. Frez
División de Ciencias de la Tierra, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada. B. C., 22830, México.
J. J. González
División de Ciencias de la Tierra, Centro de Investigación Cientifica y de Educación Superior de Ensenada, Ensenada. B. C., 22830, México.

Resumen

Se reportan 90 hipocentros relocalizados en la zona sísmica Mexicali y 60 soluciones de mecanismo focal de sismos del Valle Mexicali-Imperial. La información proviene de estaciones ubicadas en ambos lados de la frontera internacional y se complementa con catálogos y otros resultados ya publicados. Los epicentros con magnitud menor de 5.0 se concentran principalmente en las zonas sísmicas Mexicali y Brawley. En los últimos 50 años se produjeron períodos de fuerte actividad en el Valle. El último, ocurrido entre 1973 y 1981, tuvo sus enjambres y réplicas de sismos con ML > 6.0 ubicados principalmente en sectores no-traslapados de las zonas sísmicas. Los focos están mayoritariamente entre los 5 y 13 km de profundidad. Los cuatro últimos temblores con ML> 6.0 ocurrieron en las fallas Cerro Prieto e Imperial, inmediatamente afuera de las zonas sísmicas. Los mecanismos focales de estos cuatro temblores son compatibles con un desplazamiento de rumbo lateral-derecho en dirección noroeste. Este desplazamiento es predominante en el Valle, aunque las zonas sísmicas presentan mecanismos de rumbo, normales y, en menor medida, inversos. Un mismo nido sísmico puede originar mecanismos de diferente tipo, aún en un lapso de pocas horas. Globalmente, las características encontradas concuerdan con una tectónica dominada por el movimiento relativo entre las placas Pacífico y Norteamericana.

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Frez, J., & González, J. J. (1989). Sismicidad y mecanismos focales en el Valle Mexicali-Imperial (1973-1985). Geofísica Internacional, 28(4), 643–691. https://doi.org/10.22201/igeof.00167169p.1989.28.4.1317
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Vol. 28 Núm. 4 (1989): Octubre 1, 1989
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ALBORES, A., A. REYES, J. N. BRUNE, J. GONZALEZ, L. GARCILAZO and F. SUAREZ, 1980. Seismicity studies in the region of the Cerro Prieto geothermal field. Geothermics, 9, 65-77. DOI: https://doi.org/10.1016/0375-6505(80)90024-3

ANDERSON, J. G. and B. BODIN, 1987. Earthquake occurrence models and historical seismicity in the Mexicali-Imperial Valley. Bull. Seismo Soc. Am., 77, 562-579.

BOORE, D. M. and J. B. FLETCHER, 1982. Preliminary study of selected aftershocks from digital acceleration and velocity recordings, in The Imperial Valley, California, Earthquake of October 15, 1979. U. S. Geol. Surv., Prof. Pap., 1254, 109-118.

BRACE, W. F. and J. D. BYERLEE, 1970. California earthquakes: why only shallow focus? Science, 168, 1573-1575. DOI: https://doi.org/10.1126/science.168.3939.1573

BRUNE, J. N. and C. R. ALLEN, 1967. A microearthquake survey of the San Andreas fault system of Southern California. Bull. Seism. Soc. Am., 57, 227-296. DOI: https://doi.org/10.1785/BSSA0570020277

BRUNE, J. N., C. LOMNITZ, C. R. ALLEN, F. LEHNER and A. REYES, 1976. A permanent seismograph array around the Gulf of California. Bull. Seism. Soc. Am. 66, 969-978. DOI: https://doi.org/10.1785/BSSA0660030969

COMBS, J. and D. HADLEY, 1977. Microearthquake, investigation of the Mesa geothermal anomaly, Imperial Valley, California. Geophys., 42, 17-33. DOI: https://doi.org/10.1190/1.1440709

DOSER, D. I. and H. KANAMORI, 1986a. Depth of seismicity in the Imperial Valley region (1977-1983) and its relationship to heat flow, crustal structure and the October, 1979, earthquake. J. Geophys. Res., 91, 675-688. DOI: https://doi.org/10.1029/JB091iB01p00675

DOSER, D. I. and H. KANAMORI, 1986b. Spatial and temporal variations in seismicity in the Imperial Valley. Bull. Seism. Soc. Am., 76, 421-438. DOI: https://doi.org/10.1785/BSSA0760020421

ELDERS, W. A., R. W. REX, T. MEIDAV, P. T. ROBINSON and Sh. BIEHLER, 1972. Crustal spreading in Southern California. Science, 178, 16-23. DOI: https://doi.org/10.1126/science.178.4056.15

FREZ, J., 1982. Main location and focal mechanism, in The Mexicali Valley Earthquake of June, 1980, J. G. Anderson and R. S. Simons (Eds.), Newslet. Earthquake Eng. Res. Inst., 16-3, 74-76.

FUIS, G. S. and M. SCHNAPP, 1977. The November-December 1976 earthquake swarms in northern Imperial Valley, California: Seismicity on the Brawley fault and related structures (Résumé), EOS, Transactions Am. Geophys. Union, 58, 1188.

FUIS, G. S., W. D. MOONEY, J. H. HEALEY, G. A. McMECHAN and W. J. LUTTER, 1982. Crustal Structure of the Imperial Valley Region, in The Imperial Valley, California, Earthquake of October 15, 1979. U. S. Geol. Surv. Prof. Pap., 1254, 25-49.

GARDNER, J. and L. KNOPOFF, 1974. Is the sequence of earthquakes in Southern California, with aftershocks removed Poissonian? Bull. Seism. Soc. Am., 64, 1363-1367. DOI: https://doi.org/10.1785/BSSA0640051363

GILPIN, B. and T. LEE, 1978. A microearthquake study in the Salton Sea geothermal area, California. Bull. Seism. Soc. Am., 68, 441-450.

GOFF, J. A, E. A BERGMAN and S. C. SOLOMON, 1987. Earthquake source mechanisms and transform fault tectonics in the Gulf of California. J. Geophys. Res., 92, 10485-10510. DOI: https://doi.org/10.1029/JB092iB10p10485

GONZALEZ, J. J., 1986. Sismatectónica del Valle de Mexicali: 1977-1980. Tesis de Maestría, CICESE, Ensenada, México, 164 pp.

GONZALEZ, J. J., F. NAVA and A. REYES, 1984. Foreshock and aftershock activity of the 1976 Mesa de Andrade, Mexico, earthquake. Bull. Seism. Soc. Am., 74, 223-233. DOI: https://doi.org/10.1785/BSSA0740010223

GONZALEZ, J. and F. SUAREZ, 1984. Geological and seismic evidence of a new branch of the Agua Blanca Fault. Geophys. Res. Lett., 11, 42-45. DOI: https://doi.org/10.1029/GL011i001p00042

GONZALEZ, M. y L. MUNGUIA, 1985. Determinación epicentral y mecanismos de falla del sismo de Pino Solo, Baja Califarnia, México, del 8 de mayo de 1985. Resumen, Reunión Anual, Unión Geofísica Mexicana.

HADLEY, D. and H. KANAMORI, 1979. Regional S-wave structure for southern California from the analysis of teleseismic Rayleigh waves. Geophys. J. Roy. Astr. Soc., 58, 655-666. DOI: https://doi.org/10.1111/j.1365-246X.1979.tb04800.x

HAMILTON, R., 1970. Time-term analysis of explosion data from the vecinity of the Borrego Mountain, California, earthquake of 9 April, 1968. Bull. Seism. Soc. Am., 60, 367-381.

HILEMAN, J. A, C. R. ALLEN and J. M. NORDQUIST, 1973. Seismicity of the Southern California region. 1 January 1932 to 31 December 1972, Seism. Lab., Caltech, Pasadena, Ca., 490 pp.

HILL, D. P., 1977. A model for earthquake swarms. J. Geophys. Res., 82, 1347-1352. DOI: https://doi.org/10.1029/JB082i008p01347

HILL, D. P., 1978. Seismic evidence far the structure and Cenozoic Tectonics of the Pacific Coast States, in R. B. Smith and G. P. Eaton (Eds.), Cenozoic Tectonics and Regional Geophysics of the Western Cordillera. Geol. Soc. Am., Memoir 152,338 pp. DOI: https://doi.org/10.1130/MEM152-p145

HILL, D. P., P. MOWINCKEL and L. G. PEAKE, 1975. Earthquakes, active faults, and geothermal areas in the Imperial Valley, California. Science, 88, 1306-1308. DOI: https://doi.org/10.1126/science.188.4195.1306

HUTTON, K. L., C. R. ALLEN and C. E. JOHNSON, 1985. Seismicity of southern California. Earthquakes of ML 3.0 and greater, 1975 through 1983. Seismological Laboratory, California Institute of Technology, Pasadena, Ca., 143 pp.

JOHNSON, C. E., 1979. CEDAR - an approach to the computer automation of short-period local seismic networks; seismotectonics of the Imperial Valley of Southern California. California Institute of Technology. Doctoral Paper, 343 pp.

JOHNSON, C. E. and D. M. HADLEY, 1976. Tectonic implications of the Brawley earthquake swarm, Imperial Valley, California, January 1975. Bull. Seism. Soc. Am., 66, 1133-1144.

JOHNSON, C. E. and D. P. HILL, 1982. Seismicity of the Imperial Valley, in The Imperial Valley, California, Earthquake of October 15, 1979. U. S. Geol. Surv. Prof. Pap., 1254, 15-24.

JOHNSON, C. E. and L. K. HUTTON, 1982. Aftershocks and pre-earthquake seismicity, in The Imperial Valley, California, Earthquake of October 15, 1979. U. S. Geol. Surv. Prof. Pap., 1254, 59-76.

JOHNSON, T. L., J. MADRID and T. KOCZYNSKI, 1976. A study of microseismicity in northern Baja California, México. Bull. Seism. Soc., 66, 1921-1929. DOI: https://doi.org/10.1785/BSSA0660061921

KEILIS-BOROK, V. I., R LAMOUREUX, C. JOHNSON and B. MINSTER, 1982. Swarms of main shocks in Southern California. Earthq. Pred. Res., 1, 135-151.

KNOPOFF, L. and J. K. GARDNER, 1969. Homogeneous catalogue of earthquakes. Proc. Nat. Acad. Sci., 63, 1051-1054. DOI: https://doi.org/10.1073/pnas.63.4.1051

LEE, W. H. and J. C. LAHR, 1975. HYP071 (revised): A computer program for determining hypocenter, magnitude and first motion pattern of local earthquakes. U. S. Geol. Surv. Open-file Rept., 75-311. DOI: https://doi.org/10.3133/ofr75311

LEGG, M. R, 1980. Seismicity and Tectonics of the Inner Continental Borderland of Southern California and Northern Baja California, México. Master Degree paper, University of California, San Diego, 60 pp.

LOMNITZ, C., F. MOOSER, C. R. ALLEN, J. N. BRUNE y W. THATCHER, 1970. Sismicidad y tectónica de la región norte del Golfo de California, México. Resultados preliminares. Geofísica Internacional, 10, 2, 37-48. DOI: https://doi.org/10.22201/igeof.00167169p.1970.10.2.1165

MAGISTRALE, H., L. JONES and H. KANAMORI, 1989. The Superstition Hills, California, Earthquake of 24 November, 1987. Preprint. DOI: https://doi.org/10.1785/BSSA0790020239

MAJER, E. L., T. V. McEVILLY, A. ALBORES and S. DIAZ, 1980. Seismological studies at Cerro Prieto. Geothermics, 9, 79-88. DOI: https://doi.org/10.1016/0375-6505(80)90025-5

MORGAN, J. P. and E. M. PERMENTIER, 1984. Lithospheric stress near a ridge-transform intersection. Geophys. Res. Let., 11, 113-116. DOI: https://doi.org/10.1029/GL011i002p00113

MUNGUIA, L. and J. N. BRUNE, 1984. High stress drop events in the Victoria, Baja California earthquake swarm of 1978 March. Geophys. J. R. Astr. Soc., 76, 725-752. DOI: https://doi.org/10.1111/j.1365-246X.1984.tb01919.x

NAVA, A. F. and J. N. BRUNE, 1982. An earthquake-explosion reversed refraction line in the Peninsular Ranges of Southern California and Baja California Norte. Bull. Seism. Soc. Am. 72, 1195-1206. DOI: https://doi.org/10.1785/BSSA0720041195

NAVA, A. F. and J. N. BRUNE, 1983. Source mechanism and surface wave excitation for two earthquakes in northern Baja California. Geophys. J. R. Astr. Soc., 73, 739-763. DOI: https://doi.org/10.1111/j.1365-246X.1983.tb03343.x

NORDQUIST, J. M., 1964. A catalogue of Southern California earthquakes and associated electronic data processing programs. Bull. Seism. Soc. Am., 54, 1003-1011. DOI: https://doi.org/10.1785/BSSA0540031003

NORRIS, R., C. JOHNSON, L. JONES and K. HUTTON, 1986. The Southern California Network Bulletin. U. S. Geol. Surv. Open File Report, 86-96, 32 pp. DOI: https://doi.org/10.3133/ofr8696

REBOLLAR, C. J., A. REYES y M. REICHLE, 1983. Estudio del enjambre de San Quintín, Baja California, México, ocurrido durante 1975. Geofísica Internacional, 21, 4, 331-358. DOI: https://doi.org/10.22201/igeof.00167169p.1982.21.4.871

REBOLLAR, C. and M. S. REICHLE, 1987. Analysis of the seismicity detected in 1982-1984 in the Northern Peninsular Ranges of Baja California. Bull. Seism. Soc. Am., 67, 159-171.

REICHLE, M. and I. REID, 1977. Detailed study of earthquake swarms from the Gulf of California. Bull. Seism. Soc. Am., 77, 173-183.

REYES, A., J, BRUNE, T. BARKER, L. CANALES, J. MADRID, J. REBOLLAR and L. MUNGUIA (1975). A microearthquake survey of the San Miguel Fault zone; Baja California, México. Geophys. Res. Lett., 2, 56-59. DOI: https://doi.org/10.1029/GL002i002p00056

RICHTER, Ch. F., 1958. Elementary Seismology. W. H. Freeman, San Francisco, EUA. 768 pp.

SEGALL, P. and D. D. POLLAND, 1980. Mechanics of discontinuous faults. J. Geophys. Res., 85, 4337-4350. DOI: https://doi.org/10.1029/JB085iB08p04337

SILVER, P. G. and J. N. VALETTE-SILVER, 1987. A spreading episode at the southern end of the San Andrés fault system. Nature, 326, 589-593. DOI: https://doi.org/10.1038/326589a0

SYKES, L. R., 1970. Focal mechanism solutions for earthquakes along the World Rift System. Bull. Seism. Soc. Am., 60, 1749-1752.

TRIFUNAC, M. D. and J. N. BRUNE, 1970. Complexity of energy release during the Imperial Valley, California, Earthquake of 1940. Bull Seism. Soc. Am., 60, 137-160.

THATCHER, W. and J. N. BRUNE, 1971, Seismic study of the oceanic ridge earth-quake swarm in the Gulf of California. Geophys. J. R. Astr. Soc., 22, 473-489. DOI: https://doi.org/10.1111/j.1365-246X.1971.tb03615.x

WEAVER, C. S. and D. P. HILL, 1978/1979. Earthquake swarms and local crustal spreading along major strike-slip faults in California. Pageoph., 117, 51-64. DOI: https://doi.org/10.1007/978-3-0348-6525-8_4

WONG, V., J. FREZ and F. SUAREZ, 1989. The Mexicali (Victoria) earthquake of June 9, 1980. Bull. Seism. Soc. Am. (submitted).