Lithospheric stress state in South America as inferred from tidal triggering of earthquakes

Barra lateral del artículo

PDF
Publicado: jul 1, 1996
DOI: https://doi.org/10.22201/igeof.00167169p.1996.35.3.466
Palabras clave:
Esfuerzo de mareas, efecto de gatillo, Sudamerica

Contenido principal del artículo

Alexei Nikolaevt
Research and Coordinating Center for Seismology and Engineering RAS, Moscow, Russia
Vsevolod Nikolaev
Institute of Physics of the Earth RAS, Moscow, Russia

Resumen

Se presenta un modelo del estado de esfuerzo en la litosfera sudamericana, con base en el desgatillamiento de sismos por efecto de las mareas. Se utilizó un catálogo de 23,399 temblores de mágnitud M>3.5 y se calculó la diferencia entre el m1mero de temblores que ocurre durante fases opuestas de la marea. Se calcularon los coeficientes de Lode-Nadai, que muestran el estado de esfuerzo tensional a lo largo de la Cordillera, y caótico en el interior del continente.

Detalles del artículo

Cómo citar
Nikolaevt, A., & Nikolaev, V. (1996). Lithospheric stress state in South America as inferred from tidal triggering of earthquakes. Geofísica Internacional, 35(3), 329–338. https://doi.org/10.22201/igeof.00167169p.1996.35.3.466
Número
Vol. 35 Núm. 3 (1996): Julio 1, 1996
Sección
Artículo
Creative Commons License

Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-CompartirIgual 4.0.

Citas

ASSUMPCAO, M., 1992. The regional interplate stress field in South America. J. Geophys. Res., 97, 88, 11889-11903. DOI: https://doi.org/10.1029/91JB01590

De FREITAS, S. R. C., M. Van RUYMBEKE B. DUCARME and M. ASSUMPCAO, 1991. Correlation between Earth gravity tides and seismic activity at Joao Camara-Brazil. In: Proceedings of the Workshop: Geodynamical Instrumentation applied to Volcanic Areas. Luxembourg, 363-378.

HEATON, T. H., 1975. Tidal Triggering of earthquakes. Geoph. J. of the Royal Astr. Soc., 43, 307-326. DOI: https://doi.org/10.1111/j.1365-246X.1975.tb00637.x

HEATON, T. H., 1982. Tidal Triggering of earthquakes. Bull. Seism. Soc. Am. 72, 6, 2181-2200. DOI: https://doi.org/10.1785/BSSA07206A2181

KNOPOFF, L., 1964. Earth tides as triggering mechanism for earthquakes. Bull. Seism. Soc. Am., 54, 1865-1870. DOI: https://doi.org/10.1785/BSSA05406A1865

LONGMAN, I. M., 1959. Formulas for computing the tidal accelerations due to the moon and sun. J. Geophys. Res. 64, 2351-2355. DOI: https://doi.org/10.1029/JZ064i012p02351

NIKOLAEV, A. V. and V. A. Nikolaev, 1993a. Correlation between aftershocks of strong Earthquakes and tidal phases as indicator of stress state of media. Reports of Russian Academy of Sciences, 330, 2, 261-266, (in Russian).

NIKOLAEV, A. V. and V. A. Nikolaev, 1993b. Earth's tides influence on the seismicity fine structure in the Ibero-Maghrebian region. Física de Ia Tierra. Madrid, 5, 71-76.

NIKOLAEV, V. A., 1993. Tidal triggering of earthquakes as indicator of lithosphere stress state in Mediterranean. European Geoph. Soc. Annales Geophysicae. 1, 66.

NIKOLAEV, V. A., 1994. Correlation between seismicity and phases of separate tidal waves. Reports of Russian Academy of Sciences. 336, 3, 98-10 (in Russian).

STEFANICK, M. and D. M. JURDY, 1992. Stress observations and driving force models for the South American plate. J. Geophys. Res., 97, B8, 11905-1191. DOI: https://doi.org/10.1029/91JB01798

RICHARDSON, R. M., 1992. Ridge forces, absolute plate motions, and the intraplate stress field. J. Geophys. Res., 97, B8, 11739-11748. DOI: https://doi.org/10.1029/91JB00475