dor_id: 4133389

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590.#.#.d: Los artículos enviados a la revista "Geofísica Internacional", se juzgan por medio de un proceso de revisión por pares

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: http://revistagi.geofisica.unam.mx/index.php/RGI

351.#.#.b: Geofísica Internacional

351.#.#.a: Artículos

harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

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270.#.#.d: MX

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850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1315/1296

100.1.#.a: Frez, J.; González, J. J.

524.#.#.a: Frez, J., et al. (1989). Sismicidad y mecanismos focales en el Valle Mexicali-Imperial (1973-1985). Geofísica Internacional; Vol. 28 Núm. 4: Octubre 1, 1989; 643-691. Recuperado de https://repositorio.unam.mx/contenidos/4133389

245.1.0.a: Sismicidad y mecanismos focales en el Valle Mexicali-Imperial (1973-1985)

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1989

264.#.1.c: 1989-10-01

653.#.#.a: Sismicidad; Hipocentros; Historia; Mexicali-Baja California; Seismicity; Hypocenters; History; Mexicali-Baja California

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884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1315

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1315

041.#.7.h: spa

520.3.#.a: We report the relocation of ninety hypocenters at the Mexicali seismic zone and the determinations of sixty focal mechanisms of earthquakes that occurred in the Imperial-Mexicali Valley. Stations providing the data are from both sides of the intemational border; seismic catalogs and other determinations found in the literatura are also used in the analysis. The earthquakes with magnitudes less than 5.0 are mostly confined to the MexicaJi and Brawley seismic zones. Several bursts of seismicity occurred in the Valley during the last fifty years. The last one, which took place between 1973 and 1981, has its larger swarms and aftershocks located on non-overlapping sections of the seismic zones. The seismic foei are mainly situated between 5 km and 13 km depth. Main shock epicenters of the most recent four earthquakes with ML > 6.0 occurred over the Cerro Prieto or Imperial fault traces, just outside the seismic zones. Focal mechanisms solutions of these four earthquakes indicate NW right-lateral strike-slip motion. This type of focal mechanism predominates in the Valley. However, the seismic zones show strike-slip, normal and a few reverse faultings. A cluster of events may contain focal mechanisms of different types, even within a period of a few hours. The global features are consistent with tectonics dominated by the relative motion between the Pacific and North American plates.doi: https://doi.org/10.22201/igeof.00167169p.1989.28.4.1317

773.1.#.t: Geofísica Internacional; Vol. 28 Núm. 4: Octubre 1, 1989; 643-691

773.1.#.o: http://revistagi.geofisica.unam.mx/index.php/RGI

022.#.#.a: ISSN-L: 2954-436X; ISSN impreso: 0016-7169

310.#.#.a: Trimestral

300.#.#.a: Páginas: 643-691

264.#.1.b: Instituto de Geofísica, UNAM

doi: https://doi.org/10.22201/igeof.00167169p.1989.28.4.1317

handle: 00c12d1712befd70

harvesting_date: 2023-06-20 16:00:00.0

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file_creator: J. Frez

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245.1.0.b: Sismicidad y mecanismos focales en el Valle Mexicali-Imperial (1973-1985)

last_modified: 2023-06-20 16:00:00

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Artículo

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

Frez, J.; González, J. J.

Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Geofísica, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Frez, J., et al. (1989). Sismicidad y mecanismos focales en el Valle Mexicali-Imperial (1973-1985). Geofísica Internacional; Vol. 28 Núm. 4: Octubre 1, 1989; 643-691. Recuperado de https://repositorio.unam.mx/contenidos/4133389

Descripción del recurso

Autor(es)
Frez, J.; González, J. J.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Sismicidad y mecanismos focales en el Valle Mexicali-Imperial (1973-1985)
Fecha
1989-10-01
Resumen
We report the relocation of ninety hypocenters at the Mexicali seismic zone and the determinations of sixty focal mechanisms of earthquakes that occurred in the Imperial-Mexicali Valley. Stations providing the data are from both sides of the intemational border; seismic catalogs and other determinations found in the literatura are also used in the analysis. The earthquakes with magnitudes less than 5.0 are mostly confined to the MexicaJi and Brawley seismic zones. Several bursts of seismicity occurred in the Valley during the last fifty years. The last one, which took place between 1973 and 1981, has its larger swarms and aftershocks located on non-overlapping sections of the seismic zones. The seismic foei are mainly situated between 5 km and 13 km depth. Main shock epicenters of the most recent four earthquakes with ML > 6.0 occurred over the Cerro Prieto or Imperial fault traces, just outside the seismic zones. Focal mechanisms solutions of these four earthquakes indicate NW right-lateral strike-slip motion. This type of focal mechanism predominates in the Valley. However, the seismic zones show strike-slip, normal and a few reverse faultings. A cluster of events may contain focal mechanisms of different types, even within a period of a few hours. The global features are consistent with tectonics dominated by the relative motion between the Pacific and North American plates.doi: https://doi.org/10.22201/igeof.00167169p.1989.28.4.1317
Tema
Sismicidad; Hipocentros; Historia; Mexicali-Baja California; Seismicity; Hypocenters; History; Mexicali-Baja California
Idioma
spa
ISSN
ISSN-L: 2954-436X; ISSN impreso: 0016-7169

Enlaces