dor_id: 4132595

506.#.#.a: Público

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

510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT); Scientific Electronic Library Online (SciELO); SCOPUS, Dialnet, Directory of Open Access Journals (DOAJ); Geobase

561.#.#.u: https://www.geofisica.unam.mx/

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

590.#.#.c: Open Journal Systems (OJS)

270.#.#.d: MX

270.1.#.d: México

590.#.#.b: Concentrador

883.#.#.u: https://revistas.unam.mx/catalogo/

883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

883.#.#.1: https://www.publicaciones.unam.mx/

883.#.#.q: Dirección General de Publicaciones y Fomento Editorial

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

856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1420/1435

100.1.#.a: Group, Seismology; Cardenas, A.; Cruz, J.L.; Guzmán, M.; Jiménez, Z.; Novelo, D.; Pacheco, J .F.; Pomposo, G.; Quintanar, L.; Santiago, J.A.; Singh, S.K.; Tan, Y.; Valdés, C.; Mijares, H.; Nava, E.; Rodríguez, M.; Gutiérrez, C.; Guevara, E.; Quaas, R.; Ramos, E.; Santoyo, M.; González, R.

524.#.#.a: Group, Seismology, et al. (1995). The Milpa Alta earthquake of January. Geofísica Internacional; Vol. 34 Núm. 4: Octubre 1, 1995; 355-362. Recuperado de https://repositorio.unam.mx/contenidos/4132595

245.1.0.a: The Milpa Alta earthquake of January

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1995

264.#.1.c: 1995-10-01

653.#.#.a: Sismo; Faja Volcánica Trans-Mexicana; Earthquake; Trans-Mexican Volcanic Belt

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico revistagi@igeofisica.unam.mx

884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1420

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1420

041.#.7.h: spa

520.3.#.a: In the past year there has been a significant increase in the number of seismic stations operating in the Valley of Mexico. Also, a dense network of six stations is in place around the Popocatepetl volcano, in response to the recent increase in seismic and fumarolic activity. For this reason, the recent earthquake of January 21, 1995 (Me= 3.9), located near the town of Milpa Alta, at a depth of about 12 km, is the best recorded event in the Trans-Mexican Volcanic Belt. The analysis of this earthquake was facilitated by two broadband seismographs, one in Ciudad Universitaria (CU) and the other near Tlamacas, both of which recorded this event. To constrain the focal mechanism we developed an algorithm which uses firstmotion data, polarities of SV2 and SH phase, and Pz/SH and SV2/SH ratios measured on displacement broadband seismograms. The focal mechanism corresponds to a normal-faulting event with significant (50%) strike-slip component (azimuth 106°, dip 63°, rake -39°). This mechanism is nearly identical to the composite focal mechanism of the aftershocks of February 7, 1984 (Mc= 3.9) earthquake, which occurred in the nearby town of Juchitepec. The T-axes of the two events are oriented NS, in agreement with the stress orientation inferred from the alignment of the cinder cones in the region. This extensional stress regime in the region may be due to the elevation of the altiplano and/or due to seaward migration of the trench.

773.1.#.t: Geofísica Internacional; Vol. 34 Núm. 4: Octubre 1, 1995; 355-362

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: 355-362

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

doi: https://doi.org/10.22201/igeof.00167169p.1995.34.4.1420

handle: 09f6d5ec68a80370

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

856.#.0.q: application/pdf

file_creation_date: 2022-08-08 19:19:45.0

file_modification_date: 2022-08-08 21:47:03.0

file_creator: Seismology Group

file_name: e24656894a1cc1ac6d3bad93e2fe8c2d8fc72758285b19062a54e3ab003a5420.pdf

file_pages_number: 8

file_format_version: application/pdf; version=1.7

file_size: 2406604

245.1.0.b: The Milpa Alta earthquake of January 21, 1995

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

license_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es

license_type: by-nc-sa

No entro en nada

No entro en nada 2