dor_id: 4133358

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/756/1189

100.1.#.a: Martínez, Elsa Guadalupe; Villagán, Mario; Havskov, Jens

524.#.#.a: Martínez, Elsa Guadalupe, et al. (1995). Magnitudes for local earthquakes calculated with the El Salvador seismic network. Geofísica Internacional; Vol. 34 Núm. 2: Abril 1, 1995; 213-220. Recuperado de https://repositorio.unam.mx/contenidos/4133358

245.1.0.a: Magnitudes for local earthquakes calculated with the El Salvador seismic network

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1995

264.#.1.c: 1995-04-01

653.#.#.a: América Central; magnitud; El Salvador; Central America; magnitude; El Salvador

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/756

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/756

041.#.7.h: spa

520.3.#.a: The seismic network in El Salvador consists of mainly 19 telemetered short-period stations installed between 1983 and 1992. The network has a central digitizing unit installed in 1992; all data is digitally processed. The new digital data from El Salvador and other Central American countries has been used to test and calibrate different magnitude scales based on coda duration and amplitude. Due to the small dimension of the network in El Salvador, no attenuation function significantly different from the original Richter relation could be determined. The coda wave magnitude scale calibrated with Ml is: Me = 2.5 * log(coda) + 0.0016 * dist- 1.7 where coda is the coda duration in sees and dist is the hypocentral distance in km. Some data from other Central American countries have been used in order to get a better distance and magnitude range than provided by the El Salvador data. Using the same data set, moment magnitudes Mw were calculated based on P-wave spectra and compared to Ml and Mb from PDE. Average Ml, Mw and Mb were 4.9, 5.2 and 5.0 with data in the magnitude ranges 3.4-6.4, 4.1-6.2 and 3.6-6.0 respectively. The systematic difference between Ml and Mw for the same data set might indicate that the attenuation functions used are inadequate, that there are instrumental problems or that there is some systematic difference in the way Ml and Mw are determined. Despite the uncertainties, internaily consistent magnitudes in reasonable agreement with externally determined magnitudes in the range 4 to 6 can now be determined using the El Salvador digital network based on both coda duration and P or S-wave amplitudes.

773.1.#.t: Geofísica Internacional; Vol. 34 Núm. 2: Abril 1, 1995; 213-220

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: 213-220

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

doi: https://doi.org/10.22201/igeof.00167169p.1995.34.2.756

handle: 00894cb18420a78a

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

856.#.0.q: application/pdf

file_creation_date: 2022-07-07 11:03:02.0

file_modification_date: 2022-07-14 21:27:00.0

file_creator: Elsa Guadalupe Martínez

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245.1.0.b: Magnitudes for local earthquakes calculated with the El Salvador seismic network

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

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