Título
MISLOCATION OF MEXICAN EARTHQUAKES AS REPORTED IN INTERNATIONAL BULLETINS
Autor
Shri Krishna Singh
Nivel de Acceso
Acceso Abierto
Materias
Mexican Earthquakes - ([http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1047]) Mexican Earthquakes - (LCC) Seismology - (LCC) concept8601 - (UNESCO) Seismology - (GEOREF) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) CIENCIAS DE LA TIERRA Y DEL ESPACIO - (CTI) GEOFÍSICA - (CTI) SISMOLOGÍA Y PROSPECCIÓN SÍSMICA - (CTI)
Resumen o descripción
Comparison of locations of earthquakes determined from field seismographs or from special studies with those reported in PDE and ISC bulletins suggests that shallow coastal earthquakes in Mexico are systematically mislocated in these bulletins. In general the epicenters are shifted about 35 km towards N 35°-45°E. ISC, more often than PDE, reports depths based on depth phases. These depths, although slightly greater than the depths estimated from synthetic modeling or field data, are more accurate than the PDE depths. However, there is little to choose between the two bulletins as far as epicentral locations are concerned. A modest increase in the number of Mexican stations sending readings to PDE and ISC appears to improve the locations by about 10 km or so. The mislocations are most probably due to higher velocity of the Cocos plate below Mexico. The systematic mislocation should be taken into account in the use of PDE and ISC bulletins.
Editor
UNAM, Instituto de Geofísica
Fecha de publicación
1985 1 de abril de 1985
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
http://rigeofisica.ssn.unam.mx/jspui/handle/ssnmx/14567
Singh, S. K.,
&
Lermo, J. (1985). MISLOCATION OF MEXICAN EARTHQUAKES AS REPORTED IN INTERNATIONAL BULLETINS. Geofísica Internacional, 24(2), 333-351. http://dx.doi.org/10.22201/igeof.00167169p.1985.24.2.1047
Formato
Fuente
http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1047
Idioma
Inglés
Relación
Geofísica Internacional
0016-7169
Repositorio Orígen
Repositorio de Literatura del Servicio Sismológico Nacional
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