Sismicidad y tectónica en el área de Becerreá - Triacastela (Lugo, NO España)

The most active seismic spot in the northwestern part of the Iberian Peninsula is located between Becerreá and Triacastela (Lugo). Since 1995 an apparent increase of the activity has taken place: several seismic events took place, which included twenty earthquakes of the magnitude > 4 and a m...

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Detalles Bibliográficos
Autores: López Fernández, Carlos, Pulgar, J. A., Gallart, J., González Cortina, J. M., Díaz, J., Ruiz, Mario
Tipo de recurso: artículo
Fecha de publicación:2004
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:español
OAI Identifier:oai:ariasmontano.uhu.es:10272/8961
Acceso en línea:http://hdl.handle.net/10272/8961
Access Level:acceso abierto
Palabra clave:Falla de Becerreá
Triacastela
Proyecto CASPI
Sismicidad
Descripción
Sumario:The most active seismic spot in the northwestern part of the Iberian Peninsula is located between Becerreá and Triacastela (Lugo). Since 1995 an apparent increase of the activity has taken place: several seismic events took place, which included twenty earthquakes of the magnitude > 4 and a main event of magnitude 5.3 (21 May 1997). Most recently, a permanent low-magnitude activity (5-10 events/month) is registered in this zone. Lack of suitable seismic information prevents any rigorous analysis of this activity and its origin. We undertook a detailed study of the local seismicity between 1999 and 2002, based on the deployment of a temporary seismic array (CASPI Project). The integration of the new seismic data and the geologic information has allowed to obtain an updated image of the seismicity of this zone and to identify the Becerreá fault like the main seismogenetic source