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Seismicity in colombian llanos foothills: Characterization, relocation and local seismic tomography

Muñoz-Burbano, Francisco Javier and Vargas-Jiménez, Carlos Alberto and Chicangana, German (2015) Seismicity in colombian llanos foothills: Characterization, relocation and local seismic tomography. Boletín de Ciencias de la Tierra (38). pp. 14-24. ISSN 2357-3740

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Resumen

An earthquake relocation by seismic simultaneous inversion and double differences methods were done in the Colombian Llanos Foothills from 3º to 5ºN and from 73º to 75ºW. The data used in this work take account 483 earthquakes registered by The Colombia National Seismological Network (RSNC) between 1993 and 2012. For the events relocation the root mean square (RMS) was reduced and several earthquake clusters were identified. The new locations shows principally at southwestern zone are related with the Eastern Frontal Fault System with faults as the Servitá-Santa Maria fault and the Algeciras Fault. In addition this work shows a 3D velocity model indicating an anomaly in the wave behavior related mainly to the low velocity zone under the Eastern Cordillera and minimum variations in average velocity toward southeast zone related with the Amazon Craton. Finally in southwest region where located the faults shows a Vp high velocity anomaly.

Tipo de documento:Artículo - Article
Palabras clave:seismic tomography, earthquake relocation, seismic simultaneous inversion, double differences, Colombian Llanos Foothills
Temática:5 Ciencias naturales y matemáticas / Science > 55 Ciencias de la tierra / Earth sciences & geology
Unidad administrativa:Revistas electrónicas UN > Boletín Ciencias de la Tierra
Código ID:60666
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :28 Noviembre 2017 19:36
Ultima modificación:28 Noviembre 2017 19:36
Ultima modificación:28 Noviembre 2017 19:36
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