Relocalización de terremotos y sismotectónica mediante un nuevo modelo cortical 3D en el área de la Falla de Alhama de Murcia (SE Iberia)
- J.L. Sańchez-Roldán 1
- J.J. Martínez-Díaz 1
- J.V. Cantavella 2
- J.A. Álvarez-Gómez 1
- J. Morales 3
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1
Universidad Complutense de Madrid
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2
Instituto Geográfico Nacional
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- 3 Instituto de Andaluz de Geofísica
ISSN: 1576-5172
Ano de publicación: 2021
Título do exemplar: X Congreso Geológico de España
Número: 18
Páxinas: 853
Tipo: Artigo
Outras publicacións en: Geotemas (Madrid)
Resumo
The Eastern Betics Shear Zone comprises one of the most active tectonic areas in Iberia due to the convergence between Eurasia and Africa (Martínez-Díaz et al., 2012). We focus our study in the Alhama de Murcia Fault and other nearby faults, that are the source of large paleoseismic events and some damaging series in the historical period. The study aims to give more accurate locations to the hypocentres in the region. This was accomplished by adding data of events recorded by the Andalusian Seismic Institute (IAG) network, and another local temporal network to the one used in the Spanish Catalogue (IGN) for computing a relocation of those events using a new 3D crustal model of the area, created combining recent geophy- sical data both regional and local (e.g. Díaz and Gallart, 2009; Mancilla and Díaz, 2015). New locations, which reduce the uncertainties of their spatial distribution, allow relating series of events to known fracture families.