Implicaciones neotectónicas de la serie sísmica de Adra (1993-1994)Ejemplo de un terremoto compuesto.

  1. Martínez Díaz, J.J. 1
  2. Hernández Enrile, J.L. 1
  1. 1 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

Revista:
Geogaceta

ISSN: 0213-683X

Año de publicación: 1996

Título del ejemplar: Comunicaciones presentadas en el IV Congreso Nacional de Geología, Alcalá de Henares, 1996

Número: 20

Páginas: 834-837

Tipo: Artículo

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Otras publicaciones en: Geogaceta

Resumen

In this work has been analysed the 1993-1994 Adra seismic sequence characterized by two mainshocks of magnilude 5.0 and 4.9. The local neotectonic, aftershock distribution and fault plane solutions are performed and we find significant relations between them this seismic sequence respond to a "compound earthquake mechanism" caused by the reactivation of a N 170 E fault (second mainshock mb: 4.9) as a result of the first mainshock (mb: 5.0) asociated to a N 135 E oblique slip fault. The aflershock activity is acumulated into a fault bounded crustal block as a result of the field stress readjustment and changes in the pore pressure triggered off by the two mainshocks.

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