Colapsos cosísmicos y paleosismicidad en la sima de Benis (Cieza, SE España), asociados al terremoto de Mula (1999; VII mks; Mb = 4,8)

• R. Pérez-López ^[1] ; J.J. Martínez-Díaz ^[2] ; M.A. Rodríguez-Pascua ^[1] ; P.G. Silva ^[3] ; J.L Giner-Robles ^[1] ; M. Bejar ^[2] ; A. Marcos-Nuez ^[4] ; J.P. Calvo ^[5]
  1. [1] Universidad San Pablo

     Universidad San Pablo

     México

     
  2. [2] Universidad Complutense de Madrid

     Universidad Complutense de Madrid

     Madrid, España

     
  3. [3] Universidad de Salamanca

     Universidad de Salamanca

     Salamanca, España

     
  4. [4] Comunidad de Madrid

     Comunidad de Madrid

     Madrid, España

     
  5. [5] Instituto Geológico y Minero de España

     Instituto Geológico y Minero de España

     Madrid, España

     

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• Localización: Contribuciones al estudio del periodo cuaternario / coord. por Javier Lario, Pablo G. Silva Barroso, 2007, ISBN 978-84-7484-201-2, págs. 159-160
• Idioma: español
• Texto completo no disponible (Saber más ...)
• Resumen

  • In this work we present the first conclusions obtained from the morphotectonic and seismotectonic analysis of the Benis Cave (Cieza, SE of Spain). Both analyses provide new descriptions of seismic structures formed during a known instrumental earthquake and a new type of paleoseismic feature or seismothem (a migrating coral flowstone). From the last seismothem, at least two paleoearthquakes have been identified within the cave. During the Mula earthquake (mb = 4.8, MSK VII, 1999), a massive collapse of metric blocks at -156m was reported. This direct effect caused by a low magnitude earthquake shows the high sensitivity of caves to seismic shaking in this area.