Recorded ground motion and estimated soil amplification for the May 11, 2011 Lorca earthquake.

Abstract : On May 11 2011 an earthquake of magnitude 5.2 (Mw) hit the Murcia region of Spain causing significant damage to buildings in the town of Lorca. Accelerograms were recorded by stations of the Instituto Geográfico Nacional and high-amplitude ground motions were observed at the Lorca station, with a PGA of 0.37g. The contribution of a near-field component of ground motion is shown in time histories and in elastic response spectra. Features of near-field ground motions such as directivity could have significantly enhanced the ground shaking caused by this event. Local amplification effects in Lorca were investigated by the H/V spectral ratio technique and an array method. Information obtained from the geophysical field survey allowed the definition of representative soil columns and site classifications according to Eurocode-8. Modelling of site response is conducted for an example location. The aftershocks recorded at different sites confirm the soil amplification at these locations.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [32 références]  Voir  Masquer  Télécharger

https://hal-brgm.archives-ouvertes.fr/hal-01097243
Contributeur : Myriam Belvaux <>
Soumis le : vendredi 19 décembre 2014 - 11:21:51
Dernière modification le : lundi 22 août 2016 - 18:16:45
Document(s) archivé(s) le : lundi 23 mars 2015 - 17:37:06

Fichier

122212EQS354M.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

Citation

Myriam Belvaux, Albert Macau, Sara Figueras, Teresa Susagna, Xavier Goula. Recorded ground motion and estimated soil amplification for the May 11, 2011 Lorca earthquake.. Earthquake Spectra, Earthquake Engineering Research Institute, 2015, 31 (4), pp.24. ⟨10.1193/122212EQS354M⟩. ⟨hal-01097243⟩

Partager

Métriques

Consultations de la notice

199

Téléchargements de fichiers

786