ShakeMap implementation for Pyrenees in France-Spain border: regional adaptation and earthquake rapid response process.

Didier Bertil (1) , Jordi Roviró (2) , Jose Antonio Jara (3) , Teresa Susagna (2) , Eduard Nus (2) , Xavier Goula (2) , Bastien Colas (1) , Guillaume Dumont (1) , Luis Cabañas (4) , Resurección Anton (4) , Marie Calvet (5)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 IGC - Institut Geològic de Catalunya
3 GEOCAT
4 IGN - Instituto Geografico Nacional
5 DTP - Dynamique terrestre et planétaire

The USGS-ShakeMap package is used with a regional adaptation to provide automatic shake maps in rapid response for Pyrenean earthquakes. The Near Real Time system relies on servers designed for data exchange between transborder organizations involved in the Sispyr project. First maps will be provide as soon as possible after the shock, and updated with observed macroseismic intensities on the following hours. Regional Predictive Equations Tapia (2006) and Goula et al. (2008) are selected after tests with regional data. When data are not sufficient, European relations for similar seismotectonic context are selected (Akkar & Bommer, 2007, 2010). For ground motion/intensity conversions, Souriau (2006) for PGA, Faccioli & Cauzzi (2006) for PGV are preliminary choices. Site effects are taking account from geological considerations. 7 classes of soil are defined. Amplification factors are deduced from ratio between soil and bedrock spectra.

Mots clés: mouvement du sol; intensité; effets de site; réponse rapide; Pyrénées

Domaines: Géophysique [physics.geo-ph]; Géophysique [physics.geo-ph]; Milieux et Changements globaux

Didier Bertil, Jordi Roviró, Jose Antonio Jara, Teresa Susagna, Eduard Nus, et al.. ShakeMap implementation for Pyrenees in France-Spain border: regional adaptation and earthquake rapid response process.. 15th World Conference on Earthquake Engineering : 15th WCEE, Sep 2012, Lisbon, Portugal. in press, 9 p. ⟨hal-00691017⟩