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

Abstract : 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.