Surface Wave Methods to Explore Shallow Active Faults

A048 Surface wave methods to explore shallow active faults F. NGUYEN 1 S. GARAMBOIS 2 AND D. JONGMANS 2 Summary 1 In active fault survey surface waves are often discarded when using seismic refraction tomography and reflection methods. However surface waves offer many advantages (e.g. high signal to noise ratio and moderate sensitivity on the presence of water) and are being increasingly used. In this paper we propose to use signal processing tools the stacked spectra method and a Green function mapping technique to detect and characterize a step structure using synthetic and field data. The results show that the