1. Laboratory of Hydraulics, Hydrology and Glaciology (VAW); ETH Zürich; Zürich Switzerland
2. Swiss Seismological Service (SED); ETH Zürich; Zürich Switzerland
3. Now at Institut des Sciences de la Terre (ISTerre); Université Joseph Fourier; Grenoble France
4. Institute of Geophysics; ETH Zürich; Zürich Switzerland
5. Now at Soil and Terrestrial Environmental Physics; ETH Zürich; Zürich Switzerland
6. Now at German Research Centre for Geosciences (GFZ); Potsdam Germany