1. Geology Department Western Washington University Bellingham Washington USA
2. Department of Geology and Rubenstein School of the Environment and Natural Resources University of Vermont Burlington Vermont USA
3. Department of Earth Science and Engineering Imperial College London London UK
4. Scottish Universities Environmental Research Centre East Kilbride UK
5. U.S. Geological Survey Earthquake Science Center, Department of Earth and Space Sciences University of Washington Seattle Washington USA
6. Geology Department Humboldt State University Arcata California USA