PILARCZYK, Jessica E., Earth and Environmental Science, University of Pennsylvania, 240 S. 33rd Street, Philadelphia, PA 19104, jpilar@sas.upenn.edu, HORTON, B.P., Department of Earth and Environmental Science, University of Pennsylvania, Hayden Hall, 240 South 33rd Street, Philadelphia, PA 19104, WITTER, Robert C., U S Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, VANE, Christopher H., British Geological Survey, Environmental Science Centre, Keyworth, United Kingdom, CHAGUE-GOFF, Catherine, Australian Tsunami Research Centre, University of New South Wales, Sydney, 2052, Australia, and GOFF, James R., Australian Tsunami Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, 2052, Australia