1. School of Earth and Space Exploration, Arizona State University, Tempe Campus, P.O. Box 876004, Tempe, Arizona 85287‐6004, barrett.salisbury@alaska.gov
2. Now at Alaska Department of Natural Resources, Division of Geological and Geophysical Surveys, 3354 College Road, Fairbanks, Alaska 99709.
3. Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, P.O. Box 951567, Los Angeles, California 90095‐1567
4. Department of Geological Sciences, San Diego State University, 5500 Campanile Drive, San Diego, California 92182‐1020
5. Department of Geological Sciences (MH‐254), California State University, Fullerton, 800 N State College Boulevard, Fullerton, California 92831
6. Program in Public Health, University of California, Irvine, 653 E Peltason Drive, AIRB 2085, Mail Code 3957, Irvine, California 92697‐3957