1. Earthquake Science Center, U.S. Geological Survey, 345 Middlefield Road, MS 977, Menlo Park, California 94025, brocher@usgs.gov
2. U.S. Geological Survey, Branch of Earthquake and Landslide Hazards, Mail Stop 966, Box 25046, Denver Federal Center, Denver, Colorado 80225
3. Retired.
4. Deceased (14 September 2006).
5. Deceased (17 June 2005).
6. Deceased (15 July 2006).