1. U.S. Geological Survey, Albuquerque Seismological Laboratory, P.O. Box 82010, Albuquerque, New Mexico 87198‐2010 U.S.A., reanthony@usgs.gov, aringler@usgs.gov, dwilson@usgs.gov
2. U.S. Geological Survey, Earthquake Science Center, 1711 Illinois Street, Golden, Colorado 80401 U.S.A., ewolin@usgs.gov