1. EES‐17 (Geophysics) Los Alamos National Laboratory Los Alamos NM USA
2. Department of Geological Sciences University of Texas at El Paso El Paso TX USA
3. University of Utah Seismograph Stations University of Utah Salt Lake City UT USA
4. Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography University of California, San Diego La Jolla CA USA