TY - RPRT TI - Ground-coupled acoustic airwaves from Mount St. Helens provide constraints on the May 18, 1980 eruption AU - J.B. Johnson AU - S. D. Malone PY - 2007 DO - 10.1016/j.epsl.2007.03.001 UR - https://pubs.usgs.gov/publication/70170802 ID - 70170802 ER -