TY - RPRT TI - Seismic and acoustic recordings of an unusually large rockfall at Mount St. Helens, Washington AU - Seth C. Moran AU - R.S. Matoza AU - M.A. Garces AU - M.A.H. Hedlin AU - D. Bowers AU - William E. Scott AU - David R. Sherrod AU - James W. Vallance PY - 2008 DO - 10.1029/2008gl035176 UR - https://pubs.usgs.gov/publication/70030384 ID - 70030384 ER -