Discovery of lower-crustal earthquakes down to -30 km depth near the Askja volcano in North IcelandSoosalu, Heidi Elisabet; White, Robert S.; Knox, Clare; Jakobsdottir, Steinunn S.; Einarsson, PallThe 38th Nordic Seismology Seminar : June 13-15, 2007 : Helsinki, Finland : abstracts2007 / [2] p