01358oam 2200397Ia 450 991069683420332120080728090957.0(CKB)5470000002382542(OCoLC)77481782(EXLCZ)99547000000238254220061227d2006 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierThe National Volcano Early Warning System (NVEWS)[electronic resource] /[John Ewert ... and others][Reston, Va.] :U.S. Dept. of the Interior, U.S. Geological Survey,[2006]2 unnumbered pages digital, PDF fileFact sheet ;2006-3142Title from PDF title screen (viewed on July 25, 2008)."December 2006."National Volcano Early Warning System Volcanic hazard analysisUnited StatesNatural disaster warning systemsUnited StatesVolcanic hazard analysisNatural disaster warning systemsEwert John W1381958Geological Survey (U.S.)GISGISGPOBOOK9910696834203321The National Volcano Early Warning System (NVEWS)3464719UNINA