2025-07-31T00:47:10.131921Z54.27206802368164-130.327972412109380manualconfirmedCASS1.579582426080565ML1Origin/20250731201606.896922.109550Magnitude/20250731201606.896971.109551quarry blastCASSSoutheastern Alaskaregion namecass2025ovoscontributorID