2026-04-30T18:37:20.53Z45.235833333333-112.30633333333-2manualconfirmedUSGS0.73ml1Origin/20260501152039.939405.48867Magnitude/20260501152039.939466.48868USGS18 km WSW of Alder, Montanaregion namembcatalogmb90135143contributorID