2025-09-03T17:47:00.84Z45.3713333333333-111.4061666666679.08manualconfirmedUSGS0.22ml1Origin/20250904142546.359536.458056Magnitude/20250904142546.359585.458057USGS10 km NNW of Big Sky, Montanaregion namembcatalogmb90110288contributorID