2025-06-18T19:02:03.72Z46.0078333333333-112.4555-2manualconfirmedUSGS1.55ml1Origin/20250618192523.111979.199408Magnitude/20250618192523.112029.199409USGS6 km E of Butte, Montanaregion namembcatalogmb90097308contributorID