2025-05-28T10:44:32.33Z46.751-112.0831666666679.21manualconfirmedUSGS1.18ml1Origin/20250528152800.130957.23546Magnitude/20250528152800.131011.23547USGS2 km NNW of Helena Valley Northwest, Montanaregion namembcatalogmb90090143contributorID