2026-06-15T02:05:47.48Z46.8185-111.583333333335.41manualconfirmedUSGS1.53ml1Origin/20260615154710.691007.36902Magnitude/20260615154710.691065.36903USGS31 km ENE of Helena Valley Northeast, Montanaregion namembcatalogmb90145223contributorID