2025-07-31T01:16:47.751Z50.2115158.046210manualconfirmedUSGS4.2mb1Origin/20250731034951.527018.100531Magnitude/20250731034951.527071.100532USGS145 km ESE of Severo-Kuril’sk, Russiaregion nameuscatalogus6000qwsrcontributorID