2025-12-07T00:31:41.381Z31.5969132.120433.194manualconfirmedUSGS4.5mb1Origin/20251207004830.191285.25302209Magnitude/20251207004830.192274.253022102025-12-07T00:37:48.35282Z2025-12-07T00:48:30.283474ZSoutheast of Shikoku, Japanregion nameOrigin/20251207004830.191285.25302209