2026-08-22T18:44:57.0000Z28.1901128.614590.805manualconfirmedUSGS4.4mb1Origin/20260822194107.516647.294903Magnitude/20260822194107.51672.2949042026-08-22T19:41:07.538097ZRyukyu Islands, Japanregion nameOrigin/20260822194107.516647.294903