2026-03-21T11:12:04.833Z29.4276130.726525.517manualconfirmedUSGS5.4mww1Origin/20260321112935.461292.351398Magnitude/20260321112935.461378.3513992026-03-21T11:20:24.375892Z2026-03-21T11:29:37.028308ZRyukyu Islands, Japanregion nameOrigin/20260321112935.461292.351398