2026-03-20T21:19:21.348Z28.3965129.34359.694manualconfirmedUSGS4.6mb1Origin/20260321010919.915765.344965Magnitude/20260321010919.915837.3449662026-03-20T21:28:14.826885Z2026-03-21T01:09:19.9266ZRyukyu Islands, Japanregion nameOrigin/20260321010919.915765.344965