Green earthquake (Magnitude 4.6M, Depth:10km) in Southeast Of Ryukyu Islands 30/06/2026 12:39 UTC, No people affected in 100km.. On 6/30/2026 12:39:56 PM, an earthquake occurred in Southeast Of Ryukyu Islands potentially affecting No people affected in 100km. The earthquake had Magnitude 4.6M, Depth:10km.