Green earthquake (Magnitude 5.1M, Depth:59.553km) in South Sandwich Islands Region 20/06/2026 04:44 UTC, No people affected in 100km.. On 6/20/2026 4:44:08 AM, an earthquake occurred in South Sandwich Islands Region potentially affecting No people affected in 100km. The earthquake had Magnitude 5.1M, Depth:59.553km.