Green earthquake (Magnitude 4.8M, Depth:21.841km) in South Sandwich Islands Region 16/06/2026 17:13 UTC, No people affected in 100km.. On 6/16/2026 5:13:10 PM, an earthquake occurred in South Sandwich Islands Region potentially affecting No people affected in 100km. The earthquake had Magnitude 4.8M, Depth:21.841km.