Green earthquake (Magnitude 4.8M, Depth:79.985km) in South Sandwich Islands Region 28/05/2026 15:07 UTC, No people affected in 100km.. On 5/28/2026 3:07:48 PM, an earthquake occurred in South Sandwich Islands Region potentially affecting No people affected in 100km. The earthquake had Magnitude 4.8M, Depth:79.985km.