Green earthquake (Magnitude 4.6M, Depth:98.847km) in South Sandwich Islands Region 27/05/2026 21:37 UTC, No people affected in 100km.. On 5/27/2026 9:37:39 PM, an earthquake occurred in South Sandwich Islands Region potentially affecting No people affected in 100km. The earthquake had Magnitude 4.6M, Depth:98.847km.