Green earthquake (Magnitude 4.9M, Depth:51.723km) in Mariana Islands 09/06/2026 16:48 UTC, No people affected in 100km.. On 6/9/2026 4:48:51 PM, an earthquake occurred in Mariana Islands potentially affecting No people affected in 100km. The earthquake had Magnitude 4.9M, Depth:51.723km.