M4.5 earthquake strikes northeast of Martinique, minor shaking reported

A magnitude 4.5 earthquake occurred 54 km ENE of Sainte-Marie, Martinique, at 02:44 UTC on 2026-09-20, at a depth of 46 km. USGS reports light shaking (DYFI II), with no immediate damage or tsunami threat indicated. The event is routine for the Lesser Antilles seismic zone, but monitoring continues for aftershocks.