A magnitude 5.4 earthquake occurred at 15:57:20 (UTC) on 30 October 2023, 4.4 km (2.7 mi) ESE of Hope Bay, Portland, Jamaica; 16.7 km (10.4 mi) ESE of Port Antonio, Portland, Jamaica and 26.6 km (16.5 mi) SW of Constant Spring, St. Andrew, Jamaica. Initial estimates from the United States Geological Survey (USGS) located the epicentre of the event at 18.190°N, 76.607°W, and at a depth of 10 km (6.21 mi).