A magnitude 5.1 earthquake occurred at 22:37:52 (UTC) on 23 May 2021, 63.6 km (39.5 mi) SW of Masachapa, Nicaragua; 74.3 km (46.2 mi) SW of San Rafael del Sur, Nicaragua and 92.2 km (57.3 mi) SW of Diriamba, Nicaragua. Estimates from the United States Geological Survey (USGS) located the epicentre of the event at 11.401°N, 86.944°W, and at a depth of 35.0 km.