M 4.9 earthquake: North Atlantic Ocean (Antigua and Barbuda) — March 30, 1977

M 4.9 earthquake: North Atlantic Ocean (Antigua and Barbuda) — March 30, 1977. Epicenter 1884 km NE of Saint John's, depth 33 km, 18:36 Local (1977-03-30 21:36 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1884 km NE, Antigua and Barbuda) — 23.359, -45.047

EarthquakeLive.org