M 4.7 earthquake: North Atlantic Ocean (Antigua and Barbuda) — March 30, 1977

M 4.7 earthquake: North Atlantic Ocean (Antigua and Barbuda) — March 30, 1977. Epicenter 1888 km NE of Saint John's, depth 33 km, 18:24 Local (1977-03-30 21:24 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1888 km NE, Antigua and Barbuda) — 23.465, -45.041

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