M 5.6 earthquake: North Atlantic Ocean (Antigua and Barbuda) — March 11, 1977

M 5.6 earthquake: North Atlantic Ocean (Antigua and Barbuda) — March 11, 1977. Epicenter 1885 km NE of Saint John's, depth 33 km, 23:57 Local (1977-03-12 02:57 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1885 km NE, Antigua and Barbuda) — 23.743, -45.174

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