M 4.9 earthquake: North Atlantic Ocean (Antigua and Barbuda) — June 28, 1977

M 4.9 earthquake: North Atlantic Ocean (Antigua and Barbuda) — June 28, 1977. Epicenter 1851 km E of Saint John's, depth 33 km, 16:35 Local (1977-06-28 19:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1851 km E, Antigua and Barbuda) — 22.566, -45.112

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