M 4.7 earthquake: North Atlantic Ocean (Iceland) — April 11, 1977

M 4.7 earthquake: North Atlantic Ocean (Iceland) — April 11, 1977. Epicenter 635 km SW of Keflavík, depth 33 km, 20:27 Local (1977-04-11 22:27 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (635 km SW, Iceland) — 59.559, -30.133

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