M 5.4 earthquake: North Atlantic Ocean (Greenland) — February 18, 1983

M 5.4 earthquake: North Atlantic Ocean (Greenland) — February 18, 1983. Epicenter 723 km SE of Timmiarmiut, depth 10 km, 15:24 Local (1983-02-18 17:24 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (723 km SE, Greenland) — 58.527, -31.764

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