M 5.5 earthquake: North Atlantic Ocean (Portugal) — December 30, 1970
M 5.5 earthquake: North Atlantic Ocean (Portugal) — December 30, 1970. Epicenter 524 km N of Funchal, depth 23 km, 19:57 Local (1970-12-30 20:57 UTC). Readings from every reporting agency, affected towns, aftershock sequence.
North Atlantic Ocean (524 km N, Portugal) — 37.091, -14.961
