M 4.7 earthquake: North Atlantic Ocean (Brazil) — June 4, 1991

M 4.7 earthquake: North Atlantic Ocean (Brazil) — June 4, 1991. Epicenter 1230 km NE of Viseu, depth 10 km, 20:59 Local (1991-06-04 23:59 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1230 km NE, Brazil) — 8.513, -40.814

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