M 4.6 earthquake: North Atlantic Ocean (Portugal) — July 17, 1988

M 4.6 earthquake: North Atlantic Ocean (Portugal) — July 17, 1988. Epicenter 357 km N of Horta, depth 10 km, 19:19 Local (1988-07-17 21:19 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (357 km N, Portugal) — 41.707, -29.285

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