M 5.0 earthquake: North Pacific Ocean (USA) — July 4, 1977

M 5.0 earthquake: North Pacific Ocean (USA) — July 4, 1977. Epicenter 272 km W of Eureka, depth 15 km, 15:05 Local (1977-07-04 22:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (272 km W, USA) — 40.248, -127.286

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