M 4.5 earthquake: North Pacific Ocean (USA) — March 6, 1974

M 4.5 earthquake: North Pacific Ocean (USA) — March 6, 1974. Epicenter 288 km W of Eureka, depth 33 km, 20:25 Local (1974-03-07 03:25 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (288 km W, USA) — 40.807, -127.572

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