M 5.4 earthquake: North Pacific Ocean (USA) — March 18, 2003

M 5.4 earthquake: North Pacific Ocean (USA) — March 18, 2003. Epicenter 669 km SW of Atka, depth 10 km, 10:31 Local (2003-03-17 22:31 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (669 km SW, USA) — 49.5336, 177.2368

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