M 4.8 earthquake: North Pacific Ocean (USA) — March 12, 1983

M 4.8 earthquake: North Pacific Ocean (USA) — March 12, 1983. Epicenter 498 km W of Atka, depth 33 km, 06:17 Local (1983-03-11 18:17 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (498 km W, USA) — 50.853, 178.929

EarthquakeLive.org