M 4.6 earthquake: North Pacific Ocean (USA) — May 17, 1983
M 4.6 earthquake: North Pacific Ocean (USA) — May 17, 1983. Epicenter 261 km W of Eureka, depth 10 km, 18:10 Local (1983-05-18 01:10 UTC). Readings from every reporting agency, affected towns, aftershock sequence.
North Pacific Ocean (261 km W, USA) — 40.862, -127.251
