M 4.6 earthquake in the USA (Yakima) — May 28, 1981

M 4.6 earthquake in the USA (Yakima) — May 28, 1981. Epicenter 69 km W of Yakima, depth 2 km, 01:56 Local (1981-05-28 08:56 UTC). Shaking felt by ~614K people. Readings from every reporting agency, affected towns, aftershock sequence.

69 km W of Yakima (USA) — 46.53, -121.3985