M 5.9 Earthquake in the USA (Unalaska) — April 20, 1972

M 5.9 Earthquake in the USA (Unalaska) — April 20, 1972. Epicenter 29 km NW of Unalaska, depth 106 km, 14:28 Local (1972-04-21 01:28 UTC). Shaking felt by ~73K people. Readings from every reporting agency, affected towns, aftershock sequence.

29 km NW of Unalaska (USA) — 53.987, -166.919

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