M 5.5 earthquake near Aleutian Islands (USA) — 1971-09-23

Magnitude 5.5 earthquake near Aleutian Islands (117 km E of Unalaska, USA), depth 45 km, 03:31 Local (1971-09-23 13:31 UTC). Shaking felt by ~73K people. Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (117 km E of Unalaska, USA) — 53.699, -164.778

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