M 4.9 earthquake: Aleutian Islands (Unalaska, USA) — April 15, 1991

M 4.9 earthquake: Aleutian Islands (Unalaska, USA) — April 15, 1991. Epicenter 142 km SE of Unalaska, depth 33 km, 05:29 Local (1991-04-15 13:29 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (142 km SE of Unalaska, USA) — 53.334, -164.581

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