M 4.6 earthquake: Aleutian Islands (Atka, USA) — March 21, 1987

M 4.6 earthquake: Aleutian Islands (Atka, USA) — March 21, 1987. Epicenter 76 km SE of Atka, depth 33 km, 16:57 Local (1987-03-22 02:57 UTC). Shaking felt by ~61 people. Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (76 km SE of Atka, USA) — 51.668, -173.504

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