M 4.7 earthquake: Bering Sea (Nikolski, USA) — February 21, 1991

M 4.7 earthquake: Bering Sea (Nikolski, USA) — February 21, 1991. Epicenter 66 km SE of Nikolski, depth 33 km, 10:27 Local (1991-02-21 19:27 UTC). Shaking felt by ~18 people. Readings from every reporting agency, affected towns, aftershock sequence.

Bering Sea (66 km SE of Nikolski, USA) — 52.566, -168.113

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