M 5.3 earthquake: Bering Sea (Nikolski, USA) — October 21, 1977

M 5.3 earthquake: Bering Sea (Nikolski, USA) — October 21, 1977. Epicenter 186 km W of Nikolski, depth 67 km, 09:09 Local (1977-10-21 19:09 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Bering Sea (186 km W of Nikolski, USA) — 52.347, -171.44

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