M 6.4 earthquake: Bering Sea (Atka, USA) — March 21, 1987

M 6.4 earthquake: Bering Sea (Atka, USA) — March 21, 1987. Epicenter 229 km W of Atka, depth 93 km, 00:41 Local (1987-03-21 10:41 UTC). Shaking felt by ~61 people. Readings from every reporting agency, affected towns, aftershock sequence.

Bering Sea (229 km W of Atka, USA) — 52.056, -177.547

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