M 4.8 earthquake in the USA (Carson City) — February 21, 1977

M 4.8 earthquake in the USA (Carson City) — February 21, 1977. Epicenter 86 km SE of Carson City, depth 3 km, 22:24 Local (1977-02-22 06:24 UTC). Shaking felt by ~425K people. Readings from every reporting agency, affected towns, aftershock sequence.

86 km SE of Carson City (USA) — 38.4903333, -119.2806667

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