M 6.9 earthquake in Russia (Uglegorsk) — March 15, 1924

M 6.9 earthquake in Russia (Uglegorsk) — March 15, 1924. Epicenter 39 km NE of Uglegorsk, depth 15 km, 19:31 Local (1924-03-15 10:31 UTC). Shaking felt by ~4.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

39 km NE of Uglegorsk (Russia) — 49.223, 142.519

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