M 4.7 earthquake in Japan (Nagano) — February 6, 1981

M 4.7 earthquake in Japan (Nagano) — February 6, 1981. Epicenter 72 km NE of Nagano, depth 41 km, 23:34 Local (1981-02-06 14:34 UTC). Shaking felt by ~2.6M people. Readings from every reporting agency, affected towns, aftershock sequence.

72 km NE of Nagano (Japan) — 37.21, 138.568

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