M 4.6 earthquake in Japan (Utsunomiya) — February 11, 1987

M 4.6 earthquake in Japan (Utsunomiya) — February 11, 1987. Epicenter 48 km S of Utsunomiya, depth 73 km, 02:51 Local (1987-02-10 17:51 UTC). Shaking felt by ~28.1M people. Readings from every reporting agency, affected towns, aftershock sequence.

48 km S of Utsunomiya (Japan) — 36.121, 139.788

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