M 4.6 earthquake: North Pacific Ocean (Japan) — February 17, 1984

M 4.6 earthquake: North Pacific Ocean (Japan) — February 17, 1984. Epicenter 939 km S of Hamamatsu, depth 513 km, 11:21 Local (1984-02-17 02:21 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (939 km S, Japan) — 26.581, 140.346

EarthquakeLive.org