M 4.6 earthquake: North Pacific Ocean (Japan) — September 13, 1984

M 4.6 earthquake: North Pacific Ocean (Japan) — September 13, 1984. Epicenter 555 km SE of Yokohama, depth 33 km, 21:33 Local (1984-09-13 12:33 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (555 km SE, Japan) — 30.833, 141.916

EarthquakeLive.org