M 4.9 earthquake: North Pacific Ocean (Japan) — September 6, 1984

M 4.9 earthquake: North Pacific Ocean (Japan) — September 6, 1984. Epicenter 555 km SE of Yokohama, depth 33 km, 08:55 Local (1984-09-05 23:55 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (555 km SE, Japan) — 30.818, 141.88

EarthquakeLive.org