M 4.7 earthquake: North Pacific Ocean (Japan) — September 13, 1984

M 4.7 earthquake: North Pacific Ocean (Japan) — September 13, 1984. Epicenter 553 km SE of Yokohama, depth 53 km, 06:27 Local (1984-09-12 21:27 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (553 km SE, Japan) — 30.887, 142.026

EarthquakeLive.org