M 4.6 earthquake: North Pacific Ocean (Japan) — November 4, 1990

M 4.6 earthquake: North Pacific Ocean (Japan) — November 4, 1990. Epicenter 490 km SE of Hamamatsu, depth 104 km, 20:13 Local (1990-11-04 11:13 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (490 km SE, Japan) — 30.729, 139.963

EarthquakeLive.org