M 5.5 earthquake: North Pacific Ocean (Japan) — December 22, 1977

M 5.5 earthquake: North Pacific Ocean (Japan) — December 22, 1977. Epicenter 347 km SW of Kagoshima, depth 33 km, 13:45 Local (1977-12-22 04:45 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (347 km SW, Japan) — 29.553, 127.812

EarthquakeLive.org