M 4.7 earthquake: North Pacific Ocean (Japan) — February 21, 1978

M 4.7 earthquake: North Pacific Ocean (Japan) — February 21, 1978. Epicenter 295 km SE of Kawasaki, depth 54 km, 00:45 Local (1978-02-20 15:45 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (295 km SE, Japan) — 33.761, 142.113

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