M 4.5 earthquake: North Pacific Ocean (Japan) — April 23, 1989

M 4.5 earthquake: North Pacific Ocean (Japan) — April 23, 1989. Epicenter 659 km SE of Shizuoka, depth 33 km, 04:50 Local (1989-04-22 19:50 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (659 km SE, Japan) — 29.618, 141.357

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