M 4.9 earthquake: North Pacific Ocean (Japan) — August 23, 1989

M 4.9 earthquake: North Pacific Ocean (Japan) — August 23, 1989. Epicenter 258 km NE of Naha, depth 33 km, 16:07 Local (1989-08-23 07:07 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (258 km NE, Japan) — 27.394, 129.907

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