M 5.5 earthquake: North Pacific Ocean (Japan) — September 13, 1987

M 5.5 earthquake: North Pacific Ocean (Japan) — September 13, 1987. Epicenter 297 km SE of Hachinohe, depth 34 km, 23:07 Local (1987-09-13 14:07 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (297 km SE, Japan) — 39.429, 144.732

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