M 4.8 earthquake: North Pacific Ocean (Japan) — May 20, 1986

M 4.8 earthquake: North Pacific Ocean (Japan) — May 20, 1986. Epicenter 528 km SE of Wakayama, depth 523 km, 13:10 Local (1986-05-20 04:10 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (528 km SE, Japan) — 29.854, 137.352

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