M 5.3 earthquake: North Pacific Ocean (Japan) — April 20, 1988

M 5.3 earthquake: North Pacific Ocean (Japan) — April 20, 1988. Epicenter 305 km NE of Naha, depth 32 km, 19:27 Local (1988-04-20 10:27 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (305 km NE, Japan) — 28.078, 129.93

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