M 4.9 earthquake: North Pacific Ocean (Japan) — September 19, 1988

M 4.9 earthquake: North Pacific Ocean (Japan) — September 19, 1988. Epicenter 464 km SE of Yokohama, depth 33 km, 09:18 Local (1988-09-19 00:18 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (464 km SE, Japan) — 31.602, 141.605

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