M 4.9 earthquake: North Pacific Ocean (Japan) — August 31, 1973

M 4.9 earthquake: North Pacific Ocean (Japan) — August 31, 1973. Epicenter 379 km SE of Yokohama, depth 39 km, 06:13 Local (1973-08-30 21:13 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (379 km SE, Japan) — 32.477, 141.652

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