M 5.1 earthquake: North Pacific Ocean (Japan) — March 15, 1971

M 5.1 earthquake: North Pacific Ocean (Japan) — March 15, 1971. Epicenter 510 km SE of Yokohama, depth 35 km, 23:12 Local (1971-03-15 14:12 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (510 km SE, Japan) — 31.233, 141.82

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