M 5.1 earthquake: North Pacific Ocean (Japan) — March 1, 1991

M 5.1 earthquake: North Pacific Ocean (Japan) — March 1, 1991. Epicenter 461 km SE of Yokohama, depth 43 km, 03:05 Local (1991-02-28 18:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (461 km SE, Japan) — 31.976, 142.355

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