M 5.1 earthquake: North Pacific Ocean (Japan) — September 28, 1991

M 5.1 earthquake: North Pacific Ocean (Japan) — September 28, 1991. Epicenter 807 km S of Hamamatsu, depth 33 km, 19:48 Local (1991-09-28 10:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (807 km S, Japan) — 27.926, 140.742

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