M 4.7 earthquake: North Pacific Ocean (Japan) — April 28, 1994

M 4.7 earthquake: North Pacific Ocean (Japan) — April 28, 1994. Epicenter 493 km S of Hamamatsu, depth 438 km, 18:30 Local (1994-04-28 09:30 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (493 km S, Japan) — 30.347, 138.609

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