M 4.9 earthquake: North Pacific Ocean (Japan) — March 7, 1973

M 4.9 earthquake: North Pacific Ocean (Japan) — March 7, 1973. Epicenter 802 km S of Hamamatsu, depth 465 km, 12:18 Local (1973-03-07 03:18 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (802 km S, Japan) — 27.742, 139.861

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