M 4.9 earthquake: North Pacific Ocean (Japan) — August 4, 1990

M 4.9 earthquake: North Pacific Ocean (Japan) — August 4, 1990. Epicenter 736 km S of Yokohama, depth 42 km, 00:43 Local (1990-08-03 15:43 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (736 km S, Japan) — 29.207, 142.277

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