M 4.8 earthquake: North Pacific Ocean (Japan) — April 4, 1991

M 4.8 earthquake: North Pacific Ocean (Japan) — April 4, 1991. Epicenter 293 km SE of Yokohama, depth 33 km, 05:27 Local (1991-04-03 20:27 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (293 km SE, Japan) — 33.693, 142.001

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