M 4.6 earthquake: North Pacific Ocean (Japan) — March 31, 1999

M 4.6 earthquake: North Pacific Ocean (Japan) — March 31, 1999. Epicenter 371 km E of Kitami, depth 33 km, 07:04 Local (1999-03-30 21:04 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (371 km E, Japan) — 44.878, 148.337

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