M 6.1 earthquake: North Pacific Ocean (Japan) — February 15, 1961

M 6.1 earthquake: North Pacific Ocean (Japan) — February 15, 1961. Epicenter 275 km E of Kushiro, depth 34 km, 19:45 Local (1961-02-15 10:45 UTC). Shaking felt by ~1.9M people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (275 km E, Japan) — 43.694, 147.628

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