M 4.9 earthquake: North Pacific Ocean (Japan) — September 21, 1979

M 4.9 earthquake: North Pacific Ocean (Japan) — September 21, 1979. Epicenter 370 km E of Kushiro, depth 33 km, 06:08 Local (1979-09-20 20:08 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (370 km E, Japan) — 43.739, 148.833

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