M 5.9 earthquake near 北太平洋 (日本) — 1983-08-20

Magnitude 5.9 earthquake near 北太平洋（850公里，日本）, depth 41 km, 22:08 Local (1983-08-20 13:08 UTC). Shaking felt by 0 people. Readings from every reporting agency, affected towns, aftershock sequence.

北太平洋（850公里，日本） — 27.904, 141.793

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