M 4.9 earthquake near 北太平洋 (日本) — 1991-08-20

Magnitude 4.9 earthquake near 北太平洋（437公里，日本）, depth 38 km, 01:12 Local (1991-08-20 15:12 UTC). Shaking felt by 0 people. Readings from every reporting agency, affected towns, aftershock sequence.

北太平洋（437公里，日本） — 44.249, 149.515

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