M 4.8 earthquake near 北太平洋 (Northern Mariana Islands) — 1981-07-20

Magnitude 4.8 earthquake near 北太平洋（395公里，Northern Mariana Islands）, depth 33 km, 09:15 Local (1981-07-20 23:15 UTC). Shaking felt by 0 people. Readings from every reporting agency, affected towns, aftershock sequence.

北太平洋（395公里，Northern Mariana Islands） — 18.618, 146.799

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