M 4.7 earthquake near Mar de Filipinas (Northern Mariana Islands) — 1981-08-17

Magnitude 4.7 earthquake near Mar de Filipinas (807 km al N de Capitol Hill, Northern Mariana Islands), depth 171 km, 07:12 Local (1981-08-17 21:12 UTC). Shaking felt by 0 people. Readings from every reporting agency, affected towns, aftershock sequence.

Mar de Filipinas (807 km al N de Capitol Hill, Northern Mariana Islands) — 22.159, 143.542

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