M 4.7 earthquake near Mar das Filipinas (Guam) — 1981-04-18

Magnitude 4.7 earthquake near Mar das Filipinas (142 km a oeste de Agana, Guam), depth 112 km, 18:21 Local (1981-04-18 08:21 UTC). Shaking felt by 0 people. Readings from every reporting agency, affected towns, aftershock sequence.

Mar das Filipinas (142 km a oeste de Agana, Guam) — 13.051, 143.51

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