M 4.7 earthquake: North Pacific Ocean (Philippines) — January 20, 1992

M 4.7 earthquake: North Pacific Ocean (Philippines) — January 20, 1992. Epicenter 305 km S of Zamboanga, depth 578 km, 21:19 Local (1992-01-20 13:19 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (305 km S, Philippines) — 4.331, 122.993

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