M 4.9 earthquake: North Pacific Ocean (Philippines) — September 23, 1993

M 4.9 earthquake: North Pacific Ocean (Philippines) — September 23, 1993. Epicenter 331 km S of Zamboanga, depth 556 km, 00:15 Local (1993-09-22 16:15 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (331 km S, Philippines) — 4.06, 122.892

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