M 4.6 Earthquake: Philippine Sea (Zamboanga, Philippines) — March 7, 1999

M 4.6 Earthquake: Philippine Sea (Zamboanga, Philippines) — March 7, 1999. Epicenter 186 km S of Zamboanga, depth 33 km, 16:46 Local (1999-03-07 08:46 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (186 km S of Zamboanga, Philippines) — 5.259, 122.276

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