M 5.1 Earthquake: Philippine Sea (Zamboanga, Philippines) — March 11, 1999

M 5.1 Earthquake: Philippine Sea (Zamboanga, Philippines) — March 11, 1999. Epicenter 156 km S of Zamboanga, depth 33 km, 10:43 Local (1999-03-11 02:43 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (156 km S of Zamboanga, Philippines) — 5.521, 122.072

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