M 4.9 earthquake: South China Sea (Olongapo, Philippines) — March 20, 2000

M 4.9 earthquake: South China Sea (Olongapo, Philippines) — March 20, 2000. Epicenter 82 km W of Olongapo, depth 33 km, 16:42 Local (2000-03-20 08:42 UTC). Shaking felt by ~2.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

South China Sea (82 km W of Olongapo, Philippines) — 15.063, 119.558

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