M 4.5 earthquake: South China Sea (Olongapo, Philippines) — February 15, 2018

M 4.5 earthquake: South China Sea (Olongapo, Philippines) — February 15, 2018. Epicenter 105 km NW of Olongapo, depth 20 km, 23:43 Local (2018-02-15 15:43 UTC). Shaking felt by ~1.5M people. Readings from every reporting agency, affected towns, aftershock sequence.

South China Sea (105 km NW of Olongapo, Philippines) — 15.4399, 119.5322

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