M 4.8 earthquake: Philippine Sea (Naga, Philippines) — September 22, 1990

M 4.8 earthquake: Philippine Sea (Naga, Philippines) — September 22, 1990. Epicenter 78 km SE of Naga, depth 33 km, 04:13 Local (1990-09-21 20:13 UTC). Shaking felt by ~2.9M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (78 km SE of Naga, Philippines) — 13.291, 123.816

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