M 4.8 earthquake: Philippine Sea (Naga, Philippines) — July 17, 1981

M 4.8 earthquake: Philippine Sea (Naga, Philippines) — July 17, 1981. Epicenter 169 km SW of Naga, depth 33 km, 21:44 Local (1981-07-17 13:44 UTC). Shaking felt by ~1.1M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (169 km SW of Naga, Philippines) — 12.528, 122.092

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