M 4.5 earthquake: Philippine Sea (Naga, Philippines) — March 11, 1981

M 4.5 earthquake: Philippine Sea (Naga, Philippines) — March 11, 1981. Epicenter 161 km N of Naga, depth 33 km, 11:26 Local (1981-03-11 03:26 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (161 km N of Naga, Philippines) — 15.012, 123.58

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