M 4.7 earthquake: Philippine Sea (Surigao, Philippines) — January 31, 1981

M 4.7 earthquake: Philippine Sea (Surigao, Philippines) — January 31, 1981. Epicenter 135 km NE of Surigao, depth 33 km, 07:31 Local (1981-01-30 23:31 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (135 km NE of Surigao, Philippines) — 10.707, 126.296

EarthquakeLive.org