M 5.3 earthquake: North Pacific Ocean (Philippines) — March 13, 1977

M 5.3 earthquake: North Pacific Ocean (Philippines) — March 13, 1977. Epicenter 284 km SE of General Santos, depth 87 km, 23:20 Local (1977-03-13 15:20 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (284 km SE, Philippines) — 4.938, 127.457

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