M 4.5 earthquake near South Pacific Ocean (Tonga) — 1977-04-23

Magnitude 4.5 earthquake near South Pacific Ocean (378 km W, Tonga), depth 559 km, 21:28 Local (1977-04-23 09:28 UTC). Shaking felt by 0 people. Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (378 km W, Tonga) — -20.947, -178.857

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