M 4.6 earthquake: South Pacific Ocean (Tonga) — March 27, 1978

M 4.6 earthquake: South Pacific Ocean (Tonga) — March 27, 1978. Epicenter 263 km W of Nuku'alofa, depth 487 km, 19:10 Local (1978-03-27 06:10 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (263 km W, Tonga) — -20.316, -177.593

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