M 4.6 earthquake: South Pacific Ocean (Tonga) — November 21, 1977

M 4.6 earthquake: South Pacific Ocean (Tonga) — November 21, 1977. Epicenter 295 km NW of Nuku'alofa, depth 608 km, 00:48 Local (1977-11-20 11:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (295 km NW, Tonga) — -20.01, -177.785

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