M 4.6 earthquake: South Pacific Ocean (Tonga) — May 23, 1977

M 4.6 earthquake: South Pacific Ocean (Tonga) — May 23, 1977. Epicenter 332 km NW of Nuku'alofa, depth 600 km, 23:57 Local (1977-05-23 11:57 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (332 km NW, Tonga) — -19.885, -178.114

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