M 4.5 earthquake: South Pacific Ocean (Tonga) — September 25, 1973

M 4.5 earthquake: South Pacific Ocean (Tonga) — September 25, 1973. Epicenter 320 km NW of Nuku'alofa, depth 411 km, 12:05 Local (1973-09-26 00:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (320 km NW, Tonga) — -19.393, -177.661

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