M 5.4 Earthquake: South Pacific Ocean (Tonga) — October 15, 1975

M 5.4 Earthquake: South Pacific Ocean (Tonga) — October 15, 1975. Epicenter 403 km S of Nuku'alofa, depth 33 km, 15:37 Local (1975-10-16 03:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (403 km S, Tonga) — -24.75, -175.591

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