M 5.1 earthquake: South Pacific Ocean (Tonga) — July 9, 1973

M 5.1 earthquake: South Pacific Ocean (Tonga) — July 9, 1973. Epicenter 394 km SW of Nuku'alofa, depth 118 km, 16:02 Local (1973-07-10 04:02 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (394 km SW, Tonga) — -24.074, -177.371

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