M 4.5 earthquake: South Pacific Ocean (Tonga) — October 22, 1975

M 4.5 earthquake: South Pacific Ocean (Tonga) — October 22, 1975. Epicenter 287 km W of Neiafu, depth 141 km, 04:31 Local (1975-10-21 15:31 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (287 km W, Tonga) — -18.164, -176.657

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