M 4.5 earthquake: South Pacific Ocean (Tonga) — October 18, 1997

M 4.5 earthquake: South Pacific Ocean (Tonga) — October 18, 1997. Epicenter 597 km SW of Nuku'alofa, depth 500 km, 12:25 Local (1997-10-18 00:25 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (597 km SW, Tonga) — -23.873, 179.775

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