M 4.8 earthquake: South Pacific Ocean (Tonga) — March 20, 2026

M 4.8 earthquake: South Pacific Ocean (Tonga) — March 20, 2026. Epicenter 381 km W of Nuku'alofa, depth 499 km, 17:56 Local (2026-03-21 05:56 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (381 km W, Tonga) — -21.8996, -178.8162

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