M 5.0 earthquake: South Pacific Ocean (Tonga) — February 21, 1978

M 5.0 earthquake: South Pacific Ocean (Tonga) — February 21, 1978. Epicenter 278 km W of Neiafu, depth 33 km, 09:19 Local (1978-02-20 20:19 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (278 km W, Tonga) — -17.71, -176.426

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