M 4.9 earthquake: South Pacific Ocean (Tonga) — May 31, 1978

M 4.9 earthquake: South Pacific Ocean (Tonga) — May 31, 1978. Epicenter 555 km SW of Nuku'alofa, depth 524 km, 21:03 Local (1978-06-01 09:03 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (555 km SW, Tonga) — -23.599, -179.919

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