M 5.5 earthquake: South Pacific Ocean (Vanuatu) — December 21, 1979

M 5.5 earthquake: South Pacific Ocean (Vanuatu) — December 21, 1979. Epicenter 325 km S of Port Vila, depth 33 km, 00:11 Local (1979-12-20 13:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (325 km S, Vanuatu) — -20.529, 169.225

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