M 5.4 earthquake: South Atlantic Ocean (Liberia) — December 20, 1983

M 5.4 earthquake: South Atlantic Ocean (Liberia) — December 20, 1983. Epicenter 2416 km S of Harper, depth 10 km, 05:53 Local (1983-12-20 06:53 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (2416 km S, Liberia) — -16.373, -14.231

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