M 5.4 earthquake: South Atlantic Ocean (Antarctica) — April 18, 1990

M 5.4 earthquake: South Atlantic Ocean (Antarctica) — April 18, 1990. Epicenter 1442 km N of Neumayer Station III, depth 10 km, 09:33 Local (1990-04-18 10:33 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (1442 km N, Antarctica) — -57.968, -10.316

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