M 6.1 earthquake near South Atlantic Ocean (South Georgia and the Islands) — 1977-08-04
Magnitude 6.1 earthquake near South Atlantic Ocean (586 km SE, South Georgia and the Islands), depth 112 km, 23:11 Local (1977-08-04 01:11 UTC). Shaking felt by 0 people. Readings from every reporting agency, affected towns, aftershock sequence.
South Atlantic Ocean (586 km SE, South Georgia and the Islands) — -56.013, -27.788
