Orca Seamount is a submarine volcano near King George Island in Antarctica, in the Bransfield Strait.

[2] The seamount was first named by Professor O. González-Ferrán of Chile in 1987, after the orca (killer whale) often sighted in these waters.

[8] The area presents geodynamic extension conditions as a consequence of a complex interaction of the Scotia, Antarctic and ancient Phoenix tectonic plates.

The swarm was located off King George Island, just a few kilometers from the Orca Seamount, which was thought to be extinct.

Some studies indicate that the earthquakes were produced by magmatic intrusion, although there is no precise evidence that the volcano has erupted due to low instrumentation in the area.