Sokar Volcano was a volcano that exhibited activity on Zerist, which is a moon orbiting the gas giant Obri within the Tython system. At the volcano's foundation sat the city of Kainnan, built there to harness the heat and power emitted by Sokar. Typically, Zerist's governing body was capable of forecasting Sokar's eruptions with enough advance notice to move Kainnan's inhabitants away from the area during these periods of volcanic action.