Whose epithet is god of the earthquake?

The epithet "God of the Earthquake" refers to Poseidon, the ancient Greek god of the sea, earthquakes, and horses. He was one of the twelve Olympian deities and was often associated with the destructive power of earthquakes, as well as being a protector of sailors and the sea. Poseidon's influence extended beyond just water; he was also revered for his control over the earth's tremors.