What caused the earthquake in the Indian Ocean 2004?

The 2004 Indian ocean earthquake was caused by the subduction of the Indian Plate beneath the Burma Plate along the Sunda Trench. This tectonic activity released a massive amount of energy, resulting in a magnitude 9.1-9.3 earthquake on December 26, 2004. The quake generated a series of devastating tsunamis, impacting coastal regions across multiple countries and leading to significant loss of life and widespread destruction.