The 2004 tsunami in Indonesia was caused by a 9.1 magnitude earthquake that struck the Indian Ocean just off the west coast of Sumatra. The quake, which occurred on December 26, 2004, was the second largest earthquake ever recorded. The resulting tsunami was one of the deadliest in history, killing more than 230,000 people in 14 countries.
The earthquake was caused by the collision of the Indo-Australian and Eurasian plates. The Indo-Australian plate is moving northward and pushing under the …