On December 26, 2004, an earthquake estimated at between magnitude 9.0 and 9.3 resulted from rupture of over 1000 km (620 mi) of the Andaman Subduction Zone. The rupture also generated a tsunami that caused damage throughout the Indian Ocean, killing some 250,000 people and causing billions of dollars in damage. The tsunami was the most devastating in more than 40 year and one of the largest such events on record.