West Andaman Fault is a major oceanic strike-slip fault . It lies Indian plate and Andaman microplate in the Andaman Sea . Different segments of the fault ruptured in both foreshocks and aftershocks surrounding the 2004 Indian Ocean earthquake and tsunami event . The northern end is thought to connect to the Sagaing Fault and the southern end to the Great Sumatran fault . The two magitude 8 events in 2004 and 2005 , are located on either side of West Andaman Fault indicate that fault played a critical role in controlling the rupture pattern of both the 2004 and 2005 earthquakes
2004 Indian Ocean earthquake and tsunami
2004 Indian Ocean earthquake and tsunami
West Andaman Fault