The attenuation of seismic wave energy in and around the source area of the Andaman earthquake of 13 September 2002 is estimated using high-quality aftershock data. Thirteen aftershocks, duration magnitude (M <Subscript>d</Subscript>) ranging between 2.9 and 4.1, depth 25 km, which were well recorded by a temporary...</subscript>

The Andaman-Sumatra subduction zone is seismically one of the most active and complex subduction zones that produced the 26 December 2004 mega thrust earthquake (Mw 9.3) and large number of aftershocks. About 8,000 earthquakes, including more than 3,000 aftershocks (M ≥ 4.5) of the 2004...