Where are earthquakes expected in the world, especially in Asia?
Every fault that experienced an earthquake in the past is likely to experience earthquakes in the future. Plate boundaries are of course the most likely places to be struck by earthquakes, but seismic events can also happen within tectonic plates.
In Southeast Asia, the plate boundary between the Indo-Australian and Eurasian plates (i.e. the Sunda Megathrust) is very likely to be hit by earthquakes (and tsunamis). Scientists study the segmentation of the Sunda megathrust and the return times of earthquakes in this subduction zone to mitigate their effects as much as possible.