Fairly big earthquake. Sounds like it has caused some damage. Farly big earthquake. Sounds like it has caused some damage. Looks like a thrust or reverse earthquake, USGS poses the fault is in the Sunda crust. Fairly deep earthquake, but this is continental crust i believe, so might not be too deep after all.
Here are some news web sites reporting of damage:
Here is a map that shows the epicenter as it relates to the general plate tectonics of the region. the Philippine plate is subducting westward beneath the Sunda plate, part of the Eurasia plate. The island of Sumatra is on the western side of this plate, where the India-Australia plate subducts northeasterly to form the Java, Sumatra, and Andaman subduction zones.
Here is the same map with historic earthquakes plotted. Note how they outline the plate boundaries.
Here is a map zoomed into the region.
Here is the same map with shaking intensity plotted.
Here are the PAGER data (estimates for the amount of people or fiscal damage).
Here is the PAGER map (estimates for the amount of people or fiscal damage).
Here is the map of the local tectonic setting from the USGS.