earthquake plates diagram
What tectonic plate movement caused the Sichuan Earthquake 2008?

I need to know exactly what boundary; convergent, divergent or transform caused the Sichuan Earthquake last year. Diagrams will be appreciated. Thanks

http://en.wikipedia.org/wiki/2008_Sichuan_earthquake

convergent.

<>

when i first looked, it seemed well away from the Himalayas.
but when i saw the line of aftershocks, it made me quite suspicious.
reading, i see it is part of the collision boundary.