After looking on a few photos of the crash site, I believe there were some kind of post impact fire. The hillsides are blackened and in one picture you can see a small spruce all black. It seems the soil layer was very thin and it is unlikely that the aircraft would have made a large crater. A dent would be more in line with what the photos tell.
My sympathies goes out for all that lost dear ones and for the rescue crew. I can't imagine the awful awful task they have, picking pieces of humans from the ground. If anybody knows how to help the helpers, I wouldn't think twice to volunteer!