The fuel would not have contributed to the crater. Fuel does not explode, not at the speed needed to form a crater. It requires oxygen. No matter how much fuel was present, there was not enough oxygen in the immediate vicinity of the crash to burn that much fuel.

The fact that there was a fire long after the impact shows the fuel was not burnt in the crash. Fuel hung around long enough to still be burning at least several seconds afterwards, long after the crater was formed. That is why it wasn't a missile. Missiles use high explosives (propellants and warheads) which burn up all at once to generally leave a non-burning crater.

Some back-of-napkin math yields a crater depth of a little under a meter ... which is in the ballpark of images.

aircraft (1.5m radius cylinder x 18m long) at 6700kg = 51.54 kg/m3 aircraft density... over ~1,500kg/m3 average soil density x aircraft 18m length = 0.63m

=.63m / 2-foot penetration below ground level... which is what the pictures show.

Soil is dense. Aircraft are marshmallows compared to soil.