Note that the before/after images were taken two months apart.

The ships might not have been there.

It is interesting that the grain silo seems to have shielded a building further away but not directly behind the blast.

It looks like one is moored around the corner and the smaller one is possibly that wreckage on shore north of its previous location. How that's possible I have no idea.

The two images were taken about 2 months apart, so the same ships likely were not there. But still... that was a lot of energy released.