»When you throw a stone in the water with a very low angle. A splash will appear which goes in one direction before the stone sink.«
The "same" was happening at the Moldavite Impact. During the so called "Jetting phase" (that`s the moment directly after the first
touch of the Meteorite with the Earthsurface) there result an extreme hot ray of steam or even plasma, made of the first layer hit by the meteorite.
This ray shot in eastern direction.