I noticed this happen only in co-op vs. ai games. if you hold your mouse on the top right of the minimap (near the purple team fountain), the screen will "shake." your mouse has to be a little below the exact top and close to the exact right side.
Hey NQ2Resq, does this also happen in custom SR games or only co-op. Can you upload a picture with where in the minimap you point in order to get this to happen?
[Game][Minor] Shaky Screen