Mysterious Booms solved. First, they are not booms. Second they are not just ground shaking. Sonic booms would not scare residents into calling the authoritarians, or fear a tsunami. Ground shaking by itself would not indicate a possible tornado, nor flashing lights in the sky.<br /><br />To understand, balance a pencil on your index finger, and push it up until it sticks in the ceiling. Then, sit on your couch and drive a remote control car into the next neighborhood. Problems? Now you understand how this can happen.<br />...<br /><a href="https://www.youtube.com/watch?v=WstFmDRRoMc" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=WstFmDRRoMc</a>