Powerful Blast from SpaceX’s Starship Damages Launch Pad and Wrecks Nearby Minivan
A lot. The exhaust blew a gigantic crater under the launch stand and threw pieces of debris all over the launch site. I will not be shocked if/when they discover that pieces of debris hit and damaged the bottom of the booster.
I saw pictures of the crater, really big. Lots of concrete and sand got kicked up. Probably didn't help as I think they ignited engines in smaller groupings, and the first debris probably damaged the other groups of engines that were fired a little later. A lot of sand cascaded down from the sky miles away, and probably fell on Mexico a few miles south.
Obviously the prior 5 second booster test was woefully inadequate