A weird thing happened this morning, I suspect it was a bug, but I'm wondering if this has happened to anyone else.
Jebediah was coming in for reentry to Kerbin when he deployed the parachute too early causing it to be ripped off in the atmosphere. At this point all was lost so he tried something radical: at the moment before impact he jumped out of the capsule. The capsule was going about 280 m/s. He took a hard bounce on the surface and a couple of skids, but miraculously he survived! That was weird, but it gets weirder. Jebediah started trekking back to the crash site and after about two minutes of walking he disappeared into the surface with a puff of dust. The mission log popped up and said Jebediah had been killed by impact with the surface. Which makes sense given the crash, but the time log says he was killed 2+ minutes after every other piece hit the surface.
So two questions: What speed will kill a kerbin? And why did Jebediah "crash into the surface" when he was walking on it?