Probably something from Vandenberg.
They often shoot up rockets around sunset.
There is a Delta launch going on in Florida. Don't see anything at Vandenberg, especially a multi-engine booster.
I feel like were going to have a Big Earthquake tonight!
They usually launch to the south, towards the south pacific. The oberver here apparently saw it heading north west, from his position which is south Vandenberg.
It was not going up, it was coming in from very, very high altitude. Grew up around Vandenberg, did a very in-depth project about launches at Vandenberg, have viewed literally dozens of launches from Vandenberg, and know a Vandenberg launch. This was not a launch, not even close in appearance or trajectory. It was a return, and it was not in the vicinity of Vandenberg.