I might be worried that she has worms considering what a poor feeder she is for you and that she is so small~ have a fecal run and see.

As far as the regurge? They happen sometimes. The earthquake could be at fault, or she could be wormy, or she could just be one of those ultra sensitive snakes................

Clean it up and don't offer any food for at least 10 days from the date she regurged. She needs to replenish the acids she'll need to digest~ if you feed her to quickly she'll just regurge again and create a vicious cycle.
Good Luck!