Holy schnitzel! Glad to hear you (and the shrimp) are okay. Safety planning FTW!
You may wish to look into the matter of counseling for the shreemps, though. It's possible the trauma of quaking will reduce breeding rates.
Psychological trauma can result in a number of debilitating physiological issues. :P If I, for one, were a shrimp in an earthquake, I'd probably have a heart attack.
All jokes aside, though, I'm glad that you're well enough to be squirreling away about groundwater effects XD