Well done, Dale. I dips me lid to you. I would never have got it because my knowledge of the bible is pretty abysmal. I found the following at BiblePlaces.com courtesy of Google:

Philippian Jail

This traditional place of Paul and Silas's imprisonment is of dubious authenticity, but it remembers the attack on these men and their subsequent flogging and imprisonment. In the course of the night, a violent earthquake shook the prison and the jailer feared that all might have escaped. After learning that none had fled, the Philippian jailer put his faith in Christ and was baptized with his family.

--Stewie.