ἄφνω δὲ σεισμὸς ἐγένετο μέγας, ὥστε σαλευθῆναι τὰ θεμέλια τοῦ δεσμωτηρίου· ἀνεῴχθησάν τε παραχρῆμα αἱ θύραι πᾶσαι, καὶ πάντων τὰ δεσμὰ ἀνέθη.
And suddenly there was a great earthquake, so that the foundations of the prison were shaken: and immediately all the doors were opened, and every one's bands were loosed.
De repente se produjo un terremoto tan violento que sacudió los cimientos de la cárcel. Al instante se abrieron todas las puertas y a todos se les soltaron las cadenas.