Somehow my original reply disappeared. Just showing how the quake centers are moving due east, essentially parallel to South Temple and getting closer-and-closer to the surface and wondering where they might reach the surface and potentially cause some surface cracks/movement. Turns out a linear extrapolation puts it near 700E, but from the cross-section below one can see the fault line does not slope in a straight line, but may curve up.
[img]https://i.imgur.com/9ZG97vH.jpg[/img]