http://quake.wr.usgs.gov/recenteqs/Maps/117-34.html
Short, but strong. 5.3. Seems to be a separate quake, not an aftershock. Although it seems to have tirggered a 2.4 aftershock at the site of last week's. There was a 3.5 immediately after the big one (I think I felt it...either that or my legs were still shaking), and then a couple 2.2's