Small aftershock in Duncan area

A M2.6 earthquake on the Arizona-New Mexico border is likely an aftershock from the June 28, M5.3 Duncan earthquake.  Because of it's small size and the limited seismic station coverage in the area, we suspect the location is not well constrained.     The quake hit at 9:21 a.m. this morning.  We expect aftershocks will continue for weeks to months.  [Right, orange star marks epicenter. Credit, USGS]