Colorado City's July 4th shaken by earthquakes

Fourth of July fireworks in Colorado City, northern Arizona, were accompanied by two small magnitude earthquakes: magnitude 3.0 at 9:10 p.m., and a M 2.5 event at 11:01 pm (MST).

Image showing the M 3.0 event, the M 2.5 event occurred in nearly the same location. http://earthquake.usgs.gov/earthquakes/eventpage/uu60154867…

Over the past week there have been a total of 5 recorded earthquakes, the largest being the M=3.0 on July 4.  The others had magnitudes of from 1.6 to 2.5

The affected area is in the southern end of the Intermountain Seismic Belt which extend through Utah, Idaho, and Montana.


[Right, orange star marks the epicenter of the largest quake.  Below, yellow dots mark epicenters of all 5 events. Credit, USGS]