The Arizona Geological Survey reported a series of small, shallow earthquakes on Saturday in the Duncan/Safford area in southeastern Arizona, with the largest being an ML 3.6 at 10:01 am MST on 27 Apr 2019.
Officials say that hundreds of earthquakes occur in Arizona each year by most are not noticed. Survey officials say that most of Arizona quake activity occurs in the northern part of the stat, although quakes also occur in the Southeastern part of the state, such as Duncan, Safford and Tucson as well as southwestern areas like Yuma.
There are approximately 100 known faults in the state, many of them active.
