Arizona Geology

The AZGS’s online document repository delivered more than 27,500 downloads of geologic maps, open-file reports, bulletins, bulletins, c...

The Arizona Dept. of Water Resources has released its second report on statewide monitoring of land subsidence . " Land Subsidence Mo...

A magnitude 3.1 earthquake occurred at 9:13 pm on Friday evening, in the aftershock area of the M5.2 Duncan earthquake. [ Right, orange ...

The Duncan area of eastern Arizona had another measurable aftershock early this morning, following the June 28, M5.2 event.  A M2.8 quake...

We learned late today that Dr. William H. Dresher passed away on August 9.   Bill was named the Dean of the College of Mines and Director o...

We experienced another aftershock to the June 28, M5.2 Duncan earthquake, with a magnitude 3.0 event at 9:39 pm local time Saturday night...

Officials of HudBay Minerals, new owner of Augusta Resources, which is the parent company to Rosemont Copper, were introduced today at the A...

The annual Earth Science Week celebration is October 12 – 18 this year, with Friday, October 17 being Geologic Map Day.  The theme this y...

We have now recorded signals from four earthquakes last night, east of Kingman, ranging in magnitude from M2.0 to M3.1: M 3.0 at 8:35...

The USGS reports a M3.0 earthquake at 8:35 pm last night, about 22 miles (36 km) east of Kingman, Arizona.  [ Right, orange star marks ep...

Two small earthquakes hit the Arizona - New Mexico border area just after midnight this morning, likely aftershocks from the June 28 magnitu...