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New digital geologic maps encompass gold/silver mining districts of Mohave County
AZGS releases geologic maps for the Secret Pass 7 ½' Quadrangle and the southern part of the Union Pass 7 ½' Quadrangle, Mohave County, Arizona.
Reaching beyond the geosciences choir with social media
AZGS uses social media and web resources to reach beyond our native stakeholders to a broader public audience.
Examining a small rockfall along the I-17 corridor
A summary of observations of a small-volume rockfall along Highway I-17 southbound, near mile-marker 250.
Google Earth Tour: The Faults of Flagstaff, Arizona
A 4-minute Google Earth flight examining the Lake Mary and Cataract Creek Fault systems near Flagstaff, Arizona.
10 Earthquakes that Rattled Arizona
'Ten earthquakes that rattled Arizona', illustrates that Arizona has earthquakes and the potential for damaging, even life-threatening, earthquakes.
ML 3.6 Earthquake near Duncan/Safford in southeastern Arizona

At 10:01 a.m. on 27 April 2019, Duncan, Arizona and environs were rocked by an ML 3.6 earthquake. AZGS Research Geoscientist J.Y. Ben-Horin filed this preliminary report.

Rapid infilling of a fresh earth fissure in southern Pinal County, Arizona w/ comment by Ken Fergason
Rapid infilling of a 2-mile long fissure in the Tator Hills earth study area, Pinal County
Earthquake Swarm along the Washington Fault Zone, Arizona
Northern’ Arizona’s Washington Fault Zone (WFZ) has been reminding us of its potential for earthquake hazards over the past 3 weeks.
Arizona’s Broadband Seismic Network (ABSN) finally has statewide coverage
The Arizona Geological Survey’s broadband seismic network (ABSN) now provides a statewide seismic monitoring network that can be used to estimate seismicity rates, the amount of ground-shaking and can provide seismic data that can be used to image subsurface processes.
Earth fissure undermines Houston Avenue in Apache Junction, Arizona
The 2018 monsoon season opened an earth fissure in Apache Junction that damaged and closed Houston Avenue road.
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