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Magnitude 3.3 earthquake occurs eight miles east of Flagstaff, Arizona
On 13 Oct. 2020 at 9:16 a.m. (MST / PDT) , a shallow magnitude 3.3 earthquake rattled Walnut Canyon about 8 miles east of Flagstaff, Arizona (population ~ 74,000).
Island Mountains of Southeastern Arizona – NEW Down-to-Earth Booklet
John V. Bezy's latest contribution to the AZGS DTE series: ‘Island Mountains of Southeastern Arizona: Geology, Vegetation & Wildlife’.
America Geoheritage II – Webinar Series Autumn 2020
A groundswell of interest in the U.S. regarding ‘Geoheritage’, America’s natural geologic legacy showcased in America Geoheritage II - webinar series fall 2020.
Virtual Geological Field Trips for Education through Exploration
Studying the Earth in the field is an integral method of geoscience (Kastens et al., 2009), and teaching in the field is fundamental to geoscience education (Whitmeyer et al., 2009).
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.
New mapping of the Blythe 7 ½’ quadrangle records the pre- and post-dam era history of transformation of the Lower Colorado River
The evolving sedimentological picture of the lower Colorado River system before and after engineering efforts to control flow.
UNESCO, AIPG and AGS examining subsidence and earth fissures in central Arizona
AZGS in the field examining earth fissures with UNESCO, AIPG and AGS.
Are small magnitude earthquakes in N. Sonora aftershocks of the 1887 M7.5 earthquake?
Do recent earthquakes in northern Sonora represent late aftershocks of the 1887 M7.5 earthquake?
AZGS puts its shoulder to the wheel at GSA-2019
AZGS has a strong presence at GSA-2019 in Phoenix, Arizona, on the week of 22 Sept. 2019.
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.

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