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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.
Rifting in East Africa | Earth Fissures in Arizona
CBS News uses Arizona earth fissure images to contrast with large ground fracture in the East African Rift of Kenya.
Mead Slope Fault Mapping, Lake Mead, Arizona
AZGS geoscientists are engaged in studying the Mead Slope Fault of NW Arizona.
Shaking it up with AZGS’ Earthquake Fault Videos
Arizona has earthquakes and we have the video evidence to prove it
Arizona's Monsoon Season Drives Earth Fissure Activity
Oddly enough, Arizona has an earth fissure season; a season when fissures are more likely to first appear or undergo renewed activity. This article showcases revised earth fissure maps for parts of Cochise, Maricopa, and Pinal Counties, as well as case studies of one new (Tator Hills) and one reactivated fissure (Apache Junction). Systematic mapping and observations of the physical conditions of ‘older’ fissures suggests that earth fissure activity in some study areas is waning.
Utah Earthquakes (1850–2016) and Quaternary Faults
Utah Geological Survey (UGS) and the University of Utah Seismograph Stations (UUSS) release a 1:500,000 scale ‘Utah Earthquakes (1850-2016) and Quaternary Faults’ map.
Great Arizona ShakeOut 2017 Draws 110,000+ Participants
Yesterday, Thursday 19 Oct., more than 110,000 Arizonans participated in the ShakeOut earthquake preparedness drill – Drop, Cover, & Hold On.
Getting real about earthquakes in Arizona: AZGS at work for Arizona

On the evening of 1 Nov. 2015, residents of the Phoenix Metro area were rudely awakened when a magnitude 4.1 earthquake shook the valley. According to the Arizona Republic, and numerous other Phoenix-based media outlets, people across the Valley of the Sun felt a sharp jolt followed by several seconds of ground shaking. There were no reports of injuries or damage. That modest earthquake generated the sort of media attention that might normally accompany a punishing magnitude 5 or 6 earthquake. But as with real estate sales, it’s all about location.

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