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- 20 Oct 17Yesterday, Thursday 19 Oct., more than 110,000 Arizonans participated in the ShakeOut earthquake preparedness drill – Drop, Cover, & Hold On.
- 11 Oct 17Bats Inhabiting Arizona's Abandoned Mines |An invited post by Jason Corbett: Director, Subterranean Program, Bat Conservation International
- 05 Oct 17On 28 Sept. 2017, I drove to Hayden to interview long-time ASARCO employee Joe Wilhelm regarding the history and future of the Hayden Smelter.
- 03 Oct 17
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.
- 14 Sep 17We just delivered geologic map data for four 7.5’ quadrangles to the US Geological Survey as part of our 2017 STATEMAP work.
- 05 Sep 17Over the past decade the Southwestern U.S. has seen a surge in the number and intensity of wildland fires.
- 30 Aug 17Following a 15-month hiatus, the Arizona Mining Review (AMR) filmed and its 40th episode, Pozzolan mining in central Arizona, on 28 Aug 2017.
- 29 Aug 17At 7:03 a.m. on 28 August, a magnitude 3.3 earthquake occurred in the northwest corner of Arizona about 20 miles SSE of Mesquite, Nevada.
- 16 Aug 17Pellentesque placerat eget elit nec euismod. Mauris tempor cursus dolor. Ut dolor elit, ullamcorper quis ornare vel, congue id orci diam.
- 14 Aug 17In 1937, geologist Eldred Dewey Wilson coined the phrase ‘Mazatzal Revolution’ to describe mountain building along the western edge of the North American craton.
- 10 Aug 17
By Order dated July 13, 2017, Maricopa County Superior Court Judge Mark H. Brain (presiding judge in the Gila River adjudication) affirmed the most recent effort by the Arizona Dept. of Water Resources (ADWR) to delineate the lateral extent of certain hydrogeologic areas known as subflow zones in the San Pedro River watershed in southeastern Arizona. A well located within a subflow zone is presumed to be pumping subflow, which is water that is hydraulically connected to the surface flow of a perennial or intermittent stream.
- 05 Aug 17The US Geological Survey just released an online interactive map tool that showcases earthquake event scenarios for select faults in the contiguous U.S.
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