Extensive ground fractures damage U.S. 191 in Cochise County.

AZGS in the field examining earth fissures with UNESCO, AIPG and AGS.

AZGS compiled and analyzed physical, geophysical and geologic data for Higley and northern Picacho basins near Florence, Arizona, to evaluate hydrogeologic conditions and boundaries related to groundwater potential.

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.