Geologic Hazards

By: M. W. Halling, J. R. Keaton, L. R. Anderson, and W. Kohler Maximum ground motion maps for the State of Utah were prepared for the Utah Department of Transportation to provide context for probabilistic ground motion maps. Deterministic procedures...

By: G. E. Christenson, editor Ground shaking and slope failures were the dominant geologic effects associated with the September 2, 1992 St. George earthquake. Ground shaking caused damage to buildings in Hurricane, La Verkin, Washington, St. George, and other. A...

By: G. E. Christenson The purpose of geologic hazards ordinances is to encourage prudent land uses in areas of geologic hazards for the protection of the health, safety, and property of the citizens of the city or county enacting the...

By: S. Hecker This report consolidates and synthesizes information on Quaternary faulting, folding, and volcanism in Utah and characterizes recent tectonic activity throughout the state. The primary purpose is to provide a comprehensive reference on fault-specific seismic sources and surface...

By: W. R. Lund, editorGeologic exposures in the Salt Lake City region record a long history of sedimentation and tectonic activity extending back to the Precambrian Era. Today, the city lies above a deep, sediment-filled basin flanked by two uplifted...

By: Jessica J. Castleton and Ben A. Erickson On August 24, 2019, at approximately 5:30 p.m., a large slab of Navajo Sandstone detached from a vertical cliff face of Cable Mountain above the Weeping Rock area, in Zion National Park,...

By: Greg N. McDonald and Richard E. GiraudThis map presents a landslide inventory for the 2012 Seeley fire area, Carbon and Emery Counties, Utah, at a scale of 1:24,000. The purposes of the map and accompanying geodatabase are to show...

By: Jessica J. Castleton, Ashley H. Elliot, and Greg N. McDonaldThe Copperton quadrangle, in the western part of the Salt Lake Valley, is expected to experience a significant population increase over the next several decades. As urbanization expands into areas...

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By: M. D. Hylland and M. Lowe The Farmington Siding landslide complex is in Davis County, Utah, about 25 kilometers north of Salt Lake City. The landslide complex covers approximately 19.5 square kilometers and is one of 13 late Pleistocene/Holocene...

By: W. R. Lund, editorThe intent of this report is to provide geologic, hydrologic, and soils information on the Mt. Pleasant watershed which will allow city planners and others to evaluate development proposals by recognizing geologic hazards and identifying land-use...

By: Richard E. Giraud and Greg N. McDonaldThis map presents a landslide inventory for the Big Bear Creek and Seely Creek drainages, Sanpete and Emery Counties, Utah, at a scale of 1:24,000. We used geographic information system (GIS) software to...

By: Jessica J. Castleton, Ben A. Erickson, Greg N. McDonald, and Gregg S. BeukelmanThe Tickville Spring quadrangle, in southwestern Salt Lake Valley and Northern Cedar Valley, is expected to experience a significant population increase over the next several decades. As...

By: Jessica J. Castleton, Ben A. Erickson, and Emily J. KleberThe Moab quadrangle is located in the south-central portion of Grand County, Utah. Currently, the area is experiencing rapid development and population growth, that is expected to continue for the...

By: Richard E. Giraud and Greg N. McDonaldThis map presents a landslide inventory for the Ferron Creek area, Sanpete and Emery Counties, Utah, at a scale of 1:24,000. The purposes of the map and accompanying geodatabase are to show and...

By: Greg N. McDonald and Richard E. GiraudThis map represents a landslide inventory for the upper Muddy Creek area, Sanpete and Sevier Counties, Utah, at a scale of 1:24,000. The map covers 54 square miles on southern part of the...

By: Tyler R. Knudsen and William R. LundHistorically, the communities of La Verkin, Virgin, Rockville, and Springdale have been affected by a variety of geologic hazards. Recent damaging rock falls, riverine floods, recurrent flash floods and landslides, and problems associated...

By: J. J. Castleton, A. H. Elliott, and G. N. McDonaldThe Magna quadrangle, in the western part of Salt Lake Valley, is expected to experience a significant population increase in the next several decades. As urbanization expands into areas less...

By: W. R. Lund, T. R. Knudsen, and D. L Sharrow The Utah Geological Survey conducted a geologic-hazard investigation of a portion of Zion national Park to provide the National Park Service with geologic-hazard information for future park management. The...

By: F. X. Ashland, G. N. McDonald, L. M. Shaw, and J. A. Bay Contains a 31-page report and two accompanying plates detailing the results of geologic and geophysical investigations of the Meadow Creek landslide in western Kane County, Utah,...

By: W. R. Lund, T. R. Knudsen, G. S. Vice, and L. M. ShawThe St. George-Hurricane metropolitan area is one of the nation?s fastest growing regions. As land well suited for development becomes increasingly scarce, urbanization has moved into less...

By: G. N. McDonald and F. X. Ashland Contains a 41-page report and a 1:150,000-scale map defining seismic site conditions for the Wasatch Front urban corridor. This mapping, partially funded through the U.S. Geological Survey’s National Hazards Reduction Program, provides...