Title: Reconnaissance geologic and geomorphic evaluation of the 2023 landslide along the southern flank of Peavine Mountain, Reno, Nevada
Author: Rich D. Koehler, James E. Faulds, and Aren T. Crandall-Bear
Year: 2023
Series: Open-File Report 2023-13
Version:
Format: 16 pages, color
Scale:
In the spring of 2023, a landslide occurred on the south flank of Peavine Mountain west of Reno, Nevada near the residential community of Somersett and in the vicinity of future planned developments. The Nevada Bureau of Mines and Geology conducted an investigation to document the site characteristics, assess possible factors that may have contributed to the failure, and determine when the slide occurred. Analysis of InSAR data indicates that the landslide occurred between April 26 and May 1, 2023. The field observations indicate that the slide was a bedrock translational block slide/slump associated with extension along the head scarp and buckling at the toe of the slide. The dominant contributing factors include saturation of the subsurface related to above normal precipitation during the 2022/2023 winter, record high temperatures on April 28–29 leading to accelerated snow melt, and clay weathering of the bedrock and associated discontinuities. It is recommended that future developments in the area implement focused geotechnical studies to assess additional landslide hazards.
Suggested citation:
Koehler, R.D., Faulds, J.E., and Crandall-Bear, A.T., 2023, Reconnaissance geologic and geomorphic evaluation of the 2023 landslide along the southern flank of Peavine Mountain, Reno, Nevada: Nevada Bureau of Mines and Geology Open-File Report 2023-13, 16 p.
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