About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

Utah Geological Association


Geology of Northern Utah and Vicinity, 1999
Pages 223-232

Preliminary Evaluation of Possible Earthquake-Induced Landslides in Eastern Box Elder County, Utah, With Emphasis on the Madsen Spur Landslide

Kimm M. Harty, Mike Lowe


In the early 1990s we studied six features identified as liquefaction-induced lateral-spread landslides in Box Elder County, including the Madsen Spur landslide. Most of these landslides occurred about 12,000 to 13,000 14C yr B.P. in Lake Bonneville gravels, when the lake was at an elevation of 1,353 meters (4,440 ft) and receding. Our field work, aerial-photo mapping, and subsequent discussions with previous investigators lead us to conclude that liquefaction was not necessary for the occurrence of the six landslides. We cannot discount the possibility that liquefaction may have occurred in the gravel deposits saturated by Lake Bonneville, but the morphology of these landslides, especially the Madsen Spur landslide, and steepness of slopes on which they formed are such that movement could have occurred in the absence of liquefaction. For most of these landslides, including the Madsen Spur landslide, the possibility of renewed, non-liquefaction-induced failure, especially during large-magnitude earthquakes or significant wet periods in northern Utah, exists and may present a hazard to nearby development.

Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Watermarked PDF Document: $14
Open PDF Document: $24