Over-saturation leads to landslide in Riverton, residents in one home asked to evacuate

A landslide in a Riverton neighborhood Thursday afternoon left a 30-foot wide, and 40-foot tall hole on a hillside between two homes.


Homes evacuated as precaution after mudslide in Utah County

Authorities are evacuating residents as a precaution after a mudslide damaged a few homes in Woodland Hills overnight.


Mudslide causes significant delays in Spanish Fork Canyon

Heavy rain in Utah County led to a mudslide on U.S. 6 in Spanish Fork Canyon Sunday afternoon, the Utah Highway Patrol said.


Landslide Inventory Map for the Upper Muddy Creek Area, Sanpete and Sevier Counties, Utah

SS-155 insert

By: Greg N. McDonald and Richard E. Giraud

This 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 Wasatch Plateau and includes the Beaver Creek and Horse Creek Hydrologic Units in the east-southeast-draining Muddy Creek headwaters. The map and accompanying geodatabase show and characterize landslides and provide information useful for managing landslide-related issues. Spatial and tubular data for each landslide are stored in the geodatabase and linked to the inventory map. Landslide information in the geodatabase includes: area, material type, movement type, landslide deposit name, landslide source name, movement activity, thickness, movement direction, approximate movement dates, geologic unit(s) associated with landsliding, confidence in mapped boundaries, mapper, peer reviewer, and general comments.


Catch this NOVA Special on Landslides TONIGHT!

Catch this NOVA special on landslides tonight on KUED Channel 7 at 8:00 tonight.

In less than two minutes in March, a one-square-mile field of debris slammed into the Washington state community of Oso, killing 41 and destroying nearly 50 homes. Drawing on analysis of other recent landslides around the world, geologists are investigating what triggered the deadliest U.S. landslide in decades and whether climate change is increasing the risk of similar disasters around the globe.


One of world’s largest landslide deposits discovered in Utah

One of our Utah Geological Survey geologists, Robert Biek, is an author on the newly discovered Markagunt gravity slide. Located in Utah, the slide has come to be found as one of the world’s largest known landslides (tied for largest, alongside the Heart Mountain gravity slide in northwest Wyoming). Read more about it!

Some things can be too big to notice, as our flat-Earth-believing ancestors can attest, having failed to work out that the surface of the Earth curves around a sphere. Or, as the saying goes, you can focus on the details of some fascinating trees and miss interesting facts about the forest as a whole.


Destructive Landslide Turned into Tranquil Geologic Park

The Springhill landslide site has been turned into the new Springhill Geologic Park by the City of North Salt Lake.

In 2012, the city was awarded a matching-fund Federal Emergency Management Agency (FEMA) Pre-Disaster Mitigation Grant to buy and demolish homes and turn the landslide site into an open-space park.

The Utah Geological Survey provided landslide activity data for the grant application including the collection of location data from 32 monitoring points on a monthly basis from May 5, 2011 until August 1, 2011, and mapping of geomorphic landslide features indicating ground deformation.

The new park was created after 12 homes were demolished and grading had leveled the lots, roadways were removed, and a drainage system was constructed to collect surface and spring water for transport to existing storm drains.

The Utah Geological Survey will continue monitoring landslide activity, but less frequently (based on landslide conditions) than in the past.

Read more about the Springhill landside HERE.

Glad You Asked: August 28, 2014

With recent geologic hazards like the North Salt Lake landslide, and Napa, California’s large earthquake, perhaps this “Glad You Asked” article can come in handy. Are you thinking of buying a home, and are wondering what geologic hazards are present at some of your prospects? Read for more information!


Early study warned of potential landslides at Eaglepointe

Although a 2003 geotechnical report warned of the potential for landslides at Eaglepointe Estates in North Salt Lake, a 2013 supplemental study made no mention of the clay bedrock flagged for attention in the first and that one geologist called “a notorious bad boy” for instability.