News

Home • News
View Archived News Articles

Part three: Earthquake risk maps available

Article Published 01/05/2015

What are some of the specific earthquake risks in Layton City?
The State of Utah did an extensive study in 2008 and represented in map form, where certain risks, relating to quakes, are high or low, or in between.
From the danger of liquefaction (where water-saturated soil can be transformed during an earthquake to act like a liquid and undermine foundations); to landslides; to debris flows; to hazards near actual fault lines; the state produced four different risk maps of Northern Utah -- including Layton City.
It is probably a wise idea for residents to check the maps for their home’s  location, or place of business/employment/schooling to know of any special risks.
Also, anyone buying property, or a home in Layton City – or anywhere in Northern Utah --  should pay special attention to these maps.
These maps offer a “zoom-in” option to specifically address location.
LIQUEFACTION:
Most of Layton City is ranked “moderate” risk in danger from liquefaction. However, some stream gullies were rated “high” risk and there were pockets of “low” risk within the city limits too.
-To access the liquefaction danger map of northern Utah:
http://geology.utah.gov/online/c/c-106/c-106liquefaction.pdf
FAULT LINES:
Most fault lines in Layton run east of Highway 89, in the foothills of the Wasatch Mountains.
But, there were a few deviations slightly west of Highway 89.
-To access the Surface fault rupture study area map, go to:
http://geology.utah.gov/online/c/c-106/c-106faults.pdf
LANDSLIDES:
Potential “high” dangers from landslides are most common in the foothills of the mountains. Yet, some hollows and stream gullies were also ranked at a high risk status.
-To access the landslide special study area map, go to:
http://geology.utah.gov/online/c/c-106/c-106landslides.pdf
DEBRIS FLOWS:
The potential hazard of debris flows in Layton City are highest in the foothills of the Wasatch Mountains.
But this was not universal – there were some “moderate” risk areas in the foothills, east of Highway 89.
-To access the special study map on debris flows, go to:
http://geology.utah.gov/online/c/c-106/c-106debrisflows.pdf