Sand Boil
By Earthquake Hazards Program
2021 (approx.)
![Photo of light gray sand with a dark hole](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/SANDBOIL.jpg?itok=aqMRP6hm)
Detailed Description
A sand boil is sand and water that come out onto the ground surface during an earthquake as a result of liquefaction at shallow depth.
Sources/Usage
Photo by John Tinsley, U.S. Geological Survey