Landslides, Rockfalls, Mudflows, Debris Flows

Landslides A USGS fact sheet about landslides and events that trigger them.

Debris Flows are moving masses of loose mud, sand, soil, rock and water.

Yosemite Rockfall Photos A photo sequence of a rockfall and debris avalanche by Herb Dunn.

Largest Landslides Heart Mountain and Storegga - Earth*s largest known landslides.

Lahars are mudflows that are composed of volcanic debris and water.

Largest Tsunami The wave with the highest run-up was triggered by a rockfall.

Yosemite Rockfall Hazards Learn what the Park Service is doing to reduce rockfall hazard.

Geology Tools - Hammers, field bags, hand lenses, maps, hardness picks, gold pans.

Debris Flow Hazards Rapid landslides that can attain speeds over 30 miles per hour.

Saidmarreh Landslide, Iran One of the world*s largest slides - over five cubic miles of debris!

Homeowners Insurance and Landslides Most policies do not cover landslide damage.

Gifts That Rock - What are the most popular gift items in the Geology.com store?