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Displaying 1 - 6 of a total of 6 items
April 19, 2018
Geologic Maps and Landslide Hazards
A geologic map is key to understanding landslide risk. The U.S. Geological Survey (USGS) and numerous state geological surveys around the nation prioritize the mapping of landslide-prone areas. Understanding landslide risk is crucial in making decisions around...
May 19, 2017
Landslide hazard maps based on geologic maps are a tool for local government officials, planners, developers, engineers, insurance companies, lending institutions, and landowners to assess the risk and take appropriate actions.
Defining the Problem
Damaging landslides occur even in vertically...
May 19, 2017
Geologic maps can help to show which areas may be more prone to landslides and therefore directly assist in making optimum engineering design choices.
Defining the Problem
U.S Highway 85 and ND Highway 22, along with numerous county roads, buildings, pipelines, and power lines, have been...
May 19, 2017
In California, detailed modern geologic maps are fundamental for evaluating how susceptible an area is to earthquake-induced landslides.
Defining the Problem
The geologic history of the Oakland, California, area has produced steep hillsides and unstable rock and soil that generate damaging...
May 19, 2017
Geologic maps are useful in identifying areas that may be affected by post-wildfire debris flows. Land-use planners use these maps to identify potential hazards in areas that are proposed for development and to develop mitigation strategies. The maps can also focus post-wildfire emergency planning...
March 31, 2017
More than just volcanic eruptions
Volcanic eruptions are a serious hazard. But at many stratovolcanoes in Washington, Oregon, Northern California, and Alaska, landslides and debris flows can be just as dangerous. Some of these - especially volcanic mudflows (lahars) - are directly triggered by...
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