Study links landslide danger to poverty in Appalachian United States

Researchers published a new analysis in Earth’s Future that combines landslide hazard maps with income data to identify who is most exposed in the United States. The study estimates a minimum of 6.5 million people live in areas with a high probability of landslides, a figure that rises sharply when medium-risk zones are included. Appalachia emerges as a hotspot, housing 3.6 million residents—over half of the national total—many of whom are low-income.

In contrast, affluent homeowners on the West Coast also appear on the map but have greater access to engineering solutions. Geologists like Ben Mirus of the U.S. Geological Survey and Joe Wartman of the University of Washington stress that the refined mapping can focus resources on those most at risk, despite occasional opposition from property owners concerned about values. Continued mapping efforts aim to improve public safety and inform decisions about relocation or mitigation.