"In the United States, it was estimated in 1985 that the total dollar losses from landslides average between $1 billion and $2 billion per year. (As this is an old estimate, a more realistic number is between $2 billion and $4 billion per year, computed for year 2010 dollars). This figure is a conservative estimate, as there is no uniform method or overall agency that keeps track of or reports landslide losses. Landslides result in extremely high monetary losses in other countries, but there is no overall estimate as to the exact amount. The 1998 El Niño event in the San Francisco Bay Area caused landslide damage estimated to total approximately $210.2 million (year 2010 dollars)."
- Landslides 101 (Webpage), U.S. Geological Survey
Basic information on landslides, where they occur, and why they are important.
- Estimating the costs of landslide damage in the United States (Report), U.S. Geological Survey
This 1980 report provides the most recent formal estimate of landslide damages in the United States.
- Landslide Loss Reduction: A Guide for State and Local Government Planning (Guidebook), Federal Emergency Management Agency
A practical, politically feasible guide for State and local officials involved in landslide hazard mitigation