This document discusses United States Geological Service success stories with regards to natural hazards. "USGS Warns San Francisco Residents of Landslide Dangers - In early 1998 during record-breaking El Niño storms, the USGS provided emergency workers in the 10-county San Francisco Bay region with maps of landslide hazard areas and realtime warnings of increased landslide risks. No loss of life occurred from these landslides, compared to 25 killed in comparable storms in 1982. […]Flood Warnings Protect People - As floods ravaged many areas of the United States in 1998, USGS personnel maintained a nationwide system of more than 7,000 stream gages. These gages provide accurate, timely information on water levels, which the National Weather Service uses to issue local and regional flood warnings. Local officials also use stream-gage data to make timely decisions about evacuating people in flood-prone areas."
U.S. Geological Survey: http://www.usgs.gov/