This report discusses the spatial distribution of the largest, most damaging floods in the United States and some of the factors that affect this distribution. Topics include regional climatology, topography, and basin...

This map shows debris flow hazard areas in the United States, including locations of known debris flows and predictions of where future flows might occur. It shows the locations of debris flows in two different ways, as...

In spite of the unpredictability of volcanoes, scientists have learned to read the many signs they display prior to an eruption, in the hope of minimizing damage to lives and personal property. This video segment...

With the explicit mission of saving lives and improving economic efficiency by issuing the best watches, warnings, forecasts and analyses of hazardous tropical weather, this site features continuous watch on tropical...

This report outlines the key elements of a comprehensive and effective national strategy for reducing losses from landslides nationwide and provides an assessment of the status, needs, and associated costs of this...