Geologic mapping has been one of the most fundamental mandates of the U.S. Geological Survey (USGS) since its establishment in 1879. Congress created the USGS to “classify the public lands and examine ...

The Hawaiian Volcano Observatory is part of the U.S. Geological Survey, the science agency of the U.S. Department of Interior. Our job is to obtain and share science-based information about the ...

Discover how volcano monitoring is evolving in the U.S. with the National Volcano Early Warning System for improved eruption safety. First off, nothing says fun like the U.S. Volcano Status Map!