The United States Geological Survey's website for the Cascades Volcano Observatory (CVO) has a host of graphics and maps for the professional volcano researcher or the amateur volcanologist. The maps and graphics are...

Email a USGS scientist your question on volcanoes, earthquakes, tsunamis, mountains, rocks, maps, ground water, lakes, rivers, even some biology. Explore the USGS website and the Frequently Asked Questions section to see...

Reaching out to a volcano can be a precarious enterprise. Reaching out to teach young people about volcanoes and related geological matters is less precarious, particularly after discovering this site. Created by staff...

This learning module from the University Corporation for Atmospheric Research will help students learn more about volcanic ash. The module begins with information on Iceland's Eyjafjallajökull Volcano, which erupted in...

This interactive resource adapted from the National Park Service explains the difference between explosive or effusive (lava pours from a vent onto the ground) volcanic eruptions, and describes the hazards associated...