Predicting Volcanic Eruptions

This presentation uses data from several eruptive episodes of Mount St. Helens in the 1980's to show the way in which a series of eruptions were accurately predicted by USGS scientists as far as 3 weeks before eruptive activity occurred. Several modules demonstrate the use of earthquakes and deformation of a volcano for predicting eruptions and allow you to predict an actual eruption of Mount St. Helens using data collected by scientists of the USGS Cascades Volcano Observatory. Choose the screen size to fit your computer.

| Very large screen (1000 pixels) | Large screen (800 pixels) |
| Medium screen (600 pixels) | Small screen (500 pixels) |

The presentation requires Macromedia's Flash Player. Also available is a text-only version.