Volcanic eruptions, their products and their hazards.
Recollections of people affected by the 18 May 1980 eruption of Mount St. Helens.
Volcanoes are mountains built by volcanism.
The major volcano types found on land.
Drilling into active volcanoes is not as crazy as you think.
A gallery of the four basic types of mud volcano.
The biggest eruption in history depends on what the meaning of "history" is.
Twenty-three enormous "supervolcanoes."
Volcanism is more than volcanoes: it's what recycles the Earth's crust.
Try these twelve questions . . . and don't explode if you get one wrong.
Moviemakers and scientists have gone beyond vinegar and baking soda.
An excellent primer from the Michigan Tech volcano site.
From
Geotimes, a different take on volcano hazards focusing on causes of injury and death, by an emergency medicine specialist and a veteran volcanologist.
More than just a list, this is a collection of review articles on the many bad things volcanoes do.
Part of an online book from VolcanoWorld, written by Stephen Mattox of the Hawaii Natural History Association. It details how the growth of the Hawaiian Islands has created the risk of immense landslides and tsunamis bigger than any ever recorded.
This authoritative site focuses on American volcanoes and how to live with them.
A U.S. Geological Survey fact sheet with well-earned advice on approaching hot lava; "common sense is not enough."
A fact sheet from the USGS on the hazard and the ways we study it.
One of nine agencies that monitor the world's volcanoes on behalf of the world's air travelers.
The VEI classifies the severity of volcanic eruptions from 0 to 8 based on a mixture of evidence.