Living on the island of Hawaii brings you the hazard of living near a volcano. Read about actual eruptions and get scientific seismic information and maps.

This advanced site discusses some of the research done and research techniques used in studies of the Monterey Canyon. Great graphics showing the position of the canyon relative to other features of the continental margin. Also topographic maps of the area are shown.

All the information that you would ever want to know about Mt. Saint Helens. There is a massive number of links to current information, backgorund information, items of interest, eruption history and the May 18, 1980 eruption.

Use this website to find out about water quality issues anywhere in the U.S.A. where water studies have been conducted by the U.S. Geological Survey.

The Great Plains organization provides individuals, organizations, and governments with key information about the Great Plains environment through a resource pool of publications, reports, and government data.

This site describes the details of a project to map the seafloor of the Pacific Ocean. Includes images, movies, links to related information, and more.

Excellent graphics and understandable text about all aspects of plate tectonics including mid-ocean ridges.

USGS provides lesson plans, activities, maps, podcasts, online lectures, videos and animations, and lots more. Covers all grade levels.

This site provides information on glaciers from around the world. Its two-page fact sheet can be downloaded as a PDF file.

Here's a common sense site about what to do in case you are in the area of a tsunami. This site is very interesting in that it provides lots of pictures of the damage a tsunami can do. Lessons were learned after these particular tsunamis.

This site from the U.S. Geological Survey explains how the Himalayas were formed by plate-tectonic forces. Includes a nice map to help visualize the theory.

This site provides a detailed discussion of the Earth's interior. Facts about the crust, mantle, and core are given along with diagrams of each. Also presents a table that lists the thickness and types of rock found in each part of the interior.

The United States Geological Survey explains the creation and the uses of the National Map. The student can access the map and explore the United States in an interactive setting.

A great overall site that tells us about the San Andreas fault, where it is and what kind of movements have occurred. It then goes on to talk about earthquakes in general and their occurrences along fault lines.

This page from the U.S. Geological Survey is devoted to Tsunamis in the Pacific Northwest. View some animations of tsunamis.

Types of volcanic eruptions are named after actual volcanoes. View the eruptions of these volcanoes.

The U.S. Geological Survey provides descriptions and illustrations for the plate boundaries of the Earth's surface.

Information and statistics on the mineral vermiculite are presented by the USGS. Domestic production, sources, and substitutes are discussed in detail.

This online book by Robert Tilling covers some key concepts such as eruptions, extraterrestrial volcanoes, and people and volcanoes.

This graphical and textual journey about the US volcanoes was made by Steven Brantley. There is an introduction, volcanoes and plate tectonics, Hawaiian volcanoes, cascade volcanoes, restless volcanoes, a glossary and further readings.