This site from the US Geological Survey provides general information about the Hawaiian volcanoes.

These time lapse movies of Kilauea are hosted by the Hawaiian Volcano Observatory. This resource also includes a webcam which provides near real time footage of two active volcanoes.

At this site from the U.S. Geological Survey you can find out what makes rain such a valuable resource. Included is a chart that tells how much rain different cities in the United States receive. Click Home to access the site in Spanish.

This site provides a discussion of the physical properties of water. Click Home to access the site in Spanish.

This page from the US Geological Survey has several links to pages that explain the formation of volcanoes. These links will also explain the creation of new land and other hazards.

Animations illustrating long-lasting tsunami waves once they strike a coast.

This site from the U.S. Geological Survey provides a nice summary of cesium from the viewpoint of a geologist or mineralogist.

Site delves into magma, lava and lava flows. Provides numerous links for additional references.

Tambora of Indonesia had one of the deadliest eruptions since 1500. You will learn about the volcano and you can link to other related items.

The U.S. Geological Survey and the National Weather Service work together to provide information at this site about floods. The site talks about two main topics on floods, stream gaging and flood forecasting.

What are rocks made of? Where do rocks come from? What is an igneous rock? These are just some of the questions answered by the scientists of the U.S. Geologic Survey.

A calculator to show the difference in magnitude between earthquakes. Understand that the Richter scale used to measure earthquakes is base-10 logarithmic scale.

Mt. Rainier first erupted a million years ago. Find out all about its eruptive history and potential hazards that could threaten people today.

Learn about the history, mass balance and meteorlogical data, and view several photos of the Wolverine Glacier.

Locate all the most recent earthquakes on this interactive map. Data includes location, magnitude and time of the quake.

General information about the San Francisco earthquake, as well as some information about how studying that earthquake helped scientists in learning more about when and where earthquakes will occur.

All kinds of earthquake data compiled here. Find the deadliest earthquakes, most damaging earthquakes, world and US statistics, historical earthquake lists, and more.

A detailed description of events that took place during the 1811 and 1812 earthquakes in New Madrid, and information concerning a similar event in the future.

Information about all the volcanoes in the Cascades, which range from Canada in the north to California in the south.

This site contains information about we have learned about the San Andreas Fault since 1906.

Mauna Loa means long mountain, and it is the largest and most active volcano on earth. Get some good overall facts regarding this infamous volcano.

The U.S. Geological Survey offers information for teachers and students interested on Earth Science research. Contains references to general information as well as current research and events.

Updated daily, this page describes any notable earthquakes that happened on this day in history. Each earthquake has a link to more information about what happened on that particular day.

Find out how much of the water on Earth is actually usable by humans, and where the rest of it is located. Learn where our water comes from and why it never runs out. Click Home to access the site in Spanish.