A video exploring places where subduction zone causes volcanoes to form. [5:24]

Learn the difference between an effusive and an explosive volcano in this video. [2:58]

Geologist Dr. Elizabeth Cottrell, describes why she considers volcanoes "lungs of the earth" in this webcast. [29:15]

Measuring magmatic gas emissions helps seismologists identify volcanoes which are ready to erupt. Check out this animated video illustrating the process. [1:24]

In this video segment adapted from NOVA, scientist Mike Garcia draws lava samples at the foot of the active Kilauea volcano to see if it is related to its neighboring volcano, Mauna Loa.

In this video adapted from KUAC-TV and the Geophysical Institute at the University of Alaska, Fairbanks, satellite imagery and infrared cameras are used to study and predict eruptions of volcanoes in the Aleutian Islands, Alaska. [2:53]

Sing along to this music video to help learn vocabulary for the study of volcanoes, while watching volcanic eruptions at the same time. (Length: 1 min. 57 sec.)

Video of a volcanic eruption in Hawaii that demonstrates the phenomenon of 'dirty lightning' where bolts of lightning are generated in the ash clouds. (Length: 1 min. 5 sec.)

Watch as volcanoes erupt, magma explodes from craters and lava destroys a helpless car. [0:32]

This lesson introduces and explores the Pacific Ring of Fire. It is 1 of 3 in the series titled "Geology: Pacific Ring of Fire."

This lesson introduces the plate tectonics of the world and discusses their effects on the earth. It is 2 of 3 in the series titled "Geology: Plate Tectonics."

Volcanoes are one of the most powerful natural hazards on Earth, but supervolcanoes are so large that they have the ability to alter the world's climate. [5.33]

This HD dramatic video choreographed to powerful music introduces the viewer/student to Volcanoes. Take a look at the visual introduction to the power and wonder of Earth's volcanic nature. [3:34]

Brief video montage [0:32] of different volcanic eruptions around the world, demonstrating their immense, destructive power.

Video explores how volcanoes are formed and where they are located. [1:27]

If you look out your window, you'll probably notice a bunch of things; houses, streets, hopefully a tree. But beyond that you'll see things like mountains, rivers, volcanoes - well, hopefully not a volcano. These are landforms and they...

A video exploring all things volcanoes. Learn how they form and erupt. Also get information about the longest erupting volcano, Stromboli. [3:04]

A 145-million-year-old volcano covers an area the size of New Mexico. [5 min, 35 sec]

Video clip describes the origins of the Hawaiian Islands with suspicions that volcanoes caused their formation. [2:59]

Animation explores hotspot volcanism and offers a simple illustration of how this results in chains of volcanoes such as the Hawaiian Islands. [2:14]

What clues can be found to predict when a volcano will erupt? Take a look at this brief illustration. [0:52]

Probe into the technique used to measure ground deformation indicative of volcanic activity. Check out this quick clip illustrating the function of InSAR and how it helped identify activity in Oregon. [0:42]

This video discusses the geological features of convergent plate boundaries. [6:03]

The remnants of a supervolcano under Yellowstone National Park are on the rise -- though researchers say there's no cause for alarm.