PDF version
This investigation will help you to:
How do volcanic flows affect communities (relate to the volcanoes in or near California).
- Map of Mount Shasta debris avalanche deposit.
- Fact sheet describing how scientists are planning emergency procedures that can help ensure public safety if case of eruptions in the Long Valley – Mono Lake area volcanoes.
Visit these sites for information about the Columbia River basalt group in the northwest.
- Map of the Pacific Northwest showing the Cascade Range and Columbia Plateau.
- Map of the Columbia River Flood basalts.
- Map of Columbia plateau features.
Volcano World - Lava
View a slide show of different forms of lava with color photos and descriptions of each type. Site also includes a list of references and activities about lava.
Magma, Lava, Lava Flows, etc.
Learn more background information about lava and the hazards associated with lava flows.
Types of Lava: Teacher Pages for Exploring the Environment - Volcanoes
In addition to a general overview, the description focuses on how silica and water content varies in different types of lava.
Pyroclastic Flows and Pyroclastic Surges
Read about how pyroclastic flows and surges form, how those two are different, and the hazards they pose to people.
Pyroclastic Flows - Volcano Information Center
A similar type of overview of pyroclastic flows. However, site also includes a discussion about how geologists discovered pyroclastic flows as well as a list of journal and book references about pyroclastic flows.
Mudflows, Debris Flows, and Lahars
Site gives a detailed introduction to lahars, describing what initiates a lahar flow, what is the composition of a lahar flow, and cites several historic examples of lahar flows associated with volcanic eruptions.
Lahars - Volcano Information Center
Read another good overview of lahars along with a list of journal references to investigate further.
USGS Hawaiian Volcano Observatory
Useful information about Hawaiian volcanoes.
NOAA - VENTS Program
Information about black smokers and activity along mid-ocean ridges.
Mt. Rainier, Washington, USGS
Information on the eruptions of Mt. Rainier.
Barbdarbunga/Grimsvotn Volcanoes Iceland
Includes location data and reports on volcano activity.