Download Volcanoes in California Internet Activity

Name
Volcanoes in California Internet Activity
In this activity you will find information on the volcanoes and volcanic activity in
California. Answer the following questions below in complete sentences for full credit.
Click on
http://vulcan.wr.usgs.gov/Volcanoes/Cascades/volcanoes_cascade_range.html#lassen or
you can navigate through the http://vulcan.wr.usgs.gov/ to answer these questions.
1. What mountain range is Mt. Lassen and Mt. Shasta located?
2. When was the last time Mt. Lassen erupted and how long did it erupt for?
3. How tall is Lassen Peak and how long has it been active?
4. During the most recent eruption name 3 things that were caused by the eruption.
Click on the Eruptions of Lassen Peak link on the right.
5. What differences do you notice in the picture under the “Related Items of
Interest” link?
Scroll up to the Mt. Shasta section.
6. When was the last time Mt. Shasta was active?
7. How tall is Mt. Shasta?
8. How often has the volcano erupted over the past 10,000 years?
9. What does Mt. Shasta have on its mountain that is the largest in California and
what is its name?
Click on the Long Valley observatory link at the bottom of http://vulcan.wr.usgs.gov/
10. What mountain range would you find the Long Valley Caldera?
11. How big is the Long Valley Caldera?
12. When was the last time it erupted?
13. When did the caldera form?
14. How long has the area around the Long Valley Caldera been active?
15. When was the last earthquake swarm, which scientists thought would trigger an
eruption?
16. Near what lake can you find dead trees near Mammoth Mountain?
17. What is causing the trees to die?
18. What are common precursors to volcanic eruptions?
19. What is the resurgent dome and where is it located in the caldera?
20. What is the long term outlook of the caldera in terms of more eruptions?
21. What are the odds of an eruption happening in the Caldera?
22. What can we expect if an eruption does occur at the Long Valley Caldera?