1. Earthquakes, Volcanoes, and Landslides

2. Earthquakes http://youtu.be/cavq2HFBa-Uhttp://youtu.be/cavq2HFBa-U (National Geographic Video - 2:58) Shaking of the land when Earth’s plates move. http://www.classzone.com/books/earth_scien ce/terc/content/visualizations/es0804/es0804 page01.cfm?chapter_no=visualization Plate movement animations:

5. San Andreas Fault

7. Volcanoes

8. http://mail.colonial.net/~hkaiter/volcanoes.html http://youtu.be/uZp1dNybgfchttp://youtu.be/uZp1dNybgfc (National Geographic - 3:05) http://youtu.be/4aYQixhdWY4http://youtu.be/4aYQixhdWY4 (Top 10 Active Volcanoes – 2:13)

9. Landslide The term "landslide" describes a wide variety of processes that result in the downward and outward movement of slope-forming materials including rock, soil, artificial fill, or a combination of these. The materials may move by falling, toppling, sliding, spreading, or flowing.rocksoil

10. Landslide La Conchita, coastal area of southern California. This landslide and earthflow occurred in the spring of 1995. People were evacuated and the houses nearest the slide were completely destroyed. This is a typical type of landslide. Photo by R.L. Schuster, U.S. Geological Survey.

11. Landslide Debris litters a crumbled road after landslides destroyed hundreds of homes in the Kupini and Valle de las Flores neighborhoods in La Paz (map), Bolivia, in 2011. According to the Associated Press, thousands of people were affected by the landslides, which had been triggered by heavy rains.La Paz (map)Bolivia

12. Landslide The slope on a hill where a landslide occurred in Nova Friburgo, 130 km north of Rio de Janeiro, Brazil, on January 13, 2011. (Shana Reis/AFP/Getty Images) http://www.boston.com/bigpicture/2011/01/landslides_in_brazil.html

13. Aerial view of a house at risk following landslides in the locality of Poco Fundo, an isolated area near Petropolis, Brazil on January 18, 2011. (VANDERLEI ALMEIDA/AFP/Getty Images) http://www.boston.com/bigpicture/2011/01/landslides_in_brazil.html http://www.boston.com/bigpicture/2011/01/landslides_in_brazil.html

14. Aerial view of an isolated area severely hit by landslides near Teresopolis, some 100 km from Rio de Janeiro, Brazil, on January 18, 2011. (VANDERLEI ALMEIDA/AFP/Getty Images) http://www.boston.com/bigpicture/2011/01/landslides_in_brazil.html http://www.boston.com/bigpicture/2011/01/landslides_in_brazil.html

15. Slopes covered by mud are seen after landslides in Nova Friburgo, Brazil on Monday, Jan. 17, 2011. (AP Photo/Felipe Dana) http://www.boston.com/bigpicture/2011/01/landslides_in_brazil.html

16. People flee a landslide on a speed boat as a result of aftershocks from an earthquake in Yingxiu, Sichuan Province, China. http://www.telegraph.co.uk/news/1993 634/China-earthquake-fleeing-a- landslide.html

17. Landslide (Mudslide) Mudflow covering Washington State Route 504, following the eruption of Mount St. Helens. USGS Photograph taken July 5, 1980, by Robert Schuster.

18. Landslide Videos http://youtu.be/pCMMwQmUjHIhttp://youtu.be/pCMMwQmUjHI (Landslide in California) http://youtu.be/mknStAMia0Qhttp://youtu.be/mknStAMia0Q (National Geographic Video - 3:47)