110 likes | 337 Views
Earthquakes: Faults and Waves. Sarah Bennek Grade 9. Objectives. To be able to describe what happens to the earth at normal, reverse and strike slip faults. To be able to compare and contrast P-waves, S-waves, R-waves, and L-waves. Location of Earthquakes. Earthquakes happen along faults
E N D
Earthquakes:Faults and Waves Sarah Bennek Grade 9
Objectives • To be able to describe what happens to the earth at normal, reverse and strike slip faults. • To be able to compare and contrast P-waves, S-waves, R-waves, and L-waves.
Location of Earthquakes • Earthquakes happen along faults • Along plate boundaries Picture: “Earthquake Epicenters and Plate Boundaries.” Map. 10 Oct. 2007. <www.geo.wvu.edu/~wilson/Geol1/lec39/lec399.htm>.
Normal Fault • Hanging wall (above slope) moves down slope • Crust stretches Picture: “Earthquakes.” Weather Wiz Kids. 10 Oct. 2007. <www.weatherwizkids.com/earthquake1.htm>.
Reverse Fault • Hanging Wall moves upslope • Crust compresses Picture: “Earthquakes.” Weather Wiz Kids. 10 Oct. 2007. <www.weatherwizkids.com/earthquake1.htm>.
Strike Slip Fault • No movement up or down • Slide past each other laterally Picture: “Earthquakes.” Weather Wiz Kids. 10 Oct. 2007. <www.weatherwizkids.com/earthquake1.htm>.
What Type of Fault? Picture: “Week 9: Earth’s Structure and Earth’s Interior.” 10 Oct. 2007. <www.indiana.edu/~g103/G103/week9/wk9.html>.
Seismic Waves • The way the energy from the earthquake travels • Body Waves • Surface Waves • Compressional Waves • Shear Waves
Compressional or Shear Waves? Picture: “Earthquakes: Seismic Waves.” 10 Oct. 2007. <www.cdli.ca/CITE/earth_waves.htm >. Picture: “Page 2: Wave Motion.” 10 Oct. 2007. <ffden-2.phys.uaf.edu/.../page2.htm>.
Slides and notes text citation: Marshak, Stephan. Essentials of Geology. New York: W. W. Norton and Company, 2004. TeacherWeb Website: http://www.teacherweb.com/MN/UMDEduc5413/MissBennek/h0.stm