1. Earthquakes

3. Two types of crust “float” on the upper mantle: oceanic crust (heavier, sinks lower) continental crust (lighter, floats higher)

4. Three types of plate convergence oceanic – continental oceanic – oceanic continental - continental

5. Oceanic – continental plate convergence Nazca plate – South America plate

6. Oceanic – oceanic plate convergence New Hebrides Trench near Vanuatu

7. Continental – continental plate convergence India/Eurasia plate collision (forms Himalayan Mountains)

9. Earthquake Motion

16. Historical seismic activity in Canada

18. 1906 San Francisco Earthquake

22. Mercalli Richter

23. 1964 Alaska earthquake damage map: modified Mercalli scale III - IV V VI VII VIII - X

24. Liquefaction and slumping Anchorage, Alaska - 1964

27. Earthquake-proof buildings

29. Is a major earthquake in California, Alaska or Japan of any concern thousands of kilometers away, in Hawaii?

30. Tsunami (seismic wave)

31. The power of a tsunami