1. Warm-up Week 12 Day 2
Explain the difference between a seismograph and a seismogram.
Order the three kinds of seismic waves from fastest to slowest.
An Earthquake’s magnitude is a measure of the size of it’s S_________ W_________.

2. “Earthquake Destruction”

3. Q: What affects the amount of Destruction?
How big the seismic waves are.
How long it lasts.
Composition of ground.
Design of buildings.

4. Hazard - Liquefaction
Niigata, Japan 1964

5. Hazard – Ground Shaking
Northridge, CA 1994
Loma Prieta, CA 1989

6. Hazard – Surface Faulting
Landers, CA 1992

7. Hazard - Landslides Q: What type of soil would be the safest during
a major earthquake?
a.) Loose Soil
b.) Steep slopes
c.) Granite bedrock
d.) Area with structures built on a landfill
Turnnagin Heights,Alaska,1964

8. Hazard – Fires
Loma Prieta, CA 1989

9. Hazard – Tsunami:
Earthquake under ocean floor.

10. Predicting Earthquakes?
Goal:
EARLY WARNING.
Long range forecast…
Idea that earthquakes are repetitive.
Success?
NO. 
“Seismic gap”
Place on a fault that is “overdo.”

11. Chance of Earthquakes Near Us…

12. Earth’s Layered Structure…

13. Crust & Mantle Crust: Mantle Rocky, top layer Divided! Solid, rocky
Oceanic crust
Continental crust
Mantle
Solid, rocky

14. The Core Core: Divided! High Concentration of Metals Outer = Liquid
Inner = Solid
Deeper = ↑ Pressure.

15. Earth’s Layered Structure.

16. STUDY GUIDE Review Contest!
Research Phase (10pts)
Break into assigned teams
15 min to work together to EACH complete the study guide.
Write answers in complete sentences.
Everyone must have a copy.
Competition Phase…

17. Competition Phase NO TIES FOR 1st or 2nd!
Write your team number and all your names on a sheet of paper for keeping score.
Whiteboards.
Choose a writer.
Write answer in a sentence
Work quietly…because…
1st = 3 extra credit points on test!
2nd = 2 pts
3rd = 1 pts
NO TIES FOR 1st or 2nd!