Earthquakes
by Lauren Snyder
1. Moment-Magnitude Scale
1.1. More Reliable than Richter Scale
2. Convection Currents
2.1. In mantle, cause plate movement
3. Asthenosphere
3.1. Another name for Earth's crust
4. Boundaries
4.1. Lines where tectonic plates meet
5. Tension
6. Tectonic Plates
6.1. Are Earth's Crust
6.2. Float on the mantle
7. Landforms
7.1. Mountains
7.2. Volcanoes
7.3. Valleys
8. Tremors
9. Divergent Plate Boundary
9.1. Apart, dividing rift that have a physical appearance of a rift boundary or seafloor spreading
10. Transform Plate Boundary
10.1. This boundary is where plates are sliding past one another. An example is the San Andreas fault line in California, US
11. Convergent Plate Boundary
11.1. This boundary is where plates collide with each other creating mountains.
12. Magnitude
12.1. How strong the earthquake is
13. Cause these to run through the ground
14. occur along
15. are caused by
16. occur in the
17. How strong an earthquake is
18. occur because of the movement of
19. Types of Plate Boundaries
20. Epicenter
20.1. Directly above focus
21. Focus
21.1. Where the earthquake begins below ground
22. Plate Margins
22.1. Destructive
22.1.1. Where on plate goes under another
22.2. Constructive
22.2.1. When two plates float apart
22.3. Collision
22.3.1. When two plates crush against each other
22.4. Conservative
22.4.1. When two plates slide past each otger