1. RAP 1. _____where two plates collide
2. _____forms from high temperature and low pressure
3. _____deepest part of the ocean floor
4. _____ lower mantle
5. _____daily rise and fall of Earth’s oceans

2. Plate Boundaries Key Questions
1. What are the features at a convergent boundary?
2. What are the features at a divergent boundary?
3. What are the features at a transform boundary?

3. Convergent Plate Boundary
Oceanic-Oceanic
Continental-Continental
Continental-Oceanic
Features:
Mountains
Trenches
Volcanoes

4. Continental-Oceanic Convergent Boundary
More dense Oceanic plate subducts (slides) below the Continental plate.
Features:
Trenches
Volcanoes
Mountains

5. Oceanic-Oceanic Convergent Boundary
Subduction
of the older more dense
Oceanic Plate
Forms a trench or
volcanic islands

6. Continental-Continental The plates buckle up and forms mountain ranges .

7. Features of Divergent Boundary:
Mid-Ocean Ridge
Rift Valleys
Volcanoes

8. Transform Boundaries
Earthquakes occur at transform boundaries.

9. World’s Largest Earthquake 9.5 Magnitude, Chile 1960
Edition
On May 22, 1960, a Mw 9.5 earthquake, the largest earthquake ever instrumentally recorded, occurred in southern Chile. The series of earthquakes that followed ravaged southern Chile and ruptured over a period of days a 1,000 km section of the fault, one of the longest ruptures ever reported. The number of fatalities associated with both the tsunami and the earthquake has been estimated to be between 490 and 5,700. Reportedly there were 3,000 injured, and initially there were 717 missing in Chile. The Chilean government estimated 2,000,000 people were left homeless and 58,622 houses were completely destroyed. Damage (including tsunami damage) was more than $500 million U.S. dollars. The main shock setup a series of seismic sea waves (tsunami) that not only was destructive along the coast of Chile, but which also caused numerous casualties and extensive property damage in Hawaii and Japan, and which was noticeable along shorelines throughout the Pacific Ocean area. There were several other geologic phenomena besides tsunamis associated with this event. Subsidence caused by the earthquake produced local flooding and permanently altered the shorelines of much of the area in Chile impacted by the earthquake. Landslides were common on Chilean hillsides. The Puyehue volcano erupted forty-seven hours after the main shock. It is only a matter of time until Chile once again has a "world-class" earthquake whose impact, like the 1960 Chile event, will be felt around the world.

10. World’s Largest Earthquake
9.5 Magnitude
Southern Chile 1960
Estimated 5,700 killed
3,000 injured
717 initially missing from Chile
2,000,000 people left homeless
58,622 houses completely destroyed

11. Transform Plate Boundary
Features:
Earthquakes
Faults

12. California San Andres Fault
Fault line: San Andres Fault
Transform Boundary

13. Fence line moved feet
1906
San Francisco Earthquake

14. California on 2 Tectonic Plates
Los Angeles on the Pacific Plate
Rest of USA on the North American Plate
Fault line: San Andres Fault
Transform Boundary