Quiz review Flashcards
Who was the one who suggested there was a continental drift?
Alfred Wegener
When the earth cracks 1/2 to 1 inch apart is called what?
It’s called an Earthquake
When one plate moves up and one plate moves down is called what?
It’s Called Subduction
When One plate goes on top of the other what’s it called?
Convergent Boundary
What are the 7 major plates around the world?
- African,
- Antarctic,
- Eurasian,
- Indo-Australian,
- North American,
- Pacific
- South American
What is the fault called?
San Andreas Fault
How long is the ring of fire?
40,000 km
How many earthquakes are happening at a given time?
10-20
What are the 3 types of plates Boundaries?
Converging (Collision)
Diverging ( Spreading)
Transforming (Sliding)
What is Convection Current?
A Convection current is when water is above two tectonic plates on the mantle so it starts to create a circular motion
What tectonic plate does the ring of fire surround?
It surrounds the Pacific Plate.
What 2 things saved the lives of many in Japan?
- Early Warnings
- Anti Earthquake Buildings
What is the Ring of Fire?
The Ring of fire in simple terms is where 75% of the world’s volcanoes and 90% of the world’s earthquakes are.
What Caused the 1964 Alaska Earthquake?
Subduction
What caused the Mount Saint Helens Eruption, 1980?
Subduction
