Lecture 7: Plate tecs and hazards 2 Flashcards
1
Q
What are the four main hazards as a result of plate tectonics?
A
- Tectonic hazards
- Volcanic hazards
- Tsunami hazards
- Landslide hazards
2
Q
What can occur in a subduction earthquake?
A
- Subsidence during earthquake
- uplift before earthquake
-sinks during earthquake - fills with sediments post earthquake
3
Q
Are faults always straight?
A
- Faults are not always straight. Bends in the fault cause complexities for plate motion: mountains and/or valleys can develop
- The Big Bend of the Alpine Fault is one of the better known example in the world
- Multi hazards are a consequence
4
Q
What plate boundary produces the highest amount of hazards?
A
- Convergent plate boundaries produce the greatest number of hazards
