occur at all 3 plate margins
- caused by tension that builds up at plate boundries.
- Destructive: tension builds up when one plate gets stuck moving under the other.
- Constructive: tension builds up as plates move apart
- Conservative: tention builds up when plates get stuck when sliding past each other.
- plates eventually jerk past each other, sending out shock waves. these are the earthquakes.
- shock waves spread out…