Earthquake lesson 1 Flashcards
the vibration of earth caused by the rapid release of energy
Earthquake
A broken segment of a litosphere
Plate
Two plates collides with each other
Convergent
two plates moving away
Divergent
Two plates slide past with each other
Transform
The origin of the earthquake
Focus
Force acting on some area
Stress
Type of stress that pulls the rock apart
Tensional stress
Type of stress that squeezes the rock
Compressional stress
Type of stress that moves horizontally
Shear stress
A break or fracture on a rock
Fault
A fault that has a possibility to move again in the future
Active fault
No fault movement after past million years
Inactiver fault
0-70km focus earthquake
Shallow focus earthquake
70 - 700km earthquake
Deep focus earthquake