Chap 16 Flashcards
Earthquake
A trembling or shaking of the ground caused by sudden release of energy stored in the rocks beneath Earths surface
Energy is released in the form of seismic waves
Seismology
The study of earthquakes
Elastic rebound theory
A sudden release of strain progressively stored in rocks results in movement along a fault
Epicenter
Point on the surface of earth directly above earthquake surface
Intensity
A measure of the amount of damage an earthquake causes, which is a measure of an earthquakes effects on people and buildings
Magnitude
A measure of the amoint of enerrgy released in an earthquake
Richter scale
A numerical scale of earthquake magnitudes
Based on wave amplitude
Compensated on for distance from epicenter
Seismic gaps
Short and inactive segments along some long active failts