Earthquake: A sudden shake that causes destruction and make sudden movements to the Crust and Volcanic Action.
Elastic Rebound: A geologic theory where a rock loses its deformity.
Focus: The location on Earth where the first motion of an Earthquake occurs.
Epicenter: The point on Earth that is above the Focus.
Seismology: The study of Earthquakes.
Seismograph: A tracing of an Earthquake's motion.
Magnitude: The measuring of Wavelengths.
Intensity: The amount of damage caused by Earthquakes.
Tsunami: A giant ocean wave that forms after a Volcanic Eruption, Earthquakes, or Land Slides.
Seismic Gap: An area along a fault where few earthquakes happened recently but worse earthquakes happened before in the past.