This animation shows the buildup of stress along the margin of two stuck plates that are trying to slide past one another. [34]

A USGS seismologist demonstrates how to use spaghetti noodles and raisins to model building resonance during earthquake ground shaking. [1:21]

A cross section of the shallow crust in the Basin & Range. The earthquake produces seismic waves that bump an array of seismic stations. [0:30]

After an earthquake, Andrija Mohorovicic was the first one to realize that there are distinct layers to the earth. This video explains the seismic activity that can occur after earthquakes that led to this discovery. [6:12]

Narrated animation explaining the forces inside the Earth that can lead to earthquakes. (Length: 1 min. 39 sec.)

Watch a video with a student explaining the five steps on how a tsunami forms. [1:35]

An audio lecture exploring how a powerful earthquake in Chile may have shifted the Earth's axis and changed the length of a day. [12:02]

An animation demonstrating how an asperity, the part of a fault that is stuck, leads to an earthquake.

Inside the world's longest self-anchored suspension bridge being built in quake-prone San Francisco Bay.

See a quick animation of a reverse fault.