John Vidale and his team at the Pacific Northwest Seismic Network are monitoring ground motion across Washington State and Oregon to prepare residents for one of the most powerful natural hazards on the planet--a magnitude 9 "megathrust"...

Experts warn that an offshore quake powerful enough to discharge a tsunami could hit the U.S. West Coast anytime. QUEST Northwest talks with geologists and seismologists about cutting edge research in earthquake prediction, and what it...

Brief animation shows friction at an asperity along a right-lateral fault and explains why faults don't keep sliding past each other. [0:13]

Animation shows the buildup of stress along the margin of two stuck plates that are trying to slide past one another deforming rock. [33]

A science teacher demonstrates a number of simple models that teachers can use, or have students make, when teaching about plate tectonics and earthquakes. [5:38]

This video focuses on the Norse Apocolypse, Ragnarok. Ragnarok! It's the end of the world, Norse style. It's got everything you want in an apocalypse. Earthquakes, destruction, armies of the dead, a giant evil wolf, giants with flaming...

Why do some buildings fall in earthquakes? Animated video addresses the key points of frequency, period, and resonance. All buildings have a natural, period, or resonance, which is the number of seconds it takes for the building to...

Animation explores how 3 buildings engineered equally on different bedrock will react to an earthquake. [1:25]

Animation illustrates the buildup and release of strain in locked and slow slip zones. [0:28]

This animation shows that GPS can record the movement of the leading edge of the overlying continental plate in a subduction zone. [0:48]

Animation shows how land jumps in an earthquake and how GPS can record the movement. [0:49]

What causes the earthquakes that occur frequently on the Big Island of Hawaii? This animation offers three general sources for the earthquakes. [3:20]

Utilize this video to visualize seismicity and volcanic activity in space and time. [1:06]

As seismic waves from earthquakes pass through the planet, their patterns can reveal hidden dynamics-hotspots, deep-diving rock, melting mantle-in Earth's interior. An array of seismometers that's being installed across the United States...

An asperity is an area on a fault that is stuck or locked. This brief clip illustrates asperities along a strike-slip fault plane. [0:28]

The sad truth is that earthquakes are inevitable, but there are ways to lessen their devastation. Watch this fascinating video on the deadliest earthquakes. Follow a team of US geologists as they try to determine exactly what happened in...

This captioned animation describes the elastic rebound effect, which happens as a result of an earthquake.

Two animated GIFs of a reverse fault and station seismogram teachers can use for a presentation.

Understand the three factors that affect earthquake intensity: magnitude, distance from the center, and Local rock and soil conditions. [8:15]

This activity uses the Earthquake Machine, a mechanical model that illustrates the earthquake cycle, as a tool to investigate the behavior of fault systems.

Learn how foreshocks and aftershocks are related to the main shocks of earthquakes. [6:32]

This demonstration shows that rocks are elastic by squeezing a slit core of solid rock. Energy is stored as potential energy while the rock is squeezed. [1:22]

See a demonstration of an earthquake slip-stick behavior in the classroom. [6:22]

These visualizations, using actual data, show how the ground moves as seismic waves sweep across about 400 earthquake recording stations in EarthScope's Transportable Array. [6:34]