US Geological Survey
U.s. Geological Survey: Earthquakes: Shadow Zone
An animation showing the area of the Earth that is not detectable by seismographs, known as the shadow zone.
US Geological Survey
U.s. Geological Survey: Earthquakes: Strike Slip Fault
An animated illustration of a strike-slip fault. It shows the vertical fracture where the blocks of Earth have moved horizontally.
US Geological Survey
U.s. Geological Survey: Earthquakes: Divergent Boundary
Nice, visual animation showing what happens under the Earth's surface at a divergent boundary.
US Geological Survey
U.s. Geological Survey: Earthquakes: Elastic Rebound
This captioned animation describes the elastic rebound effect, which happens as a result of an earthquake.