Instructional Video
US Geological Survey

U.s. Geological Survey: Earthquakes: Directivity

9th - 10th
A quick animation showing directivity, the directional movement of the seismic energy between two stations.
Instructional Video
US Geological Survey

U.s. Geological Survey: Earthquakes: Elastic Rebound

9th - 10th
This captioned animation describes the elastic rebound effect, which happens as a result of an earthquake.