An earthquake with a magnitude of 7.0 centered off Peru's sparsely populated southwestern coast shook much of the nation Wednesday but only minor damage and light injuries were reported.
8 slide Powerpoint presentation (zipped ppt/animation 19.2 MB / pdf 1.43 MB)
Tectonic Setting and Wave Propagation (mp4 5.89 MB / YouTube)
USArray Ground Motion Visualization (mpeg-4 11.4 MB / More Info)
Presentación en Español (zipped ppt 2.1 MB / pdf 1.44 MB)