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onSite Newsletters

Read EarthScope's onSite newsletters to keep up to date on what we are doing and learning from our instruments.

Where Can I Learn More About USArray?

Two page publication (4MB) that features locations of the web where you can find information about specific USArray topics.

Seismic Tomography

Four-page handout (3.5 MB PDF) describing how seismic tomography is used to determine Earth structure

Animations

Seismic Wavefield Animations

Link to Animations

Charles Ammon, a professor at Penn State University, has developed animations of real data showing how seismic waves sweep the transportable array of seismometers. Watch how earthquake waves originating from the US and around the world cause the ground at each seismometer to slightly shift up and down.

Video