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...

See how travel-time curves are created. [2:52]

This animation uses a gridded sphere is to show that: 1) the seismic stations don't need to be lined up longitudinally to create travel-time curves, as they appear in the first animation, and 2) a single station records widely separated...

This animation uses a gridded sphere is to show a single station recording five equidistant earthquakes. [0:44]

See what seismograms look like at increasing distances from the epicenter. [0:21]

This presentation and associated activity introduces students to both the concepts of processing marine seismic data as well a providing an introduction to PROMAX software.

This lesson shows students that math is used in the field of seismology. It is 3 of 5 in the series titled "Math in Seismology."

This lesson shows students that math is used in the field of seismology. It is 1 of 5 in the series titled "Math in Seismology."