This illustrated fact sheet shows how S and P waves each travel at varying speeds and therefore arrive at seismic stations at different times.

Students learn how engineers characterize earthquakes through seismic data. Acting as engineers, they use real-world seismograph data to locate earthquake epicenters via triangulation and determine earthquake magnitudes.

The basics of earthquake science including factual information about how and why they happen. Also includes some hands-on activities and experiments for students.

Looking for the epicenter of an earthquake and measuring the magnitude of waves are goals for students in this lesson plan for intermediate to middle school students. Students get to analyze the P and S waves.

Information about earthquakes including causes and how they are measured.

An activity-based program designed to introduce the concepts of how an earthquake epicenter is located and how the Richter magnitude of an earthquake is determined.

A classroom simulation modeling how earthquake waves travel through Earth at different speeds. A graph is constructed to demonstrate the relationship between the distance and time of travel of seismic waves, and then used to locate the...

Basic information about the 1857 "Fort Tejon" Earthquake, along with comparison to other quakes, location of the epicenter, and faults involved.

Time, date, and size of the Alaskan 1964 earthquake. Photos of the damage caused by the quake and the tsunami, location of the epicenter, and a description of the landslides.

Eight seismograms and instructions are provided to assist in the learning of how to locate the epicenter of an earthquake.

A basic overview of the earth's mantle, crust, inner core, and outer core. Also discusses how earthquake waves travel through the Earth.

Seismic waves are studied to better understand the ground beneath us, the layers of Earth and points of interest for earthquakes. Better understand the types of waves, what substances they may travel through and how, and gain a clearer...

[Free Registration/Login may be required to access all resource tools.] Earth's tectonic plates and how they move.