In this exercise, students will investigate the effects of earthquakes on Earth materials and on buildings. Introductory materials discuss seismic shaking (ground motion), material amplification by loose or...
This article describes the theory of plate tectonics and its relation to earthquakes and seismic zones. Materials include an overview of plate tectonics, a description of Earth's crustal plates and their motions, and...
This lesson uses interactive diagrams of ground shaking from the 1906 San Francisco Earthquake to teach students about the mechanics involved in the rupture of a fault and the propagation of seismic waves as an...
Not so long ago, people living near volcanoes had little that might help them to anticipate an eruption. A deep rumble, a puff of smoke, and ash might foreshadow a major volcanic event. Or a volcano might erupt with no...
This map of world seismicity illustrates earthquake data for the years 1991 through 1996. It is intended to provide a sense of the depth distribution of earthquakes. Plate boundaries are shown, along with diffuse...
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