Discovering Plate Boundaries is based on 5 world maps containing earthquake, volcano, topography, satellite gravity, and seafloor age data. The novel aspect of the exercise is the "jigsaw" manner in which student groups access the maps and use them to discover, classify, and describe plate boundary types. The exercise is based only on observation and description, which makes it useful at a wide variety ... Full description.

This table provides information on all earthquakes in the California-Nevada area, as shown on the U.S. Geological Survey's real-time earthquake map. The table consists of all earthquakes cataloged in the last week (168 hours). The top three magnitude categories above magnitude 3 are in highlighted in red. Information provided includes magnitude, date and time, latitude and longitude, depth, and location. ... Full description.

This report decribes research being carried out in Parkfield, California whose purpose is to better understand the physics of earthquakes: what actually happens on the fault and in the surrounding region before, during and after an earthquake. Ultimately, scientists hope to better understand the earthquake process and, if possible, to provide a scientific basis for earthquake prediction. Topics include ... Full description.

This interactive map shows the locations of all earthquakes in the California-Nevada area for the past week. The map is subdivided into 2x2 degree sheets that can be accessed by clicking on the desired area. Locations of major fault systems are shown, and earthquake locations are color-coded to indicate whether they occurred in the past hour, day, or week. The magnitude of each earthquake is keyed ... Full description.

This page offers two pieces of software that produce visualizations of seismicity, volcanic activity and wave propagation. The Seismic Waves program displays waves propagating out from the epicenter simultaneously on three-dimensional and cross-sectional views of the earth. These two views are synchronized with actual event waveforms so that as a particular phase arrives at a seismic station, one ... Full description.