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Earthquake Travel Time Information and Calculator
Use a Calculator and generate a listing of phase arrival times at YOUR seismic station
http: //neic.usgs.gov/neis/travel_times/ -
Seismographs
Throw a rock into a pond or lake and watch the waves rippling out in all directions from the point of impact. Just as this impact sets waves in motion on a quiet pond, so an earthquake generates seismic waves that radiate out through the Earth
http: //earthquake.usgs.gov/learning/topics/seismol... -
Welcome to Virtual Earthquake
Virtual Earthquake is an interactive Web-based activity designed to introduce you to the concepts of how an earthquake EPICENTER is located and how the RICHTER MAGNITUDE of an earthquake is determined.
http: //nemo.sciencecourseware.org/VirtualEarthquak...