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Wow! look what I won at Virtual Earthquake!

This great site teaches you about how earthquakes are located using seismic waves, and how their magniude can be calculated.

Receive a Commendation if you can prove that you are a Virtual Seismologist too!!

The following text has been reproduced from the site:
Virtual Earthquake will show you the recordings of an earthquake's seismic waves detected by instruments far away from the earthquake. The instrument recording the seismic waves is called a seismograph and the recording is a seismogram. The point of origin of an earthquake is called its focus and the point on the earth's surface directly above the focus is the epicenter. You are to locate the epicenter of an earthquake by making simple measurments on three seismograms that will be sent to you by the Virtual Earthquake program. Additionally, you will be required to determine the Richter Magnitude of that quake from the same recordings. Richter Magnitude is an estimate of the amount of energy released during and earthquake.

Copyright © 1996, 1999 Geology Labs On-Line Gary Novak, Department of Geological Sciences California State University, Los Angeles, CA. 90032-8201