Links

http://cse.ssl.berkeley.edu/lessons/indiv/davis/hs/QuakesEng3.html
 ( What is Earthquake - Definitions and Glossary - Big Quake or Small Quake? The Seismograph - Can You Read a Quake? - The Richter and Mercali Scales - Different Ways to Shake: Types of seismic waves - How Far Away? - Where Did the Quake Hit? - Shadows from the Core: Disappearing Waves - Tomorrow's Earthquake - Where to Go from Here...- Major Recorded Earthquakes )

http://vcourseware3.calstatela.edu/VirtualEarthquake/VQuakeExecute.html
 ( What is Earthquake - What are earthquake (Seismic) Waves? - What's a Seismogram? - How is an Earthquake's Epicenter Located? )

http://www.thetech.org/exhibits/online/quakes/
 (What's Shakin' - Just the Facts - What is a seismograph ? - A long , long time ago - 19 th Century Models - Getting Electric - Seismographs of Today - Networking Information - Floating Plates - Shifting and Sliding - What a Jerk - It's not your Fault - Under Stress - How to Release Stress - Spreading to Motion - Pick A Fault Any Fault - A Drop of Water - Around World - The Slinky and The Rope - A Shaking Record - Location The Shakin -Measuring The Quake - What Did You Feel - Dr. Quake - The Bigger The Better - And That's Not All - Atomic Shakes - Earths Seismic X Ray - Layer of The Earth - The State of Quakes - History and Tehcnology )

http://pubs.usgs.gov/gip/earthq4/severitygip.html
 (The Severity of an Earthquake - The Richter Magnitude Scale - The Modified Mercalli Intensity Scale )

http://cires.colorado.edu/people/jones.craig/WebEQEur.html 
(Links for large 1999-2002 earthquakes - Belgium - Czech Republic - France - Germany - Great Britain - Greece - Iceland - Italy - Republic of Macedonia - Norway (and Scandinavia) - Romania - Spain - Switzerland - Yugoslavia - Middle East - Iran - Israel - Turkey )