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Earthquakes and Plate Tectonics
Guide picks
The theory of plate teconics explains much about the history of the earth and its seismic and earthquake activity.

Earthquake Lists
About.com's Geology site offers a plethora of fantastic resources about earthquakes, neatly organized for your browsing pleasure.

Modified Mercalli Scale
From your About.com Guide, the scale used to measure the intensity of earthquakes.

Measuring the Big One
From the About.com Guide to Geology, a great article about magnitude and earthquakes.

Tangshan: The Deadliest Earthquake
At 3:42 a.m. on July 28, 1976, a magnitude 7.8 earthquake hit the sleeping city of Tangshan, killing over 240,000 people - making it the deadliest earthquake of the twentieth century. The About Guide to 20th Century History has the story.

Canadian National Earthquake Hazards Program
The home page of the official Canadian earthquake research and reporting agency. Includes a plethora of resources and information.

Current Earthquake Maps
Seventeen maps showing recent seismic activity around the world.

Earth's Interior and Plate Tectonics
A nice overview of the interior layers of the earth and how they relate to plate tectonics.

Earthquake Hazards Program
This site is the United States Geological Survey's earthquake portal for all things earthquake. Young people and adults will find a plethora of fantastic information about recent quakes and how plate tectonics works.

Earthquake Hazards Program - Northern California
The U.S. Geological Survey maintains this excellent site which includes information about recent earthquakes and earthquake preparedness.

Every Place has its Faults
This site shows and describes different types of faults. The animated graphics will entertain and educate you about normal faults, strike slip faults and more.

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