Examine P and S waves moving through Earth's interior. - "This simulation shows the motion of P and S waves generated by a single earthquake. Examine how the waves change as they encounter different layers of Earth's interior. Identify areas on the surface that do not receive any waves — these areas are in the shadow zone of this simulated earthquake."
The Richter Scale Interactive - "This is an interactive demonstration of calculating the magnitude of an earthquake based on amplitude and S and P wave locations. Magnitude is a measure of the energy of an earthquake. The magnitude scale developed by Charles Richter assigns a numerical value for the magnitude of an earthquake based...
Mega-Quake - "What does it take to create a big earthquake? What does it mean for an earthquake to be magnitude 10.5? Is such an earthquake possible? To find out, try the Earthquake Simulator, where you can control the parameters of the fault and explore their effect on the amount of energy released during an earthquake!"...
Where was that earthquake? - "In this investigation, you'll see an example of how the World Series Earthquake's epicenter was located; then you'll use data from another earthquake in California to locate its epicenter."[site]
How are earthquakes related to plate tectonics? - "In this investigation, you'll explore the relationship between earthquakes and plate tectonic boundaries. You'll evaluate cities across the globe to identify those that might be susceptible to earthquakes.[site]
USGS: Online Word Search- General Earthquake Terms - Learn all the terms related to earthquakes. "The words in the puzzle may be hidden horizontally, vertically, diagonally, forward, or backward. To circle a discovered word, mouse-click on one end of the word and mouse-drag to the other end of the word. Once a word is found, it will be taken off the list."...
USGS: Online Word Search - Magnitude - This online word search uses terms related to earthquakes and magnitude. To circle a discovered word, mouse-click on one end of the word and mouse-drag to the other end of the word. Once a word is found, it will be taken off the list.
USGS: Animations for Earthquake Terms and Concepts - Provided here are a list of terms and concepts with explanations, and in each case there is an animation to demonstrate the earthquake term or concept.
Ayiti: The Cost of Life - "What is it like to live in poverty, struggling every day to stay healthy, keep out of debt, and get educated?" [site] Play this game and try to help a family of five in Haiti survive.
Earthquakes 101 - When the trembling stops, the disaster is only beginning. This video from National Geographic uses archived images from previous earthquakes to explain how earthquakes happen and why they happen in certain locations more frequently than others.
The Tech Earthquakes - This sites covers the basics of earthquakes, siesmographs, plate tectonics, faults, waves, seismograms, applications, inside the earth, history and a section on earthquake safety.
MSNBC: What Causes Earthquakes - View this Flash demonstration of what causes earthquakes. Click on the radio buttons to see the various zones, faults, plates, ridges, volcanic areas, etc.
Seismic Waves Training Simulation - "What happens to the ground during an earthquake? Find out by creating your own earthquake using this interactive 3D simulation. An actual earthquake will always create Primary, Secondary, and Surface waves, using this 3D simulation students can isolate waves to understand the different types of seismic...
Google Images of Port-au-Prince - Google Maps has updated the satellite images of Port-au-Prince and now has hi-res images of the city taken on Jan. 17, 5 days after the earthquake.
Haiti: A country of constant crisis and sorrow - The Associated Press has completed a comprehensive web site about the Haitian earthquake. This site includes demographic information, satellite photographs, a timeline, and a gallery of sights and sounds. All parts of the site are interactive.
Stop Disasters! - This is a disaster simulation game from the UN and the International Strategy for Disaster Reduction. By developing the area and implemented key strategies you can save a community from a wildfire, tsunami, hurricane or earthquake.
Forces of Nature - From the menu, choose a force - hurricanes, tornados, cearthquakes, and volcanoes. Learn more about about each of these forces and then see what happens when you create your own.
Anatomy of an Earthquake - "Journey below the earth's surface to discover how shifts in geologic plates set off earthquakes." (site) See an animation showing a rift valley, sea spreading, and mountain building.
Plate Tectonics - This wonderful and informative video comes from the National Oceanic and Atmospheric Administration. Learn more about the different plates that cover the Earth and how they react to each other.
Mountain Maker, Earth Shaker - This activity enables site visitors to manipulate plate tectonics. In addition, there are various relevant links to other information about plate tectonics on this page.
Discovery Channel: Make a Quake - As part of the website on the 1906 earthquake, the Discovery Channel provides this interactive where you can make an earthquake and see the effects on a building, given conditions that you pre-set. [advertising around the perimeter of the interactive].
