Web site monitors earthquake faults around the world and offers tips on how to prepare and react

(NBC) - The site is from the U.S. Geological Survey's Earthquake Hazards Program which notes that earthquakes pose significant risk to 75 million Americans in 39 States.

Maps, instant feeds, and the latest in seismographic displays offer real-time reporting of earthquakes, population density in the areas they occur and even displays of shaking intensity.

Earthquakes can happen across the country and the site points out they do, with surprising regularity.

The site tracks them all, animating them on large maps that measure the thousands of quakes recorded in a typical week.

There are detailed instructions on how to be prepared for an earthquake, what to do during and after one and what are the probabilities that a major quake will occur in a large population center.

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