If you are in a building during an earthquake, the way the building is constructed and your position in the building can have an impact on the shaking you feel. This means you may experience an earthquake differently from someone only a few buildings away.
Why is it important to learn about how human-made structures fare during an earthquake? More than 143 million people are exposed to potential earthquake hazards in the U.S. that could cost thousands of lives and billions of dollars in damage. An important tool for
mitigation is the ShakeAlert® Earthquake Early Warning System for the West
Coast of the United States, which detects significant earthquakes quickly so
that alerts can be delivered to people and automated systems often before
strong shaking arrives.