Discover interesting facts about how big earthquakes can get, why earthquakes happen, and why they're so hard to predict.

As more space junk is falling to Earth uncontrolled, scientists are using seismometers to track the debris.

and other objects that have the potential to fall on you. Earthquake reported in New Jersey, tremors felt in Pennsylvania The CDC says that if you are inside a building during an earthquake ...

An earthquake would have been ... been no reports yet of people being hit by falling debris. Thousands of rocket bodies are in orbit. Many of these objects or their components will reenter ...