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

Did you feel it? Multiple earthquakes shook the Bay Area Thursday. They were recorded near Hayward, the USGS reported.

From late July to October 2022, residents of the Manu'a Islands in American Samoa felt the earth shake several times a day, ...

Earthquakes can build mountains or tear a continent apart. The places where pieces of crust move against each other are called fault lines, and scientists monitor fault lines to measure earthquakes.