Explore how North America is changing as its deep cratonic root thins and pieces are dripping into the Earth's mantle.

Two separate earthquakes were reported near the Bay Area of California on Tuesday, according to the United States Geological Survey.

Forecasters are warning of potentially deadly flash flooding and strong tornadoes as more rounds of thunderstorms are poised to strike parts of the Midwest and South. The potent storm system will ...

More than 2,700 lives have been lost and thousands more injured or missing in the aftermath of a powerful 7.7-magnitude ...