A moderately strong, 5.0-magnitude earthquake struck in Texas on Friday, according to the United States Geological Survey.

Radioactive materials are found naturally in the Earth. But even so, saying an area is radioactive can conjure up images of ...

A strong, 6.0-magnitude earthquake struck in Ethiopia on Friday, according to the United States Geological Survey. The ...

Quakes recorded for the first time inside Greenland's biggest frozen river, the Northeast Greenland Ice Stream, suggest this ...

On Ellesmere Island in the Arctic, on one of the northernmost points of land in the world, sits a small permanent seismic ...