The USGS publishes a geological map that reveals the underground layers of the U.S. and supports environmental education and ...

In keeping with rapid demand, the USGS has posted new US Topo quadrangles covering Colorado (1,794 maps) and Minnesota (1,689). These new quads replace the first edition US Topo maps for those states.

Nearly 75% of the country is at risk for a potentially damaging earthquake in the next 100 years, according to a recently updated map from the U.S. Geological Survey. The map is the first to include ...

For centuries, there was one thing California offered that other states just didn’t have. No, we're not talking great fish tacos or giant sequoias—it's frequent earthquakes. But a new map published by ...

Sign up for the Morning Brief email newsletter to get weekday updates from The Weather Channel and our meteorologists. N early 75% of the country is at risk for a ...