To create the map, the researchers amassed over 2,000 stress orientations taken across North America, of which 300 are brand new. These measurements were taken from boreholes—long, narrow shafts ...

Seismic Map of N. America Reveals Continent Under Stress. George Dvorsky, Gizmodo April 27, 2020. AP Photo/U.S. Geological Survey. Scientists have compiled the most comprehensive map yet of tectonic ...

The 15th century Vinland Map, the first known map to show part of America before explorer Christopher Columbus landed on the continent, is almost certainly genuine, a Danish expert said Friday.

Roughly 1.1 billion years ago, America tried to rip itself in half. The Midcontinental Rift System nearly created a continent far different than the one we know today. A nearly 2,000 mile gash in ...