Drawing on more than 750 sources and featuring hundreds of pages of supplemental material, a new map of Alaska's surface geology was a two-decade labor of love.

A strong, 6.0-magnitude earthquake struck in Ethiopia on Friday, according to the United States Geological Survey. The temblor happened at 11:28 p.m. East Africa time about 4 miles northeast of ...

A moderately strong, 5.5-magnitude earthquake struck in Ethiopia on Sunday, according to the United States Geological Survey. The temblor happened at 9:53 p.m. East Africa time about 28 miles ...

Geologic map and sections of Manhattan Island, State of New York (1898) The Lionel Pincus & Princess Firyal Map Division’s high resolution digitized maps can be found on the NYPL’s Digital ...