A strong, 6.6-magnitude earthquake struck in Papua New Guinea on Tuesday, according to the United States Geological Survey.

New research offers the theory that the San Andreas fault and the Cascadia subduction zone could produce devastating ...

On Oct. 19, 1989, Gov. George Deukmejian took a brief tour of the downtown, discussing the disaster,” writes columnist.

Ancient ocean grains show Earth’s carbon levels were far lower than expected during key evolutionary eras. The results challenge old theories of life’s rise and hint at patterns that could shape our ...

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...