Geology

An enormous magma intrusion under Iceland’s Reykjanes Peninsula is causing earthquake swarms and forcing evacuations

Egypt’s famous Sphinx may have originated as a rock feature carved by erosion that ancient Egyptians further refined into the iconic monument

A preserved river landscape from the time before Antarctica was icebound persists more than a mile below the East Antarctic Ice Sheet

A long-lost tectonic plate dubbed “Pontus” that was a quarter of the size of the Pacific Ocean was discovered by chance by scientists in Borneo

Washington State’s Puget Sound could face previously unknown earthquake risks, according to a new study that has pinned down the date of an ancient earthquake using tree rings and the radiation left by a mysterious cosmic force

Western Australia’s Argyle Mine is famous for its rare pink diamonds, and scientists now think they know how these formed: a tectonic collision followed by the breakup of a supercontinent

Researchers have discovered a pattern where diamonds spew from deep beneath Earth’s surface in huge, explosive volcanic eruptions

Researchers have found a subtle signal that occurs two hours before major quakes, hinting that earthquake prediction is inching closer to possibility

Satellites and other technologies are spurring a new revolution in volcanic activity monitoring

A vast expanse of the Indian Ocean is a staggering 100 meters lower than the global average sea level because of a major dip in Earth’s gravity. Scientists now think they know the cause

The January 2022 eruption of the Hunga Tonga–Hunga Haʻapai volcano generated a thunderstorm with more than 192,000 lightning flashes, including 2,600 flashes per minute at its peak

The weight of New York City’s 1.1 million buildings is making the city slowly sink