Geology

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

The last caldera-forming eruption at Yellowstone “was much more complex than previously thought,” according to the annual report about activity at the supervolcano

Dozens of people reported tremors on the island of Bornholm, but seismologists say there was no earthquake