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
Echoes from earthquakes suggest that Earth’s solid inner core has its own core
The planet’s solid inner core might rotate at a different rate than the rest of the planet, and that rate might be changing
Heavy rains may have set off an outpouring of ash and gases from Indonesia’s volcano Semeru “like uncorking a soda bottle”
The magma that is fueling the first eruption of Hawaii’s Mauna Loa volcano in nearly 40 years is less likely to cause explosive effusions than magma at other volcanoes
Hawaii’s Mauna Loa, the largest active volcano on Earth, erupted for the first time in nearly 40 years. Its eruptions tend to be shorter-lived than those of the other Big Island volcanoes, and its lava is more liquid and flows faster...
“Paleo valleys,” carved by ice age rivers and now underground, could provide spaces to recharge California’s depleted groundwater
A controversial new theory suggests the Milky Way galaxy’s arms sent comets hurtling toward early Earth, where impacts built new continental crust
A new formation method for rare “lonsdaleite” diamonds may illuminate a better way to produce them on Earth
A diamond contains the only known sample of a mineral from Earth’s mantle—and hints at oceans’ worth of water hidden deep within our planet
A huge number of minerals’ origins are tied to life on Earth
