Scientists once thought Earth’s continental mantle was too weak for earthquakes. A new global map of 459 deep tremors suggests otherwise.
seismology
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These South Pole Seismometers Will Detect Vibrations 1.5 Miles Under the Ice
The instruments will freeze into Antarctica’s ice sheet, where they will collect detailed, global-scale seismic data.
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Kyanite Exsolution Reveals Ultra-Deep Subduction of Continents
Laboratory experiments provide the first experimental evidence that continental rocks can be subducted to depths greater than 300 kilometers and return to the surface.
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Where the Tianshan Will Break Next: Strain, Slip, and Seismic Hazard
Geodetic strain and slip deficits reveal where the Tianshan is storing stress and which faults may generate the next major earthquakes in the region.
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Are We Really Seeing More Foreshocks with Enhanced Catalogs?
Different definitions and selection methods can lead to large differences in estimated foreshock rates; however, robust statistical method shows that foreshock rates are similar between standard and enhanced catalog.
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Frictional Properties of the Nankai Accretionary Prism
A database of frictional properties from IODP drilling materials explores the range of slip spectrum and the generation of slow to fast earthquakes in the Nankai subduction zone in light of mineralogy.
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The Land Beneath Antarctica’s Ice Might Be Full of Water
Seismic surveys hint at the extent of a potential groundwater system in the White Continent.
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Complex Plumbing Dynamics for Kīlauea Volcano
A new analysis of subtle seismic velocity changes provides insights into the coupling of magma reservoirs of Hawaiian volcanoes.
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The Ridgecrest Earthquake Left Enduring Damage in Earth’s Deep Crust
The shallow crust has recovered since California’s 2019 quake, but damage persists at depths greater than 10 kilometers.
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AI is Changing our Understanding of Earthquakes
Machine learning is expanding scientists’ catalogs of quakes and refining maps of underground faults. It also promises to improve quake forecasts.