Cascadia
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Earth’s Crust Is Tearing Apart off the Pacific Northwest—and That’s Not Necessarily Bad News
Using seismic reflection imaging—essentially an ultrasound of the Earth’s subsurface—and detailed earthquake records, researchers captured a subduction zone in the process of tearing itself apart.
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The Measure of a Man: Jerome M. Paros ’63GSAS’ Life of Invention and Philanthropy
Jerry Paros’ inventions have improved the measurements of geophysical phenomena such as tsunamis, and enhance our ability to understand the complex earth, air and ocean processes that produce climate change.
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Cascadia Subduction Zone, One of Earth’s Top Hazards, Comes Into Sharper Focus
Where tectonic plates collide off the coasts of the western United States and Canada, giant earthquakes and tsunamis occur. The last one was 324 years ago. When will be the next?
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Searching for Faults From Afar
Researchers are using ocean-bottom and land-based seismometers to record the R/V Marcus Langseth’s soundings from afar, to better understand the potential impacts of large earthquakes in the Cascadia region.
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Seismic Data on Deck: Sounding for the Cascadia Megathrust Fault
Using sound and a 7.5-mile-long streamer towed behind the boat, scientists can collect a tremendous amount of data from under the seafloor.
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Observations While on Quarantine in Newport, Oregon
Before embarking on a 6-week voyage to scan for Cascadia’s megathrust fault, the research team had to quarantine for two weeks in a hotel.
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Searching for the Megathrust Fault at Cascadia
Researchers have set sail to find and map a fault that causes giant earthquakes in the Pacific Northwest.
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Clark Glacier Commemorated at Funeral in Oregon
In mid-October, Oregon’s Clark glacier was honored with a funeral and calls to protect the state’s often overlooked glaciers.
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
