seismicity
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Was It an Alien Spacecraft—Or a Delivery Truck?
A Harvard astronomer says a meteor came from beyond our solar system. A new study questions whether his data includes a more obvious explanation.
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California Quake Faults Are Highly Sensitive to Solid Earth Tides, Say Scientists
Oceans have tides, and so does the solid earth. Could they have an effect on earthquake faults? Yes, say scientists, but that doesn’t necessarily mean they cause big quakes.
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Supercomputers Simulate 800,000 Years of California Earthquakes to Pinpoint Risks
Scientists are working to improve their calculations of earthquake danger by combining maps of known faults with the use of supercomputers to simulate potential shaking deep into the future in California.
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
