Nuclear explosion monitoring gets a new dataset
In order to monitor compliance with the Nuclear-Test-Ban Treaty, the CTBTO is developing ways to verify nuclear explosions. A new benchmark dataset based on (non-nuclear) experiments is one example.
Seismometers listen in on ocean waves in a warming world
Wind-driven ocean waves beat on Earth’s seafloor, creating a continuous signal for which seismic stations around the world listen—a signal that is increasing.
Magma and mountain building at the Columbia River Gorge
The Columbia River has sawed its way to the sea as a mountain range grew up around it. There is history to be read in the walls of the gorge, including history of the mountains’ rise.
NSF-funded GeoCode project demonstrates educational impact of coding and using large, real-world datasets
Students gain an authentic scientific experience by exploring large, real-world datasets and building coding skills with GeoCode’s educational modules.
Corner reflectors installed at NOTA stations for NASA JPL Project
To facilitate calibration of InSAR ground displacement measurements, NASA JPL corner reflectors have been deployed next to NOTA stations along the San Andreas Fault. Check out this video to learn more!
Fast and Slow: Chile’s subduction zone moves in distinct ways
Though Chile is known for several major earthquakes, the Atacama seismic gap features slow movement that scientists seek to unravel.
Thorium spikes in Colorado streams could be caused by bedrock fractures
Changes in trace amounts of the element thorium in two Colorado catchments appear to be explained by subsurface fracturing. The cause of fracturing might be attributable to distant earthquakes.
Former intern finds curious signal in geyser eruption data
Seismic monitoring of Yellowstone’s Steamboat Geyser showed that signals appeared weaker in winter—because of snow cover.
Alaska earthquake data shows potential for early warning
During the summer of 2021, the magnitude 8.2 Chignik earthquake ruptured on the Alaskan coast, providing scientists, such as a team led by Parameswaran of University of Alaska Fairbanks, with a test case for a future early warning system for the region.
The Cascadia Slow Slip Phenomenon
The Cascadia Subduction Zone is not your typical subduction zone. It is characterized by unique “slow slip events” that occur in the intervals between megathrust earthquakes along the fault.