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Alaska earthquake data shows potential for early warning

Tags: earthquakes

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.

Two High Magnitude Earthquakes “Wake up” Fault System in Southwestern Türkiye, Triggering Over 200 Aftershocks

Tags: earthquakes , seismology

On February 6th, 2023, Türkiye and Syria experienced the devastating effects of two large (magnitude 7.8 and 7.5) earthquakes, which triggered more than 200 aftershocks. A recent study led by first author, Gesa Maria Petersen, maps two fault zones using data produced from these earthquakes, uncovering never before mapped fault sections and ground motion along these faults. 

Ol Doinyo Lengai: Unpacking the Mystery Below

Tags: GPS/GNSS , volcanoes

Down at the southern end of the East African Rift in Tanzania lies the Ol Doinyo Lengai volcano, exceptional in that it is the only active volcano that erupts carbonatites— igneous rocks composed of  >50% carbonate minerals.

Fiber-Optic Cable Technology: A New Way to Study Firn in Greenland

Tags: DAS , polar

Researchers interested in determining the depth of the firn layer within a glacier might spend six hours drilling, extracting, and analyzing a core in frigid temperatures. Recent research poses a new method for determining firn layer depth based on an exciting technology finding expanding applications in seismology.

Fluids flowing beneath Cascadia

Tags: magnetotelluric , subduction zone

Subduction zones play a crucial role in recycling old oceanic crust, while also carrying water into Earth’s interior. Magnetotelluric imaging can help scientists better see where fluids have accumulated in the crust.