3 May 2024–About six months before the 2023 Mw 7.8 Kahramanmaraş earthquake in Türkiye, transient short pulses of low-frequency seismic activity were occurring on the east side of the East Anatolian Fault Zone, researchers reported at SSA’s 2024 Annual Meeting. Learning more about the properties and physical origins of these … Continue Reading »

3 May 2024–Record-setting storms in 2023 filled California’s major reservoirs to the brim, providing some relief in a decades-long drought, but how much of that record rain trickled underground? Shujuan Mao of Stanford University and her colleagues used a surprising technique to answer this question for the greater Los Angeles … Continue Reading »

2 May 2024–The names might not be familiar—Cowee Creek, Brabazon Range, Upper Pederson Lagoon—but they mark the sites of recent lake tsunamis, a phenomenon that is increasingly common in Alaska, British Columbia and other regions with mountain glaciers. Triggered by landslides into small bodies of water, most of these tsunamis … Continue Reading »

2 May 2024–On an October morning in 2023, a chemical explosion detonated in a tunnel under the Nevada desert was the launch of the next set of experiments by the National Nuclear Security Administration, with the goal to improve detection of low-yield nuclear explosions around the world. Physics Experiment 1-A … Continue Reading »

2 May 2024–Permafrost in Utqiaġvik, Alaska, differs from place to place under the surface, ranging from ice rich zones to unfrozen layers in both undisturbed and disturbed tundra, according to a new report discussed at the Seismological Society of America (SSA)’s 2024 Annual Meeting. Using multiple geophysical techniques to explore … Continue Reading »