Advancing earthquake science worldwide
21 April 2022–A device that could detect minute, transient fluctuations in gravity caused by an earthquake could be a useful tool in earthquake early warning systems, researchers said at the Seismological Society of America’s Annual Meeting. The Superconducting Earthquake Early-warning Device (SEED), proposed by Ho Jung Paik of the University … Continue Reading »
21 April 2022–Unused telecommunications fiber could form the backbone of earthquake early warning systems that complement existing warning systems and fill in critical gaps such as offshore detection, Robert Mellors said at the Seismological Society of America’s Annual Meeting. Distributed acoustic sensing, or DAS, uses the tiny internal flaws in … Continue Reading »
20 April 2022–Small seismic waves generated by urban activity in Mexico City offer a glimpse at how subsiding soils may be speeding up the seismic waves that travel in the shallow layers beneath the city. As groundwater is extracted from beneath the city, the lakebed soils and clays that support … Continue Reading »
15 April 2022–As SSA President, John Townend has been at the helm of the society as it weathered the challenges of a pandemic and a virtual annual meeting, but the past year has led to new insights as well. “The pandemic has forced us to adapt the ways we meet … Continue Reading »
13 April 2022–The rise of fiber-optic distributed acoustic sensing (DAS) in seismology could prove a useful addition to earthquake early warning systems, researchers write in the Bulletin of the Seismological Society of America. DAS uses the tiny internal flaws in a long optical fiber as thousands of seismic sensors. An … Continue Reading »
16 March 2022–Seismic and acoustic data recorded 50 meters away from a research nuclear reactor could predict whether the reactor was in an on or off state with 98% accuracy, according to a new study published in Seismological Research Letters. By applying several machine learning models to the data, researchers … Continue Reading »