Advancing earthquake science worldwide
21 April 2021–Decades-old aerial photos of Yudong District, Datong City in Shanxi Province, Northern China have helped researchers in their search for a fault hidden underneath the city’s buildings and cement roads, researchers said at the Seismological Society of America (SSA)’s 2021 Annual Meeting. Analyzing these photos from the 1960s … Continue Reading »
20 April 2021–Seismic profiling of a very stable and ancient continental block in North China may offer clues as to when the Earth’s global subduction network began operating, according to a presentation at the Seismological Society of America (SSA)’s 2021 Annual Meeting. Seismic receiver function studies in part of the … Continue Reading »
20 April 2021–When hydraulic fracturing operations ground to a halt last spring in the Kiskatinaw area of British Columbia, researchers expected seismic quiescence in the region. Instead, hundreds of small earthquakes occurred for months after operations shut down, according to a new study. In her presentation at the Seismological Society … Continue Reading »
20 April 2021–The famous 1700 Cascadia earthquake that altered the coastline of western North America and sent a tsunami across the Pacific Ocean to Japan may have been one of a sequence of earthquakes, according to new research presented at the Seismological Society of America (SSA)’s 2021 Annual Meeting. Evidence … Continue Reading »
20 April 2021–Earthquake early warnings can be delivered successfully using a small network of off-the-shelf smartphones attached to building baseboards, according to a study conducted in Costa Rica last year. In his presentation at the Seismological Society of America (SSA)’s 2021 Annual Meeting, Ben Brooks of the U.S. Geological Survey … Continue Reading »
19 April 2021–Boston College seismologist John Ebel and his colleagues have noted a pattern for some large California earthquakes: magnitude 4 or larger earthquakes occur at a higher rate along a fault in the two decades or more prior to a magnitude 6.7 or larger earthquake on the fault. The … Continue Reading »