Advancing earthquake science worldwide
7 October 2020–An unusually shallow earthquake triggered by hydraulic fracturing in a Chinese shale gas field could change how experts view the risks of fracking for faults that lie very near the Earth’s surface. In the journal Seismological Research Letters, Hongfeng Yang of The Chinese University of Hong Kong and … Continue Reading »
30 September 2020–The 2019 Ridgecrest earthquake sequence has revealed areas of the Los Angeles basin where the amplification of shaking of high-rise buildings is greatest, according to a new report in Seismological Research Letters. The 6 July 2019 magnitude 7.1 earthquake, located 200 kilometers (124 miles) north of Los Angeles, … Continue Reading »
14 September 2020–In 2004, Brian Terbush climbed Mt. St. Helens in Washington State. The trip fueled his fascination with volcanoes, and he “jumped on the chance” to go to graduate school to study them further. “I’ve been lucky to get to see lots of volcanoes erupting and get a little … Continue Reading »
17 August 2020–For decades, seismologists have contended with the background “hiss” of the Earth—seismic waves generated by the normal interaction of land, ocean and atmosphere. Their goal has been to find ways to subtract this “noise,” to concentrate on the seismicity generated by earthquakes. But one scientist’s noise is another’s … Continue Reading »
5 August 2020–The heights of La Soufrière de Guadeloupe volcano can be hellish, sweltering at more than 48 degrees Celsius (120 degrees Fahrenheit) and swathed in billows of acidic gas. Researchers would like to monitor gas and steam eruptions at its summit, to learn more about the volcano’s explosive potential, … Continue Reading »
29 July 2020–Aaron Lojewski, who leads aurora sightseeing tours in Alaska, was lucky enough to photograph a “eruption” of brilliant pink light in the night skies one night in February. The same perturbations of the Earth’s magnetic field that lit up the sky for Lojewski’s camera were also captured by … Continue Reading »