Advancing earthquake science worldwide
15 November 2021–The Earthquake Engineering Research Institute (EERI) and the Seismological Society of America (SSA) are pleased to announce that David J. Wald, a seismologist with the U.S. Geological Survey’s National Earthquake Information Center (NEIC) in Golden, Colorado, is the 2022 recipient of the William B. Joyner Lecture Award. Wald … Continue Reading »
15 November 2021–The Earthquake Engineering Research Institute (EERI), the Consortium of Organizations for Strong Motion Observation Systems (COSMOS), and SSA are pleased to announce that C.B. Crouse, principal engineer at AECOM, is the recipient of the 2022 Bruce Bolt Medal. The award will be presented at the 12th National Conference … Continue Reading »
3 November 2021–Seismic hazard analyses may use ergodic ground motion models—a sort of “average” based on global data about ground motion—or non-ergodic models, which incorporate more local and regional data on seismic source and nearby geologic structures. Having that site-specific analysis can make a big difference, as consulting seismologist Gilead … Continue Reading »
21 September 2021–Researchers at Lawrence Livermore National Laboratory have calculated moment tensors for 130 underground nuclear and 10 chemical test explosions that took place at the Nevada National Security test site. Often represented graphically to resemble a striped “beach ball,” moment tensors “are essentially a mathematical concept that’s used to … Continue Reading »
20 September 2021–Growing up in the mountains in China, Songqiao “Shawn” Wei never saw the ocean until he was 23, flying over the Pacific from Beijing to San Francisco for an American Geophysical Union meeting. “But when I was a kid I liked the sea, from books and movies, and … Continue Reading »
The generosity of Clarence Allen (1925-2021), SSA’s 41st president, will bring career-changing opportunities to countless scientists in our community. The Seismological Society of America (SSA) announced today that it has received a gift of nearly $1.6 million, a bequest from the estate of renowned seismologist Clarence Allen. The gift from … Continue Reading »