Advancing earthquake science worldwide
7 April 2020–In complex fault zones, multiple seemingly disconnected faults can potentially rupture at once, increasing the chance of a large damaging earthquake. Recent earthquakes including the 1992 Landers, 1999 Hector Mine and 2019 Ridgecrest earthquakes in California, among others, ruptured in this way. But how can seismologists predict whether … Continue Reading »
Dear SSA Community: Thank you for your patience while SSA leadership has closely monitored the novel coronavirus (COVID-19) situation. After careful deliberation, the SSA Board of Directors has decided to not convene the 2020 Annual Meeting. The health and safety of our community is our paramount concern. Guidance from the … Continue Reading »
16 March 2020–There are two main pillars of seismology, Carl Tape says. “One is studying the structure of the earth or any medium—it could be a rock sample in the laboratory, he notes. “The other is studying source processes—an earthquake, a volcanic event, an event within a glacier, a nuclear … Continue Reading »
14 February 2020–As he pursued his master’s degree at Boise State University, Marlon Ramos was doing what he calls “traditional, active-source seismology,” interpreting seismic pictures of tsunami-producing faults near the Kodiak Island segment of the Alaska-Aleutian megathrust zone. “I had an interest in subduction zones and the very large earthquakes … Continue Reading »
30 January 2020–Nearly 40 years ago, analog data tapes faithfully recorded intense seismic activity in the two months before the historic eruption of Mount St. Helens in Washington State in May 1980. It took some lengthy and careful restoration efforts—including a turn in a kitchen oven for some of the … Continue Reading »
28 January 2020–Earthquakes along a complex series of faults in the upper plate of New Zealand’s northern Hikurangi Subduction Margin were responsible for coastal uplift in the region, according to a new evaluation of local marine terraces. The findings, reported in the Bulletin of the Seismological Society of America, could … Continue Reading »