Kenneth W. Campbell Awarded 2025 Bruce Bolt Medal

Kenneth Campbell

15 November 2024–The Earthquake Engineering Research Institute (EERI), the Consortium of Organizations for Strong Motion Observation Systems (COSMOS), and SSA are pleased to announce that Kenneth W. Campbell of CoreLogic Inc. (retired) is the recipient of the 2025 Bruce Bolt Medal. Campbell was recognized for his 50 years of research … Continue Reading »

Precariously Balanced Rocks in New York, Vermont Provide Limits on Earthquake Shaking

10 September 2024–Five boulders, delivered by glacier and balancing delicately on rocky pedestals in northern New York and Vermont, can help define long-term maximum shaking intensity of earthquakes in the region. Seismologists examine the fragility of precariously balanced rocks, or PBRs, to determine the intensity of shaking would be needed … Continue Reading »

In-Building Data from Small to Moderate Earthquakes Can Help Predict Structural Response

Grenoble City Hall building

15 August 2024–Data recorded by seismic instrumentation in buildings where ground motion is weak to moderate can help engineers better understand structural responses to earthquakes, according to a new paper published in the Bulletin of the Seismological Society of America. Philippe Guéguen and Ariana Astorga at Université Grenoble Alpes – … Continue Reading »

Earthquake Fatality Measure Offers New Way to Estimate Impact on Countries

Ruins of Pelileo in Ambato — after the 1949 Ambato earthquake in Ecuador

15 February 2024–A new measure that compares earthquake-related fatalities to a country’s population size concludes that Ecuador, Lebanon, Haiti, Turkmenistan, Iran and Portugal have experienced the greatest impact from fatalities in the past five centuries. The new impact measure, introduced in the Bulletin of the Seismological Society of America by … Continue Reading »