Program Information
Join your seismology colleagues from around the globe and enjoy a wide range of engaging lectures, poster presentations and field seminars.
Click the buttons below to see the full schedule of technical sessions, plenaries, workshops and field trips.
Attendees may search for abstracts and sessions using the online database:
keynote address

What’s Shaking, Eastern North America? The Continuing Quest to Understand Intraplate Quakes
Susan Hough | Geophysicist, U.S. Geological Survey (Pasadena)
With panel discussion by John Ebel, Boston College; Fola Kolawole, Columbia University; and Chuck Langston, University of Memphis
The year 2025 marks the centennial anniversary of three moderately large North American earthquakes: Quebec, Montana and Santa Barbara. Before Richter’s introduction of the magnitude scale, the differences in shaking distribution led credence to arguments that California did not face inordinately high earthquake hazard compared to the rest of the U.S. A century later, scientists understand the stark difference in wave propagation in eastern North America versus the west. But a half-century after plate tectonics provided an elegant paradigm to understand interplate earthquakes, a paradigm to explain intraplate quakes remains elusive. Detailed investigations have shed new light on key seismic zones, including New Madrid, Charlevoix (Quebec) and Charleston (South Carolina). Paleoliquefaction evidence confirms the existence of long-lived seismic zones, most convincingly at New Madrid. But why does stress (or strain) concentrate in a region subjected to broad, low-strain rate tectonic stresses? And how many unknown seismic zones might be lurking quietly, having remained mute during the short historical record? Hough will discuss the continuing quest to understand intraplate quakes, including the known knowns, the known unknowns and the unknown unknowns.
plenary address

The USGS Earthquake Hazards Program: Science to Support Decision-Making
Gavin Hayes | Senior Science Advisor for Earthquake and Geologic Hazards, U.S. Geological Survey (Golden)
With panel discussion by Jean-Philippe Avouac, California Institute of Technology; Heather DeShon, Southern Methodist University; and Vadim Levin, University of Memphis
Earthquakes are a national hazard, with recent analyses indicating that nearly 75% of the U.S. could experience damaging shaking. The USGS Earthquake Hazards Program (EHP) provides authoritative and impartial scientific information that can be successfully applied to reducing earthquake losses and improving resilience in the U.S. and its territories. The Program works under the Congressionally authorized National Earthquake Hazards Reduction Program and is a line item in annual USGS Federal Budget appropriation. Success in advancing earthquake risk reduction requires understanding of and working within existing guidelines and environments, while delivering actionable science to support decision-making. Partnerships are critical to support these efforts; the EHP funds the external community to collaborate in accomplishing its monitoring, hazard assessment and research goals. Hayes will discuss the work of the Program within the federal government, the new EHP decadal science strategy, and how partnerships with the external seismological community are critical to achieve an earthquake-ready nation.
Government relations update

GR Update
Elizabeth Duffy | SSA Washington Liaison
Join us for an insider’s look at the latest policy developments in Washington, D.C. Get up to speed on budget negotiations, appropriations and key legislation that could shape the future of seismic science. It’s a great opportunity to stay informed and gain valuable insights on the intersection of science and federal policy.
No RSVP needed.
Awards and Presidential address

Annual Business and Awards Luncheon
Heather DeShon | Southern Methodist University
SSA President Sue Bilek will preside over the awards ceremony and provide an update on the Society. Immediate Past President Heather DeShon (2024-25) will deliver the presidential address.
WILLIAM B.JOYNER MEMORIAL LECTURE

Risk and Reward: Working at the Boundaries of Earthquake Science
Laurie Baise | Chair of the Department of Civil and Environmental Engineering, Tufts University
Baise’s Joyner Lecture, “Risk and Reward: Working at the Boundaries of Earthquake Science” will discuss working at the boundary of geology, seismology and earthquake engineering. In the lecture, she will highlight her work on bridging the gap between earthquake engineers and earthquake scientists through geospatial proxies for site effects and liquefaction and the importance of regionally informed models.
Schedule of the Week
Monday, April 14
Workshops
Organized Visit to Capitol Hill
Pride of Baltimore Field Seminar
Tuesday, April 15 – Thursday, April 17
Technical Sessions
Government Relations Briefing
Friday, April 18
Pride of Baltimore Field Seminar
Smithsonian and Washington Fault Lines Field Seminar