Revision History for FS 2025-3050 Erin Wirth, Arthur Frankel, Brian Sherrod, Alex Grant, Audrey Dunham, Ian Stone, and Julia Grossman Earthquake Probabilities and Hazards in the U.S. Pacific Northwest ----------------------------------------------------- Posted online September 19, 2025 ----------------------------------------------------- Revised and reposted September 30, 2025, version 1.1 The text version was modified on p. 5; text was changed from "we calculate an ~700-year recurrence interval" to "we calculate an ~800-year recurrence interval", from "corresponds to a 7-percent chance" to "corresponds to a 6-percent chance", from "interval of ~890 years" to "interval of ~1,000 years", from "This is consistent with the seismicity rates" to "This is roughly consistent with the seismicity rates" The text version was modified on p. 6 from "Staisch, L.M. and Walton, M.A., 2002" to "Staisch, L.M. and Walton, M.A., 2022"