Revision History for U.S. Geological Survey Open-File Report 2021–1026 By Jeffrey J. McGuire, Deborah E. Smith, Arthur D. Frankel, Erin A. Wirth, Sara K. McBride, and Robert M. de Groot Expected Warning Times from the ShakeAlert Earthquake Early Warning System for Earthquakes in the Pacific Northwest --------------------------------------------------------- Posted online March 10, 2021 -------------------------------------------------------- Revised and reposted March 24, 2021 Corrected x-axis labels on parts A, C, and E of figure 7 as well as figures 1.2, and 1.3 of appendix 1. Updated the caption to match. Clarified what variable n means in the caption of figures 7, 1.2, and 1.3.