Warning time scenario if a magnitude 7 (M7) earthquake occurred on the Brigham City segment of the Wasatch fault zone. The red circles show how much warning time would be provided at that location before shaking begins. The dashed red circle is the “no-alert zone” for an alert latency of eight seconds. Colors indicate the maximum intensity of expected shaking caused by “shear wave” energy created by the earthquake. OT = origin time. From Bowman et al., 2023, On the feasibility of implementing an earthquake early warning (EEW) system in Utah: Online, doi.org/10.34191/EEW-2023