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Accuracy of estimated horizontal velocities of stations in the deep interior of the North American plate, where it is assumed that the plate is rigid. Blue diamonds show results of our MIDAS estimator, and red crosses show the published NA12 reference frame velocities estimated using least squares on step‐free data [Blewitt et al., 2013]. MIDAS uncertainties are not shown for clarity; however, they are consistent with the scatter of the data.
