Extended Data Fig. 9: Comparing the transient surface motions recorded by GNSS and predicted by fluid-loading models before the Tohoku-oki earthquake.
From: Months-long thousand-kilometre-scale wobbling before great subduction earthquakes
The map shows the GNSS station locations used in the analysis comparing fluid-loading displacement predictions to GNSS displacement measurements for the pre-Tohoku-oki case. The time series show a comparison of the median velocity variations for GNSS-measured (GSI’s F3 solutions) and fluid-loading-predicted displacements at the locations in the map. Velocities are taken from the trends estimated by GrAtSiD. In the horizontal components, the prediction from fluid loading produces much lower velocities than those observed. In the vertical component, there is considerable deviation from steady-state velocity in both the GNSS observation and fluid-loading prediction but with visibly low agreement in sense of motion.
