Extended Data Fig. 2: Time series before the Tohoku-oki earthquake and the effect of noise removal with GrAtSiD in all three directional components.
From: Months-long thousand-kilometre-scale wobbling before great subduction earthquakes
Left panels show the pre-Tohoku-oki F3 time series. Right panels show these time series after the removal of background seasonal and common-mode noise (with the GrAtSiD routine). The transient behaviour in the months before Tohoku-oki is heavily obscured by seasonal and common-mode noise. Colours correspond to locations on Fig. 1. For clarity, steps have been removed from all time series. Time series in these plots extend until three days before the mainshock.
