Fig. 3: Results of 200 inversions of σ1 using bootstrap resampled focal mechanisms for upper-plane events.
From: Effects of episodic slow slip on seismicity and stress near a subduction-zone megathrust

Distributions of (a) dip and (b) strike angles of σ1 beneath the SST zone. Blue and red columns, respectively, show the directions of σ1 of 200 inversions using events before and after SST times. Blue and red arrows, respectively, show the directions of σ1 of the stress inversion using the original dataset before and after SST times. Distributions of (c) dip and (d) strike angles of σ1 beneath the updip zone.