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. Author manuscript; available in PMC: 2017 Feb 8.
Published in final edited form as: Nat Geosci. 2016 Aug 8;9(9):695–700. doi: 10.1038/ngeo2775

Figure 2. Mechanical and P-wave velocity measurements during slow-slip (top) and fast-slip cycles (lower curves).

Figure 2

Data showing the evolution of shear stress (black), layer thickness (blue) and changes in P-wave velocity (Vp) (red) during slow (top set of curves) and fast (lower curves) stick-slip events. Inset shows a typical waveform with the P-wave arrival and the P-coda used to calculate Vp (see Fig. Supplementary 4 and methods for additional details). Note the consistency in the Vp evolution during the slow and fast stick-slip cycles, mimicking the evolution of shear stress.