Complex Deep Structure of the African Low-Velocity Zone

This electronic supplement contains 14 figures and 4 tables. Each figure shows the preprocessed original waveforms aligned with the synthetics for the corresponding event. The alignment and the travel-time delay shown in each panel are obtained after following the procedure described in the Travel-Time Picks section in the main article. The tables give a list of stations and the values for the applied corrections, that is, mantle correction, station correction, and event correction.

Table S1 [Plain Text Comma-Separated Values; 4 KB]. Station list.

Table S2 [Plain Text Comma-Separated Values; 7 KB]. Mantle corrections derived from S40RTS. Values are given for each station, event, and phase in seconds.

Table S3 [Plain Text Comma-Separated Values; 970 Bytes]. Station corrections.

Table S4 [Plain Text Comma-Separated Values; 164 Bytes]. Event corrections.

Figure S1. Event SS2011-03-06 and phase *S* (*SV*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S2. Event SS2011-03-06 and phase *ScS* (*SV*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S3. Event SS2011-09-03 and phase *S* (*SV*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S4. Event SS2011-09-03 and phase *ScS* (*SV*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S5. Event DP2012-01-15 and phase *S* (*SV*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum only for the WALPASS stations. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S6. Event DP2012-01-15 and phase *SKS* (*SV*/*SH*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study. (a) Both *SKS* and *S* arrivals are given for the *SV* component. (b) The *S*-*SH* synthetic is plotted at the same delay time as determined on the *SV* component above for comparison. The *SH* component contains no *SKS* wave.

Figure S7. Event IR2010-12-20 and phase *S* (*SH*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S8. Event IR2010-12-20 and phase *ScS* (*SH*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.6, the travel-time delay is given in gray; these data have not been used in the study. This is the only event for which the correlation coefficient threshold has been lowered.

Figure S9. Event PAK2011-01-18 and phase *S* (*SH*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S10. Event PAK2011-01-18 and phase *ScS* (*SH*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S11. Event EPR2010-11-21 and phase *SS* (*SH*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S12. Event EPR2010-11-21 and phase *SKS* (*SV*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S13. Event SIB2012-02-26 and phase *S* (*SV*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

Figure S14. Event SIB2012-02-26 and phase *SKS* (*SV*). Original waveforms (black) and synthetics (red) aligned at the correlation maximum. Station names and resulting travel-time delays (without corrections) are given in each panel. For correlation coefficients lower than 0.8, the travel-time delay is given in gray; these data have not been used in the study.

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