Supporting Information—Multi-Scale Seismic Tomography in Rift Zones: Implications for Lithospheric Evolution in the Afar Region

Description of the files included in the Supporting Information

Ave_residuals.txt: Calculated average travel-time residual (ATRC) at four back-azimuthal directions (Columns 10–13). Columns 14 and 15 are the overall calculated (AVRC) and from both the ISC (AVRI).

Data.txt: Converted format of hypocentral parameters and arrival times from the International Seismological Center (ISC) archives

Events.txt: Events used in the study, from 1976 to 2023 for magnitude (mb) greater than or equal to 1.5. Here LR is the source layer (ak135 model), NP is the number of P-arrivals, NS is the number of S-arrivals.

L-curve_analysis.txt: A python implementation of this L-curve analysis in the manuscript.

Model_3D_15min.txt, Model_3D_30min.txt, Model_3D_60min.txt: P-wave model for the study region as well as S-wave, density, and Poisson's ratio derived from empirical relationships for the 0.25º, 0.5º, and 1.0º equilateral grid cell sizes.

Residuals.txt: The residuals for the present study (RCAL) and those from ISC (RISC) are listed in columns 9 and 10, respectively, for corresponding events and arrivals.

S_Figures.doc: Supplementary figures referenced in the manuscript.

Stations.dat: A list of stations within the study area.