Map showing earthquakes and seismic stations used in the tomographic inversion. Solid white lines show major faults bounding Afar Depression, gray filled regions show Quaternary volcanic segments, and black lines show political borders. MER—Main Ethiopian Rift, GOA—Gulf of Aden, RSR—Red Sea Rift, TJ—triple junction, EAGLE—Ethiopia Afar Geoscientific Lithospheric Experiment, EKBSE—Ethiopia Kenya Broadband Seismic Experiment. Red symbols show data used in tomography for first time, white symbols show stations used in previous studies (Benoit et al., 2006; Bastow et al., 2008).
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