| Region | This study by inversion of the receiver functions | Other study by stacking of the receiver function) | Reference | ||||
| Garoua rift | tPs (s) | tPpsP (s) | tPpSs (s) | tPs (s) | tPpsP (s) | tPpSs (s) | [25] |
| 3.7 | 11 | 17.6 | 3.2 | 10.5 | 14 | ||