A Review of Earthquake Source Parameters in the Main Ethiopian Rift

Figure 7

Summary of all fault plane solutions compiled from several regional studies as listed in Tables 1 and 2. The black beach balls represent the focal mechanisms from the ISC catalog, the red beach balls represent the waveform inversion of [11, 14, 15, 35], the blue beach balls represent the polarity reading of [15, 17], and the magenta beach balls represent the focal mechanisms of the 2017 and 2018 earthquakes from which the source parameters are computed using moment tensor inversion from the waveform data. The beach ball size is proportional to the earthquake magnitude, and the solutions show normal faulting with considerable strike-slip components.