Fig. 1

Tectonic setting of the study region; Colored and shaded relief map of some parts of East African Rift system. Red triangles show volcanoes from the Global Volcanism Program (2013). The East African Rift system separates the Nubian and Somalian plates to the west and east of the rift, respectively. The Arabian plate is separating from Nubia and Somalia with the triple junction at Afar region. The yellow doted curved line indicates the Tendaho-Goba’ad Discontinuity. The black lines indicate Normal and Boarder faults. WBF-Wonji Fault Belt, BF- Boarder Faults