A system of 22 km long surface rupture produced by paleoearthquakes has been mapped for the first time along the Kubadru Fault which delineates the Kokorya Basin in the north. The ruptures morphology record reverse and right-lateral strike-slip geometry of the Kubadru Fault. The ruptures pattern represent a combined effect of four paleoearthquakes, including three events in the past 1.4 kyr. The magnitudes of the earthquakes could range from 6.7 to 7.6. The revealed structure of the Kubadru Fault Zone consists of counter-dipping reverse faults. Motions on two reverse fault systems maintained thrusting of the Kurai Range on the basin sediments and caused the growth of a foreberg between the basin and the range.
