On 23 Feb. 2020, Iran- Turkey border near to Qotour city has been affected by two earthquakes (Mn=5.7 ،Mn=5.9) and their aftershocks. Primary location of these events has been reported with large azimuthal gap (except in large events) by Iranian Seismological Center(IRSC) and disaster and emergency management authority of Turkey(AFAD), individually. To increase location accuracy of events, we merged information of two catalogues and then we applied double difference method to relocate them relatively. Results show meaningful reduction in spatial distribution and better adaption of events with assumed causative fault of Bashkala. Average RMS value of relocated events decreased to 0.16 from 0.37(IRSC) and 0.42(AFAD).