LAUSR

Abstract In 2012, the installation of broadband seismic stations in Iran allowed the beginning of the moment tensor project of Iranian earthquakes by the Iranian Seismological Center (IRSC). In a period of five years, 194 moment tensors with 3.7 ≤ MW ≤ 7.6 were computed based on analysis of seismograms recorded at local and regional distances. Included in the catalog are the moment tensors of 83 events, not modeled by GCMT. A reasonable consistency exists between the mechanisms of common events in the two catalogs. The average moment magnitude difference is 0.1 and the Kagan angle is below 20° for 61% of the earthquakes. The P, B and T axes difference is up to 15°. The moment tensor catalog of Iran shows a decrease of the magnitude of completeness by 0.3 after this study. The number of accepted solutions as a fraction of attempts of the project, with the average of 55%, increased from 40% in 2012 to 68% in 2016, due to the expansions of the seismic networks in Iran. The dataset includes earthquakes from all seismic zones in Iran with the dominance of thrust faulting. The calculated depths in this study are consistent with the subregion seismotectonic conditions of Iran. The information on seven earthquakes with MW 6.0+ and 53 events with 5.0 ≤ Mw