Results of seismological data processing for the territory of Armenia

The distribution of earthquake hypocenters in the territory of Armenia is obtained based on data from seismological bulletins for 1970–2012. It is shown that in addition to crustal earthquakes, there are deep earthquakes with a hypocenter depth down to 300 km. The seismicity is concentrated primarily in the northwest of the republic in the region adjacent to the Javakheti Upland. The positions of the main shock and the aftershocks of the December 1988 Spitak earthquake are determined separately. It is shown that the aftershocks of this earthquake cover a big area, extending to a depth of 100 km, although most of them are located at a depth of ~27 km.