Аннотация:The earthquakes and aftershock sequences catalogue of 13 moderate earthquakesoccurred in the Tian Shan and the Pamir Mountains from 1983 till 1997 have been examinedfrom the point of view of non-equilibrium thermodynamics using Tsallis statistics and itscompliance with Omori-Utsu power-law. It has been shown that the earthquake sequence is thesystem with memory and long-range correlations. The Tsallis parameter q for the aftershocksequences is larger than the q, calculated for all the earthquake catalogue, which indicates thepreservation of increased long-range correlations during the aftershock sequence. Dynamicdefinition of the parameter q of the four events has demonstrated the sharp increase of the longrange correlations in the target region before the main event and the sharp decrease straight afterit followed by return to the average value observed before the mainshock. It has been illustratedthat the parameters of the researched aftershock sequences are described by the powerdependences and follow the Omori-Utsu law.