Аннотация:The characteristics of the attenuation of seismic coda waves in the Fergana Basin are studied. Thestudy analyzes short-period coda waves of local earthquakes recorded by frequency-selective seismic stationsin 1960–1984 and digital seismograms of more than 100 earthquakes that occurred in the Fergana Basin from2005 to 2021 and were recorded by the stations of the KNET network. Detailed analysis of variations in theattenuation field within the Fergana Basin showed that it is characterized by a mosaic structure that changeswith depth. This attenuation field structure is consistent with the structure of the velocity field obtained byseismic tomography, as well as with the conclusions drawn from analysis of the density model. The featuresof the seismicity distribution relative to the position of blocks and weakened zones at different depths are considered. The correlation between contrasting objects of the attenuation field in the Fergana Basin and objectsin the pre-Mesozoic strata of contrasting petrophysical characteristics has been revealed. Oil and gas fields inthe Fergana Basin are associated with zones of strong attenuation, which are probably conduits for migrationof fluids, including hydrocarbons. A possible explanation is also considered for the increased sensitivity of theatmospheric baric field near the Namangan hydrometeorological station to processes associated with preparation and occurrence of significant seismic events here.