Possible sources of intense Geomagnetically Induced Currents (GIC) registered at auroral zone latitudes from 62° to 69° GLAT° in the north-west of Russia were studied. Our analysis was carried out according to the data of the direct measurements from 3 stations (Vykhodnoy, Loukhi and Kondopoga) during strong storm on 10–11 October 2024. It was shown that main GIC sources were interplanetary shock (IS), substorms development and geomagnetic pulsations. Besides, the GIC peak of ~30 A at VKH station recorded ~15:15 UT at the onset of the magnetic storm and was associated with the interplanetary shock wave. Other GIC peaks during the development of the October storm were intense ~7–18 A, but still half as strong as the initial GIC burst. It was also demonstrated that the sources of intense GICs ~7–18 A in the evening and night sectors were the magnetic disturbances during substorms, while intense GICs ~8–12 A in the morning sectors were caused by Pc5/Pi3 geomagnetic pulsations observed simultaneously with the substorm development at the morning sector.