ИСТИНА

Iturup is the largest island of Kuril Archipelago, SE Russia. Based on a field study (2019) of the Iturup Island coastal zone relief and interpretation of space images taken from 1980 to 2019, we found that even though 85% of the coasts are eroding, but 80% are stable and haven’t undergone changes during the above mentioned period of time. Erosional coasts lose area up to 2–2.5 m/yr. Accumulative coasts in different parts of the island experience multidirectional movements: accumulate 1.5–2.5 m or lose 1–2.7 m yearly. We identified the directions of sediment movement in large bays.