The paper presents data that describe the Kuril Island Arc volcanic activity over the 2012-2015 period collected using satellite monitoring and visual observations, as well as the results of field studies at the active volcanoes. The authors analyzed eruptions of Ivan Grozny, Kudryavy (Iturup Island), Snow (Chirpoi Island), Chirinkotan (Chirinkotan Island), Sinarka (Shiashkotan Island), Chikurachki (Paramushir Island), and Alaid (Atlasov Island) volcanoes.

Data showing the activity of the volcanoes in the Kurilе Island Arc in the XXI century are given. The volcanic eruptions at the volcanoes Chikurachki, Chirinkotan, Ebeko, Sarychev Peak, Ekarma, Ivan Grozny, Alaid and Snow were considered. Increase of steam-gas activity was observed at the volcanoes Sinarka (Shiashkotan Isl.), Berg (Urup Isl.), Severgin Peak (Kharimkotan Isl.) and Kudryavy (Iturup Isl.). It is shown that the brief (from a few hours to several days) explosive eruptions of weak and moderate intensity (VEI = 0–3) prevailed. The most active were volcanoes Chikurachki (8 events) and Ebeko (4 events) (Paramushir Isl.). The strongest eruption during the reporting period was explosiveeffusive eruption of Sarychev Peak volcano in 2009; the longest were effusive eruptions of Snow Volcano (Chirpoi Isl.) in 2012–2016. The total volume of erupted material for the years 2000–2016 does not exceed 0.3–0.4 km3.