Eruptive activity at Klyuchevskoy volcano intensified after M 8.8 earthquake on July 29, 2025, with a large lava flow descending the WSW flank, continuous lava fountaining, and a significant ash plume. Based on volcanic tremor data and current eruptive behavior, a paroxysmal eruption is considered likely within the next 72 hours.
Significant activity was reported at Klyuchevskoy volcano in Kamchatka, Russia, on October 31, 2023. The Aviation Color Code was raised to Red at 02:34 UTC, and satellite data indicated an ash column reaching up to 14 km (46 000 feet) above sea level at 23:10 UTC.
Activity at Klyuchevskoy volcano in Kamchatka, Russia increased significantly on October 31, 2023, prompting KVERT to raise the Aviation Color Code from Orange to Red. The ash column reached up to 9.8 km (32 152 feet) above sea level and extended for 365 km (226 miles) to the SSE of the volcano.
An explosive-effusive eruption continues at the Klyuchevskoi volcano in Kamchatka, Russia, on October 29, 2023, with ash clouds reaching a height of 10 km (33 000 feet) above sea level. The Aviation Color Code remains at Orange.
A moderate explosive-effusive flank eruption and gas-steam activity continue at Klyuchevskoy volcano, Kamchatka, Russia. KVERT warns the danger of ash explosions up to 4 – 5 km (13 120 – 16 400 feet) a.s.l. from the flank crater and the lava flow front (phreatic…
A moderate flank eruption and a gas-steam activity continue at Klyuchevskoy volcano, Kamchatka, Russia. In addition, a new cinder cone started growing around February 25 with a small lava flow pouring out of it observed on March 2. Satellite data still show a large…
A flank eruption began to form on the northwestern slope of the Klyuchevskoy volcano, Kamchatka, Russia late February 17, 2021, presenting a real danger of mudflows for the Kyuchi village. Bright incandescence was observed at video-data by IVS FEB RAS from 15:23 UTC…
A strong paroxysmal event took place at Klyuchevskoy volcano on January 18, 2021. Explosions sent ash up to 7.5 km (24 600 feet) a.s.l., with eruptive cloud drifting 500 km (310 miles) W of the volcano. According to Yury Demianchuk from Russia's volcanological…
A moderate explosive-effusive eruption continues at the Russian Klyuchevskoy volcano. The Aviation Color Code remains at Orange. The eruption at 04:56 UTC on November 16 ejected ash up to 6 km (20 000 feet) above sea level, the Tokyo VAAC reported. Emissions…
A moderate explosive-effusive eruption continues at Russia's Klyuchevskoy volcano, according to a bulletin issued by the Kamchatka Volcanic Eruption Response Team (KVERT) on November 4, 2020. Strombolian and gas-steam with some ash activity were also observed….
