Koryaksky, Kamchatka Peninsula, Russia

KVERT reported that seismic activity at Koryaksky was at background levels during 20-27 March. Gas plumes containing a small amount of ash rose to an altitude of 4 km (13,200 ft) a.s.l. and drifted S, SE, W and NW during the reporting period. On 25 and 26 March, gas-and-ash plumes were also seen on satellite [...]

Koryaksky, Kamchatka Peninsula, Russia

KVERT reported that seismic activity at Koryaksky was elevated on 13 March and at background levels on the other days during 14-20 March. Observers reported that gas plumes containing a small amount of ash rose to an altitude of 4 km (13,200 ft) a.s.l. and drifted in easterly directions during the reporting period. The plumes [...]

Koryaksky, Kamchatka Peninsula, Russia

KVERT reported that seismic activity at Koryaksky was elevated on 6 and 8 March and at background levels on the other days during 7-13 March. Observers reported that gas plumes containing a small amount of ash rose to an altitude of 4 km (13,200 ft) a.s.l. and drifted in multiple directions during the reporting period. [...]

Koryaksky, Kamchatka Peninsula, Russia

KVERT reported that seismic activity at Koryaksky was above background levels on 3 March and at background levels on the other days during 27 February-6 March. Observers reported that during 3-5 March gas plumes containing a small amount of ash rose to an altitude of 3.7 km (12,100 ft) a.s.l. and drifted ENE, E, and [...]

Koryaksky, Kamchatka Peninsula, Russia

KVERT reported that during 25 February-4 March seismic activity at Koryaksky was at background levels. Observers reported that during 3-4 March gas plumes containing a small amount of ash rose to an altitude of 3.7 km (12,100 ft) a.s.l. and drifted more than 200 km ENE. Ash deposits were seen at the summit. Ash deposits [...]

Koryaksky, Kamchatka Peninsula, Russia

KVERT reported that during 23-24 December gas-and-steam plumes from Koryaksky containing a small amount of ash were detected on satellite images. On 24 December observers from the Nalychevo valley reported that a dark plume rose 200-300 m from a fumarolic vent (about 3 km a.s.l.) on the NW flank of Koryaksky and a boom was [...]