The volcano is belching steam and ash 7 kilometers high. Rock falls were seen on the slopes.

Another volcano - Karymsky located 140 km north from the city of Petropavlovsk-Kamchatsky - started eruption on Kamchatka. For one day seismologists have detected nearly 100 separate shocks.

The Kamchatka Branch of the Geophysical Service of the Russian Academy of Sciences told Vostok Media an open spew of lava and volcanic bombs has not yet been seen, but several rock falls caused by the volcano's vibration were seen on its slopes.

The ash aerosol ejected by the volcano poses a danger for aviation as can reduce visibility to zero. It is also harmful for the toxic substances it contains. Ten years ago ash spews moved by the wind onto the closely located Karymskoye lake made it lifeless having poisoned its entire water biosphere.