Ash fell on 41,699 square miles of territory, according to the regional branch of the Russian Academy of Sciences Geophysical Survey. Scientists described the fallout as the biggest in nearly 60 years.
The village of Klyuchi, which is about 30 miles from the volcano, was covered by a 3-inch layer of dust. Residents posted videos showing the ash cloud plunging the area into darkness.
Kamchatka Gov. Vladimir Solodov said there was no need for mass evacuation but added that some residents who have health issues could be temporarily evacuated.
Shiveluch has two parts, the 10,771-foot Old Shiveluch, and the smaller, highly active Young Shiveluch.
The Kamchatka Peninsula, which extends into the Pacific Ocean about 4,000 miles east of Moscow, is one of the world’s most concentrated area of geothermal activity, with about 30 active volcanoes.