A volcano in eastern Russia has erupted for the first time in nearly 500 years.
Experts believe the explosion may be linked to the massive earthquake a few days ago.
The Krashennikov volcano in Kamchatka spewed ash six kilometers (three miles) overnight. The Russian Emergencies Ministry said there was no danger to residential areas.
A few hours later, another earthquake shook Russia, prompting tsunami warnings.
Both developments may be related to the 8.8 magnitude earthquake that struck the area days earlier.
Russian experts have warned that further strong tremors could be recorded for several weeks after the July 30 earthquake - which was among the most powerful ever recorded.
As a result, millions of people have been forced to evacuate.
Sunday's 7.0-magnitude earthquake struck the Kuril Islands and could create waves of up to 18 centimeters, according to Russian authorities.
Residents of three areas in Kamchatka have been urged to stay away from the coast.
The last time the Krasheninikov volcano erupted was in the 15th century, according to Russian authorities.
The Kamchatka Peninsula is located on the so-called "Pacific Ring of Fire" – due to the large number of earthquakes and volcanoes recorded in that area. REL (A2 Televizion)