Colcano has been assigned an orange aviation colour code, indicating a high likelihood of ash emissions and potential hazards to aviation

The eruption was accompanied by a 7.0-magnitude earthquake and prompted a tsunami warning for three areas of Kamchatka. The tsunami warning was later lifted by Russia's Ministry for Emergency Services.

This photo taken from video by Artem Sheldr shows an aerial view of the eruption of the Krasheninnikov volcano associated with the Eastern volcanic belt and is located 200 km (125 miles) northeast of the regional center of Petropavlovsk-Kamchatsky, Russia far east on Aug 3. (AP)