Continuous volcanic ash observed at Sheveluch volcano reaches 10 100 m (33 000 feet) a.s.l., Russia

Volcanic ash from Sheveluch volcano in Russia was observed at 10 100 m (33 000 feet) above sea level at 20:20 UTC on March 27, 2026. The advisory was issued by the Tokyo VAAC at 21:00 UTC on March 27, 2026.

According to the VAAC advisory, the ash cloud was observed between the surface and FL330, corresponding to 10 100 m (33 000 feet) above sea level, moving southwest at 56 km/h (35 mph). Satellite imagery from KBGS and Himawari-9 confirmed the continuous volcanic ash emission. No Aviation Color Code was stated in this advisory.

The Smithsonian / USGS Weekly Volcanic Activity Report for March 11–18, 2026, notes that Sheveluch exhibited ongoing eruptive activity, with ash plumes from explosions on March 11–12 rising to 8 000 m (19 700 feet) and up to 11 000 m (36 100 feet) on March 16, drifting over long distances east and northeast. The Aviation Color Code remained at Orange.

Sheveluch is a large, active stratovolcano located in Kamchatka, Russia. Known hazards at Sheveluch include pyroclastic flows, ashfall, and lava domes collapse, which can endanger aviation and sparsely populated settlements in the region, with the nearest towns located more than 50 km (31 miles) away.