Why in news?
The Shiveluch (Sheveluch) volcano in Russia’s Kamchatka Peninsula continued its ongoing eruptive phase in early June 2026, sending ash plumes up to 10.8 kilometres into the sky. Monitoring agencies kept the aviation colour code at Orange, indicating heightened activity.
Background
Shiveluch is a stratovolcano located at the northern end of the Kuril–Kamchatka volcanic arc. Rising to about 3,283 metres, it formed around 60–70 thousand years ago and is one of the largest and most active volcanoes on the peninsula. The summit is truncated by a 9 kilometre wide caldera, within which a lava dome has been growing since 1999.
Geological features and eruptions
- Frequent eruptions: Shiveluch has experienced at least 60 major eruptions over the last 10,000 years. Its magmas are rich in water and gases, making them highly explosive.
- Caldera and lava dome: A catastrophic south‑flank collapse in 1964 created a deep crater and generated pyroclastic flows that travelled nearly 100 kilometres. Ongoing dome growth within the caldera periodically collapses, producing ash plumes and debris avalanches.
- Recent activity: Since August 1999 the volcano has been continuously active. Weekly reports in June 2026 noted ash plumes rising to 8–10 km and drifting hundreds of kilometres. In April 2023 a powerful eruption sent ash to 16–17 km, coating villages with volcanic dust.
Scientific importance and hazards
Shiveluch provides valuable insights into subduction‑zone volcanism and the role of water in generating explosive magmas. Its eruptions pose hazards to nearby communities, aviation and climate, as ash plumes can disrupt air routes and deposit ash over large areas.
Conclusion
The sustained activity of Shiveluch reminds us that volcanoes are dynamic systems requiring constant monitoring. Advances in remote sensing and early‑warning systems are essential to reduce risks for communities living in the shadow of such fiery giants.
Source: IS