About Kronotsky
Kronotsky is a stratovolcano rising to 3,482 meters (11,424 feet) in Russia's Northwestern Pacific Volcanic Regions. The volcano is currently active, with its most recent eruption in 3350 BCE. The volcano has produced 2 recorded eruptions, with a maximum Volcanic Explosivity Index (VEI) of 3.
Geography & Climate
Kronotsky is located in Russia, within the Eastern Kamchatka Volcanic Arc of the broader Northwestern Pacific Volcanic Regions. Situated at 54.75° N, 160.53° E in the Northern Hemisphere, the volcano lies within a temperate climate zone. At 3,482 meters above sea level, Kronotsky rises above the surrounding terrain into montane or subalpine conditions. The elevation creates distinct ecological zones along its flanks, from forested lower slopes to exposed rocky terrain near the summit. The volcanic landform is characterized as a composite, which describes the physical shape and structure of the volcanic edifice as observed from the surface.
Geological Context
Kronotsky sits in a subduction zone, where one tectonic plate dives beneath another, creating intense heat and pressure that generates magma. Subduction zones are responsible for many of the world's most explosive volcanoes and deadliest eruptions. For communities in Russia near Kronotsky, this tectonic setting means the volcano is capable of producing powerful explosive eruptions, pyroclastic flows, and lahars that can threaten populated areas within tens of kilometers of the summit. The dominant rock type is basalt / picro-basalt, a dark, fine-grained volcanic rock that forms from rapidly cooling, low-viscosity lava. Basaltic eruptions tend to be less explosive and produce fluid lava flows that can travel long distances. While less immediately dangerous than explosive eruptions, basaltic lava flows can destroy structures and infrastructure in their path, and volcanic gases released during these eruptions can affect air quality over a wide area.
Eruption History Summary
Kronotsky has 2 recorded eruptions in the geological database, spanning from 4050 BCE to 3350 BCE. The most powerful recorded event was a severe eruption capable of regional ash fall and pyroclastic flows in 4050 BCE, reaching VEI 3 on the Volcanic Explosivity Index. These eruptions span roughly 700 years of volcanic history.
Significance
With a maximum recorded VEI of 3, Kronotsky has produced eruptions capable of generating pyroclastic flows and significant ash fall in the surrounding area. While not among the largest eruptions globally, VEI 3 events pose serious hazards to local populations and can disrupt regional air travel.
GVP Reference Summary
The symmetrical Kronotsky stratovolcano on the Kamchatka Peninsula lies between the Pacific Ocean and Lake Kronotsky. Extensive lava flows on the south side of the volcano dammed the Listvenichnaya River to form the lake. A steep summit ridge forms the peak above flanks that are dissected by radial valleys up to 200 m deep. Small cinder cones are present on the lower N and S flanks, 5-10 km from the summit. Lavas have been dominantly basaltic, with the exception of the small basaltic andesite summit lava extrusion and a flank lava flow. Fumarolic activity has been reported from near the summit. Gorbach et al. (2024) found scoria horizons associated with explosive eruptions dated to ~5,200-5,400 and ~6,000 years BP.
— Smithsonian Institution, Global Volcanism Program
2 Recorded Eruptions
| Year | VEI | Type | Area |
|---|---|---|---|
| 3350 BCE | 2 | Confirmed Eruption | — |
| 4050 BCE | 3 | Confirmed Eruption | — |
Real-Time Data
USGS Alert Level
Thermal Anomalies
Frequently Asked Questions About Kronotsky
Is Kronotsky an active volcano?+
Kronotsky is not currently classified as active. Its activity evidence is listed as "Eruption Dated." The last known eruption was in 3350 BCE. However, no volcano is ever considered permanently extinct.
When did Kronotsky last erupt?+
The most recent recorded eruption of Kronotsky occurred in 3350 BCE with a Volcanic Explosivity Index (VEI) of 2. The eruption was classified as a "Confirmed Eruption." Kronotsky has 2 recorded eruptions in total.
How high is Kronotsky?+
Kronotsky has a summit elevation of 3,482 meters (11,424 feet) above sea level. At 3,482 meters, it is comparable in height to many significant mountain peaks and stands well above the tree line.
What type of volcano is Kronotsky?+
Kronotsky is classified as a Stratovolcano. Stratovolcanoes (also called composite volcanoes) are steep, conical volcanoes built up by many layers of hardened lava, tephra, and volcanic ash. They are among the most common and dangerous types, known for explosive eruptions.
Where is Kronotsky located?+
Kronotsky is located in Russia, in the Northwestern Pacific Volcanic Regions. More specifically, it lies within the Eastern Kamchatka Volcanic Arc. Its exact coordinates are 54.753° latitude, 160.533° longitude.
Is it safe to visit Kronotsky?+
Kronotsky can generally be visited, but as with any volcano, visitors should check local conditions and any advisory notices before traveling. Russia may have specific regulations for accessing volcanic areas. Guided tours are often the safest and most informative way to experience a volcano.
