About Diky Greben
Diky Greben is a lava dome(s) rising to 1,040 meters (3,412 feet) in Russia's Northwestern Pacific Volcanic Regions. Its last known eruption was in 350 CE. The volcano has produced 4 recorded eruptions.
Geography & Climate
Diky Greben is located in Russia, within the Kuril Volcanic Arc of the broader Northwestern Pacific Volcanic Regions. Situated at 51.45° N, 156.98° E in the Northern Hemisphere, the volcano lies within a temperate climate zone. With a summit elevation of 1,040 meters above sea level, Diky Greben is a moderately sized peak that remains accessible to hikers and researchers for much of the year. The volcanic landform is characterized as a minor (silicic), which describes the physical shape and structure of the volcanic edifice as observed from the surface.
Geological Context
Diky Greben 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 Diky Greben, 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 dacite, an intermediate to silica-rich volcanic rock. This composition typically produces more viscous magma, leading to more explosive eruptions with ash columns and pyroclastic flows. Andesitic and dacitic magmas build pressure before erupting, which is why volcanoes with this rock chemistry are often associated with Plinian-style eruptions that can send ash tens of kilometers into the atmosphere and disrupt aviation across entire regions.
Eruption History Summary
Diky Greben has 4 recorded eruptions in the geological database, spanning from 5700 BCE to 350 CE. These eruptions span roughly 6,050 years of volcanic history.
GVP Reference Summary
Diky Greben is a lava-dome complex that formed in the center of the 20 x 25 km Pauzhetka caldera, which also contains the Kurile Lake caldera to the east. This large caldera was associated with eruption of the voluminous rhyolitic Golygin ignimbrite during the late Pleistocene, about 443,000 years ago. The initial Diky Greben eruptions took place about 7,600-7,700 years ago, immediately following the Kurile Lake eruption. Most of the volcano, particularly the thick lava flows north and south of Nepriyatnaya Mountain, was formed during an eruption about 1,600 years ago. A total of 9-10 km3 of dacitic and 2-3 km3 of andesitic lavas and tephras were erupted at this time. Two large craters and a few smaller vents were formed after this eruption.
— Smithsonian Institution, Global Volcanism Program
4 Recorded Eruptions
| Year | VEI | Type | Area |
|---|---|---|---|
| 350 | — | Confirmed Eruption | — |
| 2250 BCE | — | Confirmed Eruption | — |
| 3050 BCE | — | Confirmed Eruption | — |
| 5700 BCE | — | Confirmed Eruption | — |
Real-Time Data
USGS Alert Level
Thermal Anomalies
Frequently Asked Questions About Diky Greben
Is Diky Greben an active volcano?+
Diky Greben is not currently classified as active. Its activity evidence is listed as "Eruption Dated." The last known eruption was in 350 CE. However, no volcano is ever considered permanently extinct.
When did Diky Greben last erupt?+
The most recent recorded eruption of Diky Greben occurred in 350 CE. The eruption was classified as a "Confirmed Eruption." Diky Greben has 4 recorded eruptions in total.
How high is Diky Greben?+
Diky Greben has a summit elevation of 1,040 meters (3,412 feet) above sea level. At 1,040 meters, it is a moderately sized volcanic peak, roughly comparable to Mount Vesuvius (1,281m).
What type of volcano is Diky Greben?+
Diky Greben is classified as a Lava dome(s). Lava domes are mounds of viscous lava that pile up around a volcanic vent. They grow by expansion from within and can collapse to produce dangerous pyroclastic flows.
Where is Diky Greben located?+
Diky Greben is located in Russia, in the Northwestern Pacific Volcanic Regions. More specifically, it lies within the Kuril Volcanic Arc. Its exact coordinates are 51.452° latitude, 156.978° longitude.
Is it safe to visit Diky Greben?+
Diky Greben 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.
