Ichinsky is a stratovolcano located in Russia, standing at an elevation of 3,596 meters within a subduction zone and continental crust geological setting (> 25 km). Maintained in the Smithsonian Global Volcanism Program records under volcano number 300280, the volcano has a documented history comprising 14 confirmed eruptions spanning from early Holocene chronology to the historical period.
Geographic and Physical Profile
Situated at coordinates 55.678° latitude and 157.718° longitude, Ichinsky is classified as a stratovolcano. Its regional setting features a subduction zone and continental crust framework. The official record documents its maximum elevation at 3,596 meters.
Recorded Eruptions and Timeline
The Smithsonian Global Volcanism Program records 14 confirmed eruptions for Ichinsky. The earliest recorded event in the collection dates to approximately 6950 BCE (with a start year modifier of uncertainty), and the latest confirmed eruption occurred in 1740 CE on the SSW flank with a Volcanic Explosivity Index (VEI) of 0.0, based on reported observations.
Across the extended historical and prehistoric record, eruptions have been identified using various evidence methods, including tephrochronology correlations, calibrated carbon-14 isotopic dating, and direct reports. For instance, an eruption on the SW flank around 5400 BCE reached a Volcanic Explosivity Index (VEI) of 5.0, representing the largest recorded VEI in the available dataset. Another dated event around 1950 BCE carries a chronological uncertainty of 300 years.
Distribution of Activity by Century
Confirmed eruptions at Ichinsky are distributed across multiple centuries and millennia BCE and CE, reflecting intermittent activity throughout its timeline:
- 70th century BCE: 1 confirmed eruption
- 62nd century BCE: 1 confirmed eruption
- 59th century BCE: 1 confirmed eruption
- 57th century BCE: 1 confirmed eruption
- 54th century BCE: 1 confirmed eruption
- 20th century BCE: 1 confirmed eruption
- 6th century BCE: 1 confirmed eruption
- 12th century BCE: 1 confirmed eruption
- 1st century CE: 1 confirmed eruption
- 6th century CE: 1 confirmed eruption
- 8th century CE: 1 confirmed eruption
- 13th century CE: 1 confirmed eruption
- 18th century CE: 1 confirmed eruption
Out of the 14 confirmed eruptions, VEI values are explicitly recorded for 2 events in the structured dataset, including the VEI 5.0 event in the 54th century BCE and the VEI 0.0 event in 1740 CE.
Frequently asked questions
Where is Ichinsky located?
Ichinsky is located in Russia at coordinates 55.678, 157.718, within a subduction zone and continental crust tectonic setting.
What is the elevation of Ichinsky?
Ichinsky has an elevation of 3,596 meters.
When was Ichinsky's latest recorded eruption?
The latest recorded eruption in the official database occurred in 1740 CE on the SSW flank.
How many confirmed eruptions does Ichinsky have?
The Smithsonian Global Volcanism Program records 14 confirmed eruptions for Ichinsky, spanning from 6950 BCE to 1740 CE.
What was the largest recorded VEI for Ichinsky?
The largest recorded Volcanic Explosivity Index (VEI) for Ichinsky is 5.0, associated with an eruption on the SW flank.
Sources and further context
Official datasets support the event-specific facts.