Sarychev Peak
volcano

Sarychev Peak (Russian: вулкан Пик Сарычева, Vulkan Sarycheva, variants: Japanese: 芙蓉山 Fuyō Mountain, Fuyō-san, Fuyō-yama, Fuyo-zan, Huyō San, Japanese: 松輪富士 Matsuwa-fuji) is an active stratovolcano covering almost the entirety of Matua Island in the Kuril Islands, Russia. It is a young, highly symmetrical stratovolcanic cone. The height of the plume during the 2009 eruption was estimated at 12 to 18 kilometres (7.5 to 11.2 mi).
History
The peak was named after admiral Gavril Sarychev of the Imperial Russian Navy.
2009 eruption
The volcano erupted June 11–21, 2009, sending out ash plumes. As the volcano is near some of the main air routes between East Asia and North America, there was some disruption to air traffic.
During an early stage of the eruption, on June 12, 2009, the International Space Station passed overhead and astronauts photographed the event. A hole in the overhead clouds, possibly caused by the shock wave from the explosion, allowed a clear view of the plume and pyroclastic flow down the sides of the mountain. A cap-like pileus cloud is visible atop the rising column.
Sarychev Peak previously erupted in 1760, 1805, 1879, 1923, 1927, 1928, 1930, 1932, 1946, 1954, 1960, 1965, 1976, 1986 and 1989.
The public source identifies “Sarychev Peak” as volcano. This brief keeps that definition visible, then builds a research path around Sarychev, Peak and volcano.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Sarychev Peak”, the useful work is to connect “volcano” to the records capable of establishing context and consequence.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 16, 2026. The linked authority identifier is Q288403. Authority coordinates are 48.091, 153.201. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2009, 1760, 1805 and 1879.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Sarychev Peak”, its source revision and the description used here.
- Expand the search: follow Sarychev Peak primary sources, Sarychev Peak archive and Sarychev research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Sarychev Peak”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Sarychev Peak” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.