Great Sitkin Volcano
E580957
Great Sitkin Volcano is an active stratovolcano in the central Aleutian Islands of Alaska, known for frequent eruptions and hazardous ash emissions.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Great Sitkin Volcano canonical | 1 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
active volcano
ⓘ
stratovolcano ⓘ subduction-zone volcano ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| distanceToAdak | about 43 km east ⓘ |
| elevation |
1743 m
ⓘ
5718 ft ⓘ |
| eruptionFrequency | frequently active in the 20th and 21st centuries ⓘ |
| eruptionProduct |
ash clouds
ⓘ
blocky lava flows ⓘ lava domes ⓘ |
| eruptionStyle |
effusive lava effusion
ⓘ
explosive eruptions ⓘ |
| geologicAge | Holocene NERFINISHED ⓘ |
| governedBy | State of Alaska NERFINISHED ⓘ |
| hasAlternativeName | Great Sitkin NERFINISHED ⓘ |
| hasCaldera | yes ⓘ |
| hasFeature |
flank lava flows
ⓘ
hydrothermal system ⓘ lava dome ⓘ summit crater ⓘ |
| hasTopographicProminence | high relative to Great Sitkin Island ⓘ |
| hazard |
ashfall
ⓘ
aviation ash hazard ⓘ lahars ⓘ lava flows ⓘ pyroclastic flows ⓘ volcanic gas emissions ⓘ |
| lastEruptionPeriod | 2021–ongoing ⓘ |
| locatedIn |
Alaska
ⓘ
Aleutian Islands NERFINISHED ⓘ Great Sitkin Island NERFINISHED ⓘ North Pacific Ocean NERFINISHED ⓘ |
| monitoredBy |
Alaska Volcano Observatory
NERFINISHED
ⓘ
United States Geological Survey NERFINISHED ⓘ |
| mountainRange | Aleutian volcanic arc NERFINISHED ⓘ |
| nameLanguage | English ⓘ |
| nearbySettlement | Adak NERFINISHED ⓘ |
| notableEruption |
1945 eruption
ⓘ
1974 eruption ⓘ 2021 eruption ⓘ |
| partOf | Alaska Peninsula and Aleutian Islands volcanic region NERFINISHED ⓘ |
| region | central Aleutian Islands ⓘ |
| rockType |
andesite
ⓘ
basaltic andesite ⓘ |
| summitCraterDiameter | about 2.5 km ⓘ |
| tectonicSetting | subduction of the Pacific Plate beneath the North American Plate ⓘ |
| volcanicArcOrBelt | Aleutian Arc NERFINISHED ⓘ |
| volcanoNumber | 311120 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.