Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Isanotski
Glaciers drape the ruggedly dissected upper flanks of Isanotski volcano and its dramatic summit pinnacles. Isanotski, locally known as Ragged Jack, is at the center of an E-W-trending group of three volcanoes on Unimak Island. Four poorly documented historical eruptions were noted in the 18th and 19th centuries. Some or all of these eruptions, however, could have been from neighboring Shishaldin volcano, and historical eruptions of Isanotski must be considered unlikely, given the extreme degree of erosional dissection. Photo courtesy of Alaska Volcano Observatory, 1994.
Volcano Number:311370
Volcano Name:Isanotski
Country:United States
Volcano Type:Stratovolcano
Elevation:2446m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:0
Pop. within 10km:0
Pop. within 30km:44
Pop. within 100km:372
Latitude:54.765
Longitude:-163.723



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
311370 Isanotski 20102 Uncertain Eruption 3 ^ 1795
311370 Isanotski 20103 Uncertain Eruption 4 1825/3/10
311370 Isanotski 20104 Uncertain Eruption 2 ? 1830
311370 Isanotski 20105 Uncertain Eruption 1831 1831/5/6
311370 Isanotski 20106 Uncertain Eruption 1845
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.


Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal
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Data from the SESAR Database
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Data from the MaGa Database
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