Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Fourpeaked
Glacier-covered Fourpeaked volcano in NE Katmai National Park is seen here from the south with the Swikshak River in the foreground. Isolated andesitic outcrops surrounded by the Fourpeaked Glacier form the summit. Holocene eruptions at Fourpeaked had not been confirmed prior to its first historical eruption in September 2006. Photo by Jennifer Adleman, 2006 (U S Geological Survey, Alaska Volcano Observatory).
Volcano Number:312260
Volcano Name:Fourpeaked
Country:United States
Volcano Type:Stratovolcano
Last Eruption:2006
Elevation:2105m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:0
Pop. within 10km:0
Pop. within 30km:0
Pop. within 100km:165
Latitude:58.77
Longitude:-153.672



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
312260 Fourpeaked 20250 Confirmed Eruption 2 Fissure trending N from summit Historical Observations 2006/9/17 2006/9/17
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Emission ID SO2 Kilotons Start Date End Date
224 1 2006/09/17 2006/09/17


Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
Location: Fourpeaked (View Details at MaGa DB)
Description: Fourpeaked Volcano is an active stratovolcano in Alaska. The Alaska Volcano Observatory currently rates Fourpeaked Volcano as Aviation Alert Level Green and Volcanic-alert Level Normal. It is nearly completely covered by Fourpeaked Glacier.
Hazard Description: not reporetd
Type: volcanic_plume
Region: Alaska, USA
Country: United States
Volcanic Complex: Fourpeaked
Gas Flux Data:
Measurement Name Detail Specie Flux Std. Dev. Unit of Measure
Fourpeaked_23092006 Detail SO2 2353 0 Mg/d
Fourpeaked_23092006 Detail H2S 140 0 Mg/d
Fourpeaked_18112006 Detail SO2 1000 0 Mg/d
Fourpeaked_18112006 Detail H2S 27 0 Mg/d
Fourpeaked_18112006 Detail CO2 595 0 Mg/d
Fourpeaked_24092006 Detail SO2 1620 0 Mg/d
Fourpeaked_24092006 Detail H2S 74 0 Mg/d
Fourpeaked_24092006 Detail CO2 340 0 Mg/d