Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Trident
Trident volcano, seen here from Baked Mountain to its NW, was initially named for its three prominent summits. A series of eruptions from 1953 until 1968 constructed a fourth cone, which forms the prominent, smoother-surfaced peak at the right. The 3 peaks of Trident at the left are overlapping, glacially eroded stratovolcanoes. As many as 23 lava domes are found on the Trident volcanic complex. Fresh, blocky andesitic lava domes radiate from the new cone on the SW flank. The 1912 Novarupta lava dome is visible at the lower center. Photo by Game McGimsey (U.S. Geological Survey, Alaska Volcano Observatory).
Volcano Number:312160
Volcano Name:Trident
Country:United States
Volcano Type:Stratovolcano
Last Eruption:1974 CE
Elevation:1864m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:0
Pop. within 10km:0
Pop. within 30km:0
Pop. within 100km:117
Latitude:58.236
Longitude:-155.1



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
312160 Trident 20092 Confirmed Eruption 3 SW flank Historical Observations 1968/11/13 1968/11/13
312160 Trident 20223 Confirmed Eruption 1 Historical Observations 1913
312160 Trident 20224 Confirmed Eruption Historical Observations 1949
312160 Trident 20225 Confirmed Eruption 2 ? Volcano Uncertain: attributed to Trident 1950/7/2 1950/8/18
312160 Trident 20226 Confirmed Eruption 3 SW flank (1100 m) Historical Observations 1953/2/15 1954/10/5
312160 Trident 20227 Confirmed Eruption 2 Volcano Uncertain: attributed to Trident 1956/9/8 1956/9/9
312160 Trident 20228 Confirmed Eruption 2 SW flank Historical Observations 1957/7/2 1960/8/10
312160 Trident 20229 Confirmed Eruption 2 SW flank (1100 m) Historical Observations 1961/6/30
312160 Trident 20230 Confirmed Eruption 3 SW flank Historical Observations 1962/6/9 1962/6/9
312160 Trident 20231 Confirmed Eruption 3 SW flank Historical Observations 1963/4/1 1963/4/3
312160 Trident 20232 Confirmed Eruption 3 SW flank Historical Observations 1963/10/17 1963/11/17
312160 Trident 20233 Confirmed Eruption 3 ? SW flank Historical Observations 1964/5/31
312160 Trident 20234 Confirmed Eruption 0 SW flank Historical Observations 1966/7/2
312160 Trident 20235 Confirmed Eruption 3 SW flank Historical Observations 1967/9/5 1968/2/25
312160 Trident 20236 Confirmed Eruption 3 SW flank Historical Observations 1974/7/15
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.


Data from the Earthchem Library
Title Author Release Date DOI Link
Fumarole Composition of Mount Mageik and Trident Volcano, July 2013 Lopez, Taryn 2017-06-01 10.1594/IEDA/100598 Details
Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.