Data from the Global Volcanism Program of the Smithsonian Institution
Details for: West Crater
West Crater is a little-known Quaternary volcanic field in the southern Cascades of Washington between Mount St. Helens and Mount Hood. West Crater itself, seen here from the NE, is an andesitic dome with two small lava flows, one of which forms the bare area at the right center. The 290-m-high dome was formed about 8060 years ago on the floor of a cirque carved into older Tertiary volcanic rocks. The West Crater volcanic field consists of a series of small shield volcanoes and cinder cones along a NW-SE zone. Photo by Lee Siebert, 2002 (Smithsonian Institution).
Volcano Number:321060
Volcano Name:West Crater
Country:United States
Volcano Type:Volcanic field
Last Eruption:5750 BCE
Elevation:1329m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:505
Pop. within 10km:505
Pop. within 30km:14359
Pop. within 100km:2225092
Latitude:45.88
Longitude:-122.08



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
321060 West Crater 20562 Confirmed Eruption 2 ? West Crater, Hackamore Creek cone Radiocarbon (uncorrected) -6110
321060 West Crater 20563 Confirmed Eruption 2 ? Bare Mountain Radiocarbon (uncorrected) -5750
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


Data from the SESAR Database


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