Novarupta
| Novarupta | |
|---|---|
Novarupta's lava dome in June 2011 | |
| Highest point | |
| Elevation | 2,759 ft (841 m) |
| Listing | Volcanoes in the United States |
| Coordinates | 58°16′0″N 155°9′24″W / 58.26667°N 155.15667°W |
| Geography | |
Map showing volcanoes of the Alaska Peninsula, with Novarupta towards the northeast | |
| Country | United States |
| State | Alaska |
| Protected area | Katmai National Park and Preserve |
| Parent range | Aleutian Range |
| Topo map | USGS Mount Katmai B-4 |
| Geology | |
| Mountain type | Caldera with lava dome |
| Volcanic arc | Aleutian Arc |
| Last eruption | June to October 1912 |
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Novarupta is a volcano located on the Alaska Peninsula on a slope of Trident Volcano in Katmai National Park and Preserve, about 290 miles (470 km) southwest of Anchorage. Novarupta was formed in 1912, during the largest volcanic eruption of the 20th century, in which it released 30 times the volume of magma of the 1980 eruption of Mount St. Helens.