This article contains a list of volcanoes in the United States and its territories.
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Malumalu | - | - | 14°36′29″S169°47′06″W / 14.607943°S 169.784919°W | Last 8,000 years |
Ta‘u- | 931 | 3054 | 14°13′48″S169°27′14″W / 14.23°S 169.454°W | 30,000 years ago [15] |
Ofu-Olosega | 639 | 2096 | 14°10′30″S169°37′05″W / 14.175°S 169.618°W | 1866 unnamed submarine cone eruption |
Tutuila | 653 | 2142 | 14°17′42″S170°42′00″W / 14.295°S 170.70°W | 440 CE [16] |
Vailulu'u | -592 | -1842 | 14°17′42″S170°42′00″W / 14.295°S 170.70°W | 2003 west of unnamed submarine caldera and nafauna |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Dotsero | 2,230 | 7,316 | 39°39′40″N107°03′22″W / 39.661°N 107.056°W | 2200 BC ± 300 years |
La Garita Caldera | 4,274 | 14,022 | 37°43′36″N106°46′28″W / 37.72667°N 106.77444°W | 26.3 Ma |
Never Summer Mountains | 3,946 | 12,945 | 40°28′10″N105°53′42″W / 40.46944°N 105.89500°W | 24 to 29 million years ago |
Summer Coon | - | - | 37°46′51″N106°22′09″W / 37.78083°N 106.36917°W | 24 to 34 million years ago |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Big Southern Butte | 2298 | 7540 | 43°14′N113°01′W / 43.24°N 113.01°W | 300,000 years ago |
Blue Creek | - | - | - | - |
Craters of the Moon | 2005 | 6578 | 43°25′N113°30′W / 43.42°N 113.50°W | 130 BC ± 50 years |
Yellowstone Plateau volcanic field | 2805 | 9203 | 44°28′16″N110°30′07″W / 44.471031°N 110.501862°W | 70,000 years ago (magmatic) / 1350 BC ± 200 years (hydrothermal) [21] |
Juniper Buttes | 1905 | 6250 | 44°12′N111°32′W / 44.20°N 111.53°W | - |
Menan Buttes | 1713 | 5619 | 43°36′N111°30′W / 43.60°N 111.5°W | 10,000 years ago |
Shoshone Volcano | - | - | - | - |
Split Butte | - | - | 44°15′N111°44′W / 44.25°N 111.73°W | - |
The Great Rift | - | - | 43°27′42″N113°33′46″W / 43.46167°N 113.56278°W | - |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Hicks Dome [22] | 203 | 666 | 37°32′N88°22′W / 37.53°N 88.37°W | 400-345 million years ago |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Door Point Volcano | -2200 | -7200 | - | 74-90 million years ago |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Porcupine Mountains Central-Volcano | 595 | 1,958 | 46°46′52″N89°40′51″W / 46.78111°N 89.68083°W | 1.093 billion years ago [23] |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Jackson Volcano | -880 (from surface) | -2900 | 32°18′0″N90°10′19″W / 32.30000°N 90.17194°W | 65 million years ago |
Midnight Volcano | -1110 (from surface) | -3641 | 33°02′57″N90°34′25″W / 33.04904°N 90.573494°W | 66 million years ago |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Taum Sauk Caldera | 540 | 1772 | 37°31′44″N90°47′10″W / 37.5288°N 90.7862°W | 1.485 billion years ago |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Cottonwood Caldera | - | - | - | 15.70 million years ago |
Crater Flat (Southwest Nevada Volcanic Field) | - | - | 36°47′N116°34′W / 36.783°N 116.567°W | 80,000 years ago |
Indian Peak-Caliente Caldera Complex | - | - | 38°00′00″N114°00′00″W / 38.000°N 114.000°W | 18 million years ago |
Jessup area | - | - | 39°56′N118°52′W / 39.933°N 118.867°W | Jurassic |
Lunar Crater volcanic field | - | - | 38°N116°W / 38°N 116°W | 38,100 ± 10,000 years ago |
McDermitt Caldera | 2078 | 6816 | 42°00′05″N117°59′48″W / 42.00139°N 117.99667°W | 16.39 ± 0.02 million years ago |
Steamboat Springs | 1415 | 4642 | 39°22′30″N119°43′12″W / 39.375°N 119.72°W | 1.14 million years ago |
Soda Lakes | 1251 | 4104 | 39°53′N119°27′W / 39.883°N 119.450°W | Holocene |
Virgin Valley Caldera | - | - | - | 16.38 million years ago |
Yucca Mountain | 2044 | 6707 | 36°56′N116°29′W / 36.933°N 116.483°W | 80,000 years ago |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Pawtuckaway Mountains | - | - | 43°06′39″N71°11′11″W / 43.11083°N 71.18639°W | Cretaceous |
Ossipee Mountains | - | - | 43°44′37″N71°16′26″W / 43.74361°N 71.27389°W | Cretaceous |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Rutan Hill | 310 | 1,020 | 41°14′43″N74°40′35″W / 41.24528°N 74.67639°W | Ordovician |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Hillsborough Caldera | - | - | 36°4′24″N78°58′52″W / 36.07333°N 78.98111°W | 630 million years ago [24] |
Pond Mountain Volcanic Center | 1517.904 | 4980 | 36°34′29.1″N81°39′10.7″W / 36.574750°N 81.652972°W | 760 million years ago [25] |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Pilot Knob | 169 | 576 | 30°09′43″N97°42′22″W / 30.162°N 97.706°W | 79 to 83 million years ago (late Cretaceous) |
Inge Mountain | 125 | 410 | 29°10′52″N99°45′58″W / 29.181°N 99.766°W | Eocene or possibly Miocene |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Bald Knoll Volcanic Field | 2,135 | 7,005 | 37°19′41″N112°24′29″W / 37.328°N 112.408°W | 300,000 years ago or later |
Black Rock Desert Volcanic Field | 1,800 | 5,904 | 38°58′12″N112°30′00″W / 38.970°N 112.500°W | 1290 AD ± 150 years |
Fumarole Butte | 1,609 | 5,279 | 39°36′54″N112°48′11″W / 39.615°N 112.803°W | 900,000 years ago |
Indian Peak-Caliente Caldera Complex | - | - | 38°00′00″N114°00′00″W / 38.000°N 114.000°W | 18 million years ago |
Marysvale Volcanic Field | 3,694 | 12,137 | 38°30′00″N112°30′00″W / 38.500°N 112.500°W | 19 million years ago |
Markagunt Plateau Volcanic Field | 2,840 | 9,318 | 37°37′01″N112°49′30″W / 37.617°N 112.825°W | 1050 AD |
Santa Clara Volcanic Field | 1,465 | 4,806 | 37°15′25″N113°37′30″W / 37.257°N 113.625°W | 32,000 years ago |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Mole Hill | 577 | 1,893 | 38°26′55″N78°57′12″W / 38.44861°N 78.95333°W | 47 million years ago (early Eocene) |
Trimble Knob | 952 | 3,123 | 38°24′17″N79°35′16″W / 38.40472°N 79.58778°W | 35 million years ago (late Eocene) |
Mount Rogers Volcanic Center | 1,750 | 5,730 | 36°39′35″N81°32′40″W / 36.65972°N 81.54444°W | 760 million years ago (Tonian) |
Battle Mountain | 354 | 1,162 | 38°39′26″N78°3′36″W / 38.65722°N 78.06000°W | 704 million years ago (Cryogenian) |
Name | Elevation | Location | Last eruption | |
---|---|---|---|---|
meters | feet | Coordinates | ||
Yellowstone Plateau volcanic field | 2,805 | 9,203 | 44°28′16″N110°30′07″W / 44.471031°N 110.501862°W | 70,000 years ago (magmatic) / 1350 BC ± 200 years (hydrothermal) [21] |
Mount Katmai is a large active stratovolcano on the Alaska Peninsula in southern Alaska, located within Katmai National Park and Preserve. It is about 6.3 miles (10 km) in diameter with a central lake-filled caldera about two by three miles in size, formed during the Novarupta eruption of 1912. The caldera rim reaches a maximum elevation of 6,716 feet (2,047 m). In 1975 the surface of the crater lake was at an elevation of about 4,220 feet (1,286 m), and the estimated elevation of the caldera floor is about 3,400 ft (1,040 m). The mountain is located in Kodiak Island Borough, very close to its border with Lake and Peninsula Borough. The volcano has caused ten known fatalities due to gas exposure.
Mount Spurr (Dena'ina: K'idazq'eni) is a stratovolcano in the Aleutian Arc of Alaska, named after United States Geological Survey geologist and explorer Josiah Edward Spurr, who led an expedition to the area in 1898. The Alaska Volcano Observatory (AVO) currently rates Mount Spurr as Level of Concern Color Code Green. The mountain is known aboriginally by the Dena'ina Athabascan name K'idazq'eni, literally 'that which is burning inside'.
Mount Pavlof or Pavlof Volcano is a stratovolcano of the Aleutian Range on the Alaska Peninsula. It has been one of the most active volcanoes in the United States since 1980, with eruptions recorded in 1980, 1981, 1983, 1986–1988, 1996–1997, 2007, 2013, twice in 2014, 2016, and is currently erupting as of August 2021. Basaltic andesite with SiO2 around 53% is the most common lava type. The volcano is monitored by the Alaska Volcano Observatory- a joint program of the United States Geological Survey (USGS), the Geophysical Institute of the University of Alaska Fairbanks (UAFGI), and the State of Alaska Division of Geological and Geophysical Surveys (ADGGS). With a threat score of 95, the threat from future eruptions is considered to be high; much of this threat comes from the possibility of disruption of nearby air routes by large releases of ash. The mountain currently has basic real-time monitoring, but the USGS would like to improve instrumentation at the site. The mountain shares a name with the nearby Pavlof Sister, which last erupted in 1786.
Bogoslof Island or Agasagook Island is the summit of a submarine stratovolcano at the south edge of the Bering Sea, 35 miles (56 km) northwest of Unalaska Island of the Aleutian Islands chain. It has a land area of 319.3 acres (1.292 km2) and is uninhabited. It is 1,040 meters (3,410 ft) long and 1,512 m (4,961 ft) wide, with a peak elevation of 490 feet (150 m). The stratovolcano rises about 6,000 ft (1,800 m) from the seabed, but the summit is the only part that projects above sea level. The island is believed to be relatively new, with the volcano being entirely below sea level before 1796, and most of the presently 300-acre island being formed by eruptions since 1900.
Mount Cleveland is a nearly symmetrical stratovolcano on the western end of Chuginadak Island, which is part of the Islands of Four Mountains just west of Umnak Island in the Fox Islands of the Aleutian Islands of Alaska. Mt. Cleveland is 5,675 ft (1,730 m) high, and one of the most active of the 75 or more volcanoes in the larger Aleutian Arc. Aleutian natives named the island after their fire goddess, Chuginadak, who they believed inhabited the volcano. In 1894 a team from the United States Coast and Geodetic Survey visited the island and gave Mount Cleveland its current name, after then-president Grover Cleveland.
Frosty Peak Volcano, also known as Mt. Frosty, Frosty Volcano, or Cold Bay Volcano, is a 6,299 ft (1,920 m) stratovolcano at the southwest end of the Alaska Peninsula in the U.S. state of Alaska.
Lava lakes are large volumes of molten lava, usually basaltic, contained in a volcanic vent, crater, or broad depression. The term is used to describe both lava lakes that are wholly or partly molten and those that are solidified.