List of volcanoes in the United States

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This article contains a list of volcanoes in the United States and its territories.

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Alaska

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Mount Adagdak645211551°59′16″N 176°35′30″W210,000 ± 5,000 years ago
Mount Akutan1303427554°8′4″N 165°59′10″W1996
Alagogshak1675549559°09′26″N 155°23′54″W43,000 ± 8,000 years ago
Amak Volcano488160155°25′26″N 163°8′57″W1796
Mount Amukta1066349752°30′0″N 171°15′8″W1997
Mount Aniakchak1341440056°53′0″N 158°10′0″W1931
Mount Augustine1252410859°21′48″N 153°26′0″W2005
Black Peak1032338556°33′11″N 158°47′12″W1900 BCE ± 150 years
Bogoslof Island15049253°56′0″N 168°2′0″W2017
Buldir Volcano656215252°21′0″N 175°54′38″WHolocene
Mount Bona500516,42161°23′6″N 141°45′3″W847
Mount Blackburn499616,39061°43′54″N 143°25′59″W3.4 million years ago
Buzzard Creek830272364°3′40″N 148°24′55″W1050 BC
Capital Mountain2356772862.43°N 144.10°W / 62.43; -144.10 (Capital)1.02 million years ago[1]
Mount Carlisle1620531552°53′38″N 170°3′15″W1987
Chagulak Island1142374752°34′36″N 171°8′0″WUnknown
Mount Chiginagak2221728757°8′6″N 156°59′24″W1998
Mount Cleveland1730567652°49′30″N 169°56′38″W2020[2]
Mount Dana1354444255°38′28″N 161°12′50″W1890 BC
Davidof Volcano328107651.9542°N 178.326°E / 51.9542; 178.326 (Davidof Volcano)Probably Holocene
Mount Denison2318760658°25′4″N 154°26′57″WProbably Holocene
Devils Desk1954640958.5°N 154.3°W / 58.5; -154.3 (Devils Desk)245,000 years ago
Double Glacier Volcano1239406560.68°N 152.62°W / 60.68; -152.62 (Double Glacier)Pleistocene
Mount Douglas2140702158°51′19″N 153°32′31″WProbably Holocene
Mount Dutton1506494155°10′5″N 162°16′18″WHolocene
Mount Edgecumbe970313257°3′0″N 135°45′0″W2220 BC ± 100 years
Mount Emmons1436471155°20′26″N 164°4′43″WMore than 10,000 years ago[3]
Espenberg66.35°N 164.33°W / 66.35; -164.33 (Espenberg)17,500 years BP
Mount Fisher1112364854°39′0″N 164°26′0″W1830
Fourpeaked2105690658°46′12″N 153°40′20″W2006
Frosty Peak Volcano1920629955.082°N 162.894°W / 55.082; -162.894 (Cold Bay Volcano)Late Pleistocene or later
Gareloi Volcano1573516151°47′25″N 178°47′38″W1989
Mount Gilbert818268454.2521°N 165.662°W / 54.2521; -165.662 (Mount Gilbert)Unknown, fumaroles until 1948[4]
Great Sitkin1740570952°4′34″N 176°7′48″W2026 (ongoing non-stop)
Mount Gordon2755903962°8′0″N 143°5′0″WHolocene
Mount Griggs2317760258°21′14″N 155°5′30″W1790 BC ± 40 years
Hayes Volcano3034995461°38′25″N 152°24′41″W1200 ± 300 years
Mount Herbert1280419952°44′32″N 170°6′38″WUnknown
Mount Iliamna305310,01660°1′55″N 153°5′25″W1876
Imuruk Lake610200165°36′0″N 163°55′0″W300
Ingakslugwat Hills19062361°26′0″N 164°28′0″WHolocene
Isanotski Peaks2446802554°45′54″N 163°43′21″WUnknown
Kagamil Island893293052°58′25″N 169°43′0″W1929
Mount Kaguyak901295658°36′30″N 154°1′40″W1650 BC
Mount Kanaga1307428851°55′22″N 177°10′4″W2012
Kasatochi Island314103052°10′39″N 175°30′30″W2008
Mount Katmai2047671658°16′47″N 154°57′48″W1912
Kejulik Volcano1517497758°01′33″N 155°39′17″WUnknown
Mount Kialagvik1575516757°12′10″N 156°44′43″WHolocene[5]
Kiska Volcano1220400352.1031°N 177.6035°E / 52.1031; 177.6035 (Mount Kiska)1990
Koniuji Island27389652°13′0″N 175°8′0″W1150 BC
Korovin Volcano1533502952°22′54″N 174°9′57″W2007
Mount Kukak2043670358°27′10″N 154°21′18″WHolocene[6]
Mount Kupreanof1895621756°0′40″N 159°47′50″W1987
Kookooligit Mountains673220863°36′0″N 170°26′0″WHolocene
Little Sitkin1174385251°57′0″N 178°32′35″W1830
Mount Mageik2165710358°11′41″N 155°15′10″W500 BC ± 50 years
Mount Makushin1800590553°53′27″N 165°55′22″W1996
Mount Martin1863611258°10′20″N 155°21′40″W1953
Mount Moffett1196392451°56′38″N 176°44′48″W1600 BC
Novarupta841275958°16′0″N 155°9′24″W1912
Nunivak Island511167660°1′0″N 166°20′0″W300,000 years ago
Mount Okmok1073352053°26′0″N 168°8′0″W2008
St. Michael volcanic field715234663°27′0″N 162°7′0″WMore recent than 500 BC
Mount Pavlof2519826455°25′0″N 161°53′15″W2022
Pavlof Sister2142702755°27′10″N 161°50′35″W1786
Pogromni2002656954.57°N 164.85°W / 54.57; -164.85 (Pogromni)Late Pleistocene[7]
Pyre Peak1054345852°18′55″N 172°35′30″W1993
Mount Recheschnoi1984650953°9′24″N 168°32′20″W3,000 years ago
Mount Redoubt310810,19760°29′7″N 152°44′31″W2009
Roundtop Mountain1871613854°48′0″N 163°35′20″W9,100-10,000 years ago[8]
Mount Sanford494916,23762°13′0″N 144°8′0″W320,000 years ago
Mount Segula1160380652°0′55″N 178°8′8″WA few hundred years ago
Semisopochnoi Island1221400651°56′0″N 179°35′0″W2023
Mount Sergief560183752°2′0″N 174°56′0″WPleistocene[9]
Mount Shishaldin2857937354°45′20″N 163°58′0″W2023
Snowy Mountain2162709358°20′8″N 154°40′55″W1710 ± 200 years
Mount Spurr337411,06961°17′58″N 152°15′4″W1992
St. Michael volcanic field715234663°27′0″N 162°7′0″WWithin 3,000 years
St. Paul Island20366657°11′0″N 170°18′0″W1280 BC ± 40 years
Mount Steller2272745458°26′0″N 154°24′0″WProbably Holocene
Stepovak Bay 31555510255°56′0″N 160°0′0″WProbably Pleiocene
Table Top-Wide Bay792259853°58′5″N 166°40′38″WHolocene[10]
Mount Takawangha1449475451°52′22″N 178°0′20″WLast few hundred years[11]
Tana (volcano)1170383952°49′48″N 169°16′12″WMid-late Holocene[12]
Mount Tanaga1806592551°53′6″N 178°8′45″W1914
Tlevak Strait-Suemez Island5016455°15′0″N 133°18′0″WHolocene/Post-glacial[13]
Trident Volcano1864611558°14′8″N 155°6′0″W1975
Ugashik-Peulik1474483657°45′3″N 156°22′5″W1814
Ukinrek maars9129957°49′54″N 156°30′35″W1977
Uliaga Island888291353°3′54″N 169°46′0″WHolocene
Mount Veniaminof2507822556°10′0″N 159°23′0″W2021
Mount Vsevidof2149705053°7′48″N 168°41′35″W1957
Mount Westdahl1654542654°31′6″N 164°39′0″W1992
Yantarni Volcano1345441357°1′17″N 157°11′6″W800 BC ± 500 years
Yunaska Island550180452°38′34″N 170°37′43″W1937
Prindle Volcano--63.72°N 141.62°W / 63.72; -141.62 (Prindle Volcano)Pleistocene
Mount Churchill476615,63261.25°N 141.7°W / 61.25; -141.7 (Mount Churchill)700 ± 200 years
Mount Drum366112,01062.1°N 144.5°W / 62.1; -144.5 (Mount Drum)About 250,000 years ago[14]
Mount Jarvis409113,42262°1′4″N 143°37′2″W1 million years ago
Mount Wrangell431714,16362.00°N 144.02°W / 62.00; -144.02 (Mount Wrangell)1999
Close

American Samoa

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Malumalu--14°36′29″S 169°47′06″WLast 8,000 years
Taʻū931305414.23°S 169.454°W / -14.23; -169.454 (Ta‘u-)30,000 years ago[15]
Ofu-Olosega639209614.175°S 169.618°W / -14.175; -169.618 (Ofu-Olosega)1866 unnamed submarine cone eruption
Tutuila653214214.295°S 170.70°W / -14.295; -170.70 (Tutuila)440 CE[16]
Vailuluʻu-592-184214.295°S 170.70°W / -14.295; -170.70 (Vailulu'u)2003 west of unnamed submarine caldera and nafauna
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Arizona

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Arlington Cone - - 33°20′55.6″N 112°44′54.2″W -
Black Bottom Crater--35°23′54.02″N 111°23′42.55″W-
Colton Crater2,2467,36835°32′42″N 111°38′13.2″W1075 AD Sunset Crater and Unnamed Fissure vents
Double Crater2,4267,95935°20′34.03″N 111°26′51.55″WPleistocene
Lenox Crater--35°21′35.999″N 111°31′47.62″W-
Maroon Crater--35°26′32.02″N 111°28′12.56″W-
Merriam Cone2,0776,81335°18′N 111°18′W150,000 years ago
Mount Baldy3,48011,42033°54′22″N 109°33′46″W8-9 million years ago
Mount Elden2,8349,29935°14′28″N 111°35′48″W250,000 years ago
Red Mountain2428796535°31′23″N 111°52′32″W740,000 years ago
Roden Crater--35°25′37.02″N 111°15′27.76″W400,000 years ago
San Francisco Peaks385112,63335°20′47″N 111°40′40″W92,000 years ago[17]
San Francisco volcanic field--35°21′51″N 111°30′11″W1075 AD ± 25 years
SP Crater2141702135°34′56″N 111°37′55″W5,500 years ago
Stewart Crater--35°21′39.6″N 111°24′14.4″W-
Strawberry Crater1,9896,52635°26′32.02″N 111°28′12.6″WLate Pleistocene
Sunset Crater (San Francisco volcanic field)2447802635°21′51″N 111°30′11″W1075 AD ± 25 years
Uinkaret volcanic field--36°13′7.93″N 113°4′38.74″W1100 AD ± 75 years Little Springs Pyroclastic Cone
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California

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Amboy Crater-

300

 -

984

 -

34°32′38″N 115°47′28″W

 23 million years ago 79,000 ± 5,000 years ago
Big Cave1259413140.955°N 121.365°W / 40.955; -121.365 (Big Cave)38,000 ± 7,000 years ago
Big Pine volcanic field37°00′N 118°15′W17,000 years ago
Black Butte1939636241.363°N 122.348°W / 41.363; -122.348 (Black Butte)9,500 years ago
Brushy Butte1174385241.178°N 121.443°W / 41.178; -121.443 (Brushy Butte)12,000 years ago
Burney Mountain2397786340.81°N 121.63°W / 40.81; -121.63 (Burney Mountain)280,000 ± 6,000 years ago[18]
Cima volcanic field1509692535.25°N 115.75°W / 35.25; -115.75 (Cima Volcanic Field)15,000 ± 5,000 years ago
Cinder Cone and the Fantastic Lava Beds2105690740.55°N 121.32°W / 40.55; -121.321666
Inyo Craters2629862537.692°N 119.02°W / 37.692; -119.02 (Inyo Craters)1380 CE ± 50 years
Mount Konocti (Clear Lake Volcanic Field)1312430538.97°N 122.77°W / 38.97; -122.77 (California Coast Range)11,000 years ago
Lassen Peak318910,46240°29′17″N 121°30′18″W1917
Lassen Volcanic Center--40°29′30″N 121°30′30″W1917
Long Valley Caldera339011,12237.6°N 118.8°W / 37.6; -118.8 (Long Valley Caldera)50,000 years ago
Malapai Hill1304427833.9°N 116.0°W / 33.9; -116.0 (Malapi Hill)15.93 ± 0.08 million years ago
Mammoth Mountain337111,05937.63°N 119.03°W / 37.63; -119.03 (Mammoth Mountain)1260 AD ± 40 years
Medicine Lake Volcano2412791341.36°N 121.33°W / 41.36; -121.33 (Medicine Lake Volcano)1060 AD
Mono Craters2,7969,17337.88°N 119.00°W / 37.88; -119.00 (Mono Craters)1350 AD ± 20 years
Pinnacles--36.487°N 121.167°W / 36.487; -121.167 (Pinnacles)23 million years ago
Pipkin34°41′12″N 116°37′12″W770,000 ± 40,000 years ago
Pisgah Crater7742,53934°44′47″N 116°22′30″W18,000 ± 5,000 years ago
Red Cones2,7489,01537.58°N 119.05°W / 37.58; -119.05 (Red Cones)8,500 years ago
Round Mountain (Clear Lake Volcanic Field)6962,29439.048955°N 122.636205°W / 39.048955; -122.63620510,000 years ago
Round Top5381,76437.85°N 122.48°W / 37.85; -122.48 (Round Top)10 Million Years Ago[19]
Mount Saint Helena1,3234,34238.67°N 122.63°W / 38.67; -122.63 (Clear Lake Volcanic Field)3.4 million years ago
Mount Shasta4,31714,16241.409°N 122.193°W / 41.409; -122.193 (Mount Shasta)1250
Sutter Buttes6502,13039°12′20.61″N 121°49′12.9″W1.5 million years ago
Tumble Buttes2,1917,18840.68°N 121.55°W / 40.68; -121.55 (Tumble Buttes)10,000 – 15,000 years ago[20]
Twin Buttes1631535140.78°N 121.60°W / 40.78; -121.60 (Twin Buttes)10,000 to 15,000 years ago
Ubehebe Craters752246737.02°N 117.45°W / 37.02; -117.45 (Ubehebe Craters)150 BC
Close

Colorado

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Dotsero2,2307,31639°39′40″N 107°02′06″W2200 BC ± 300 years
La Garita Caldera4,27414,02237°43′36″N 106°46′28″W26.3 Ma
Never Summer Mountains3,94612,94540°28′10″N 105°53′42″W24 to 29 million years ago
Summer Coon--37°46′51″N 106°22′09″W24 to 34 million years ago
Close

Hawaii

Further information: Evolution of Hawaiian volcanoes and List of volcanoes in the Hawaiian – Emperor seamount chain
More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Diamond Head23276121°15′35″N 157°48′42″W400,000 to 500,000 years ago
Haleakalā or East Maui Volcano305510,02320.71°N 156.25°W / 20.71; -156.25 (Haleakala)1750
Hanauma Bay (Koko Head)19664221°16′17″N 157°41′40″W10,000 - 32,000 years ago
Hualālai2521827019.69°N 155.87°W / 19.69; -155.87 (Hualalai)1801
Kaʻau Crater4621,51621°19′43″N 157°46′21″W35000 or 76000 years ago.
Kaʻena Point--21°34′31″N 158°16′57″WPleistocene Epoch
Kahoʻolawe450147520.6°N 156.6°W / 20.6; -156.6 (Kahoolawe)1 million years ago
Kauhakō Crater15049021°11′16″N 156°57′58″W230,000-300,000 years ago
Kawaikini1,5985,24322°03′24″N 159°29′48″W4 million years ago
Kīlauea1247409119.452°N 155.292°W / 19.452; -155.292 (Kilauea)January 2026 (ongoing)
Kohala1670548020°5′10″N 155°43′2″W120,000 years ago
Koko Guyot--35°15′N 171°35′E50 million years ago
Koko Crater368120721.261585°N 157.702949°W / 21.261585; -157.702949 (Koko Head)10,000 years ago
Koʻolau Range941314921.37°N 157.80°W / 21.37; -157.80 (Koolau)40,000 years ago
Lānaʻi1,0263,36620°50′N 156°56′W1.2 million years ago
Kamaʻehuakanaloa Seamount (Loihi)-975-319918.92°N 155.25°W / 18.92; -155.25 (Loihi Seamount)1996
Māhukona--20.1°N 156.1°W / 20.1; -156.1 (Mahukona)About 470,000 years ago
Mauna Kea420813,79619.8°N 155.5°W / 19.8; -155.5 (Mauna Kea)2460 BC ± 100 years
Mauna Loa416913,67919.5°N 155.6°W / 19.5; -155.6 (Mauna Loa)2022
Mount Waiʻaleʻale1,5445,06622°04′26″N 159°29′55″W-
Puʻu Hawaiʻiloa10333721°26′53″N 157°45′24″W450,000 - 420,000
Punchbowl Crater--21°18′45″N 157°50′46″W400,000 to 500,000 years ago
Ulupaʻu Crater20165921°27′16″N 157°43′54″W600,000 - 400,000 years ago
Waiʻanae Range13424,02521°30′25″N 158°08′34″W2.6 million years ago
West Maui Volcano1,7645,78820°53′37″N 156°35′22″W320,000 years ago
Close

Idaho

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Big Southern Butte2298754043.24°N 113.01°W / 43.24; -113.01 (Big Southern Butte)300,000 years ago
Blue Creek----
Craters of the Moon2005657843.42°N 113.50°W / 43.42; -113.50 (Craters of the Moon)130 BC ± 50 years
Yellowstone Plateau volcanic field2805920344°28′16″N 110°30′07″W70,000 years ago (magmatic) / 1350 BC ± 200 years (hydrothermal)[21]
Juniper Buttes1905625044.20°N 111.53°W / 44.20; -111.53 (Juniper Buttes)-
Menan Buttes1713561943.60°N 111.5°W / 43.60; -111.5 (Menan Buttes)10,000 years ago
Shoshone Volcano----
Split Butte--44.25°N 111.73°W / 44.25; -111.73-
The Great Rift--43°27′42″N 113°33′46″W-
Close

Illinois

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Hicks Dome[22]20366637.53°N 88.37°W / 37.53; -88.37400-345 million years ago
Close

Louisiana

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Door Point Volcano-2200-7200-74-90 million years ago
Close

Michigan

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Porcupine Mountains Central-Volcano5951,95846°46′52″N 89°40′51″W1.093 billion years ago[23]
Close

Mississippi

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Jackson Volcano-880 (from surface)-290032°18′0″N 90°10′19″W65 million years ago
Midnight Volcano-1110 (from surface)-364133.04904°N 90.573494°W / 33.04904; -90.57349466 million years ago
Close

Missouri

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Taum Sauk Caldera540177237.5288°N 90.7862°W / 37.5288; -90.7862 (Taum Sauk Caldera)1.485 billion years ago
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Montana

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Elkhorn Mountains2869941446.3022957°N 112.012053°W / 46.3022957; -112.012053Late Cretaceous, 74 million years ago[24][25]
Yellowstone Plateau Volcanic Field 2805 9203 45.5°N 110.52°W / 45.5; -110.52 70,000 years ago (magmatic) / 1350 BC ± 200 years (hydrothermal)[21]
Close

Nevada

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Cottonwood Caldera---15.70 million years ago
Crater Flat (Southwest Nevada Volcanic Field)--36°47′N 116°34′W80,000 years ago
Indian Peak-Caliente Caldera Complex--38°00′00″N 114°00′00″W18 million years ago
Jessup area--39°56′N 118°52′WJurassic
Lunar Crater volcanic field--38°N 116°W38,100 ± 10,000 years ago
McDermitt Caldera2078681642°00′05″N 117°59′48″W16.39 ± 0.02 million years ago
Steamboat Springs1415464239.375°N 119.72°W / 39.375; -119.72 (Steamboat Springs)1.14 million years ago
Soda Lakes1251410439°53′N 119°27′WHolocene
Virgin Valley Caldera---16.38 million years ago
Yucca Mountain2044670736°56′N 116°29′W80,000 years ago
Close

New Hampshire

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Pawtuckaway Mountains--43°06′39″N 71°11′11″WCretaceous
Ossipee Mountains--43°44′37″N 71°16′26″WCretaceous
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New Jersey

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Rutan Hill3101,02041°14′43″N 74°40′35″WOrdovician
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New Mexico

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Albuquerque volcanic field1,8406,03035°8′29″N 106°46′19″W70,000-170,000 years ago
Capulin Volcano2,4948,18236°47′20″N 103°57′42″W58,000–52,000 years ago
Carrizozo Malpais1,7315,67933°47′N 105°56′W3,250 BC ± 500 years ago
Cerros del Rio6642,17835°42′N 106°12′W2.2 million years ago
Jemez Mountains3,525-35°53′N 106°32′W60,000-50,000 years ago
Jornada del Muerto Volcano1,5655,13633°32′N 106°52′W760,000 years ago
Kilbourne Hole1,5554,24031°58′N 106°58′W80,000 years ago
Mount Taylor2,44511,30035°14′19″N 107°36′30″W1,500,000 years ago
Shiprock2,1887,17736°41′15″N 108°50′10″W27 million years ago
Sierra Blanca3,65211,98133°22′27″N 105°48′31″W26 million years ago
Valles Caldera3,43011,25335°52′N 106°34′W50,000 to 60,000 years ago
Zuni-Bandera volcanic field2,5508,36634°48′N 108°00′W1,170 BC ± 300 years
Close

North Carolina

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Hillsborough Caldera--36°4′24″N 78°58′52″W630 million years ago[26]
Morrow Mountain27690635°21′8.49″N 80°05′34.19″W550 million years ago[27][28]
Pond Mountain Volcanic Center1517.904498036°34′29.1″N 81°39′10.7″W760 million years ago[29]
Close

Northern Mariana Islands

Major volcanoes of the Mariana Islands
More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Agrigan965316518.8°N 145.7°E / 18.8; 145.7 (Agrigan)1917
Ahyi Seamount-137-44920.42°N 145.03°E / 20.42; 145.03 (Ahyi)2025 (continuing)
Alamagan744244117.60°N 145.83°E / 17.60; 145.83 (Dante Rodondi)1887
Anatahan788259216.35°N 145.67°E / 16.35; 145.67 (Veronica Rodondi)2008
Asuncion Island857281019.7°N 145.4°E / 19.7; 145.4 (Asuncion)1906
Daikoku Seamount-323-106021.32°N 144.19°E / 21.32; 144.19 (Daikoku)Holocene
Eifuku-1535-503621.485°N 144.043°E / 21.485; 144.043 (Eifuku)Holocene
East Diamante-127-41715.93°N 145.67°E / 15.93; 145.67 (East Diamante)Holocene
Esmeralda Bank-43-14115.00°N 145.25°E / 15.00; 145.25 (Ashley Rodondi)Holocene
Farallon de Pajaros3601,18020.5°N 144.9°E / 20.5; 144.9 (Farallon de Pajaros)1967
Forecast Seamount-1456-477713.4°N 143.92°E / 13.4; 143.92 (Forecast)Holocene
Fukujin Seamount-217-71221.93°N 143.47°E / 21.93; 143.47 (Fukujin)1974
Guguan28794217.32°N 145.83°E / 17.32; 145.83 (Guguan)1883
Kasuga Seamounts-598-196221.765°N 143.71°E / 21.765; 143.71 (Kasuga)1959
Maug Islands22774520.02°N 145.22°E / 20.02; 145.22 (Maug Islands)Pleistocene
Northwest Rota-1-517-169614.601°N 144.775°E / 14.601; 144.775 (Northwest Rota-1)2004
Pagan Island570187018.10°N 145.76°E / 18.10; 145.76 (Pagan Island)2021
Ruby Seamount-230-75515.62°N 145.57°E / 15.62; 145.57 (Ruby)2023
Sarigan538176516.708°N 145.78°E / 16.708; 145.78 (Sarigan)Unknown
Seamount X-1230-403513.25°N 144.02°E / 13.25; 144.02 (Seamount X)Holocene
South Sarigan Seamount-184-60416.58°N 145.78°E / 16.58; 145.78 (South Sarigan)2010
Supply Reef-8-2620.13°N 145.10°E / 20.13; 145.10 (Supply Reef)1989
Zealandia Bank0016.88°N 145.85°E / 16.88; 145.85 (Zealandia Bank)Holocene
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Oregon

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Mount Bachelor2,7639,06443°58′45.90″N 121°41′18.63″W5800 BC ± 750 years
Bald Mountain Caldera--43°25′N 121°25′W3.4 to 4.6 million years ago
Mount Bailey2,5518,36843°9′18.52″N 122°13′11.98″W11,000 to 100,000 years ago
Belknap Crater2,0956,87344°17′05.80″N 121°50′32.04″W480 AD
Black Butte1,9626,43644°23′59.0″N 121°38′07.7″WAbout 1,430,000 years ago
Blue Lake Crater1,2304,03544°24′40″N 121°46′26″W680 AD ± 200 years
Broken Top2,8009,18544°04′58″N 121°41′59″WAbout 100,000 years ago
Brown Mountain--42°22′N 122°16′W12,000 to 60,000 years ago
Cinnamon Butte1,9566,41743°14′28″N 122°06′29″W4855 BC to 9,000 BC
Columbia River Basalt Group---6.0 million years ago
Crater Lake (Mount Mazama)2,4878,15942°56′N 122°07′W2850 BC
Crooked River caldera--44°18′N 120°54′W29.5 million years ago
Diamond Craters1,4504,75043°06′N 118°42′W5610 BC ± 470 years
Diamond Peak2,6658,74443°31′14.5″N 122°08′58.5″W11,000 to 100,000 years ago
Fort Rock1,7165,62843°22′27″N 121°04′08″W13,500 to 18,000 years ago
Gray Butte--44°30′N 121°18′W29.5 million years ago
Mount Hood3,42611,23745°22′24.65″N 121°41′45.31″W1866 [30]
Jackies Butte1,4184,65242°36′22″N 117°35′20″WHolocene
Mount Jefferson3,19910,49244°42′N 121°48′W950 AD
Jordan Craters1,4004,60043°08′49″N 117°27′36″W1250 BC or later
Maiden Peak2,3807,81043°37′37″N 121°57′50″WPleistocene
McDermitt Caldera2,0786,816-16.39 ± 0.02 million years ago
Mahogany Mountain--43°14′06″N 117°15′21″W15.5 million years ago
Mount McLoughlin2,8949,49242°26′40.10″N 122°18′56.23″W20,000 to 30,000 years ago
Middle Sister3,06310,05044°09′N 121°47′W14,000 years ago
Newberry Caldera2,4347,98643°42′N 121°30′W690 AD ± 100 years
North Sister3,07510,09044°10′N 121°46′W46,000 years ago
Olallie Butte2,2007,21944°49′18.1″N 121°45′50.2″W11,000 years ago or earlier
Pelican Butte--42°31′N 122°04′W60,000 years ago or earlier
Rocky Butte--45°32′48″N 122°33′57″W30,000 to 90,000 years ago
Round Butte--44°30′N 121°00′W-
Saddle Butte1,700-43°00′N 117°48′W430,000 ± 90,000 years ago
South Sister3,15810,36044°06′N 121°46′W50 BC
Strawberry Volcanics--44°12′N 118°48′W12.5 to 16.2 million years ago
Mount Sylvania29897845°26′17″N 122°43′21″W1 million years ago or earlier
Mount Tabor-63645°30′46″N 122°35′33″W300,000 years ago or earlier
Mount Thielsen2,8009,18443°09′10.21″N 122°03′59.45″W290,000 years ago
Three Fingered Jack2,3907,84044°28′42″N 121°50′29″W40,000 to 80,000 years ago
Tower Mountain (Oregon)---22.0 million years ago
Mount Washington2,3767,79044°19′55″N 121°50′13″W700 AD
Wildcat Mountain Caldera---36.0 million years ago
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Texas

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Pilot Knob16957630°09′43″N 97°42′22″W79 to 83 million years ago (late Cretaceous)
Inge Mountain12541029°10′52″N 99°45′58″WEocene or possibly Miocene
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Utah

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Bald Knoll Volcanic Field2,1357,00537°19′41″N 112°24′29″W300,000 years ago or later
Black Rock Desert Volcanic Field1,8005,90438°58′12″N 112°30′00″W1290 AD ± 150 years
Fumarole Butte1,6095,27939°36′54″N 112°48′11″W900,000 years ago
Indian Peak-Caliente Caldera Complex--38°00′00″N 114°00′00″W18 million years ago
Marysvale Volcanic Field3,69412,13738°30′00″N 112°30′00″W19 million years ago
Markagunt Plateau Volcanic Field2,8409,31837°37′01″N 112°49′30″W1050 AD
Santa Clara Volcanic Field1,4654,80637°15′25″N 113°37′30″W32,000 years ago
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Virginia

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Culpeper Basin--38°23′55″N 77°25′18″W201 million years ago (late Triassic)[31]
Mole Hill577 1,89338°26′26″N 78°57′12″W47 million years ago (early Eocene)
Trimble Knob952 3,123 38°24′17″N 79°35′16″W35 million years ago (late Eocene)
Mount Rogers Volcanic Center1,750 5,73036°39′35″N 81°32′40″W760 million years ago (Tonian)
Battle Mountain354 1,162 38°39′26″N 78°3′36″W704 million years ago (Cryogenian)
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Washington

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Battle Ground Lake22975045°48′19″N 122°39′29″W105,000 years ago
Black Buttes2,857 9,373 48°46′09″N 121°51′10″W500,000 to 300,000 years ago
Mount Adams3,74312,28146°12′09″N 121°29′27″W500 BC ± 1000 years
Mount Baker3,28510,77848°46′38″N 121°48′48″W1880
Glacier Peak3,21310,54148°06′45″N 121°06′50″W1700 ± 100 years
Goat Rocks2,4948,18446°30′N 121°27′W500,000 years ago
Indian Heaven1,5135,92545°56′N 121°49′W~6250 BC
Lone Butte1457 4,78046°03′16″N 121°50′21″WEither 80,000 or 140,000 years ago ± 10,000 years
Marble Mountain-Trout Creek Hill volcanic zone1,378 4,52145°54′N 122°00′W~7700 years ago
Mount Rainier4,39214,41146°51′11″N 121°45′35″W1894
Mount St. Helens2,5508,36446°11′28″N 122°11′39″W2008
Mount Si1,2704,16747°30′27″N 121°44′24″WCretaceous to Jurassic
Pinnacle Peak5491,80147°10′25″N 121°58′24″W
Silver Star Mountain1,3304,36445°44′51.8″N 122°14′20.5″WPluton formed 20 million years ago
Simcoe Mountains19546,41046°06′N 120°54′W631,000 ± 27,000 years ago
Trout Creek Hill8902,92045°50′11″N 121°59′41″W340,000 years ago
Tumtum Mountain6112,00445°56′03″N 122°20′13″W70,000 years ago
West Crater1,3294,36045°53′N 122°05′W~6000 BC
White Chuck Cinder Cone1,8306,00248°03′N 121°10′WBetween 17,000 and 2,000 years ago
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West Virginia

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Ugly Mountain7922,59838°26′11″N 79°19′25″W42.8 ±0.5 Ma[32][33]
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Wyoming

More information Name, Elevation ...
NameElevationLocationLast eruption
metersfeetCoordinates
Yellowstone Plateau volcanic field2,8059,20344°28′16″N 110°30′07″W70,000 years ago (magmatic) / 1350 BC ± 200 years (hydrothermal)[21]
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