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List of volcanoes in the United States

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This article contains a list of volcanoes, which are active, dormant, or extinct in the United States and its territories.

Alaska

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Mount Adagdak645211551°59′16″N 176°35′30″W / 51.98778°N 176.59167°W / 51.98778; -176.59167 (Mount Adagdak)210,000 ± 5,000 years ago
Mount Akutan1303427554°8′4″N 165°59′10″W / 54.13444°N 165.98611°W / 54.13444; -165.98611 (Mount Akutan)1996
Alagogshak1675549559°09′26″N 155°23′54″W / 59.15722°N 155.39833°W / 59.15722; -155.39833 (Alagogshak)43,000 ± 8,000 years ago
Amak Volcano488160155°25′26″N 163°8′57″W / 55.42389°N 163.14917°W / 55.42389; -163.14917 (Mount Amak)1796
Mount Amukta1066349752°30′0″N 171°15′8″W / 52.50000°N 171.25222°W / 52.50000; -171.25222 (Mount Amukta)1997
Mount Aniakchak1341440056°53′0″N 158°10′0″W / 56.88333°N 158.16667°W / 56.88333; -158.16667 (Mount Aniakchak)1931
Mount Augustine1252410859°21′48″N 153°26′0″W / 59.36333°N 153.43333°W / 59.36333; -153.43333 (Mount Augustine)2005
Black Peak1032338556°33′11″N 158°47′12″W / 56.55306°N 158.78667°W / 56.55306; -158.78667 (Black Peak)1900 BCE ± 150 years
Bogoslof Island15049253°56′0″N 168°2′0″W / 53.93333°N 168.03333°W / 53.93333; -168.03333 (Bogoslof Island)2017
Buldir Volcano656215252°21′0″N 175°54′38″W / 52.35000°N 175.91056°W / 52.35000; -175.91056 (Mount Buldir)Holocene
Mount Bona500516,42161°23′6″N 141°45′3″W / 61.38500°N 141.75083°W / 61.38500; -141.75083 (Mount Bona)847
Mount Blackburn499616,39061°43′54″N 143°25′59″W / 61.73167°N 143.43306°W / 61.73167; -143.433063.4 million years ago
Buzzard Creek830272364°3′40″N 148°24′55″W / 64.06111°N 148.41528°W / 64.06111; -148.41528 (Buzzard Creek)1050 BC
Capital Mountain2356772862°26′N 144°06′W / 62.43°N 144.10°W / 62.43; -144.10 (Capital)1.02 million years ago[1]
Mount Carlisle1620531552°53′38″N 170°3′15″W / 52.89389°N 170.05417°W / 52.89389; -170.05417 (Mount Carlisle)1987
Chagulak Island1142374752°34′36″N 171°8′0″W / 52.57667°N 171.13333°W / 52.57667; -171.13333 (Mount Chagulak)Unknown
Mount Chiginagak2221728757°8′6″N 156°59′24″W / 57.13500°N 156.99000°W / 57.13500; -156.99000 (Mount Chiginagak)1998
Mount Cleveland1730567652°49′30″N 169°56′38″W / 52.82500°N 169.94389°W / 52.82500; -169.94389 (Mount Cleveland)2020[2]
Mount Dana1354444255°38′28″N 161°12′50″W / 55.64111°N 161.21389°W / 55.64111; -161.21389 (Mount Dana)1890 BC
Davidof Volcano328107651°57′15″N 178°19′34″E / 51.9542°N 178.326°E / 51.9542; 178.326 (Davidof Volcano)Probably Holocene
Mount Denison2318760658°25′4″N 154°26′57″W / 58.41778°N 154.44917°W / 58.41778; -154.44917 (Mount Denison)Probably Holocene
Devils Desk1954640958°30′N 154°18′W / 58.5°N 154.3°W / 58.5; -154.3 (Devils Desk)245,000 years ago
Double Glacier Volcano1239406560°41′N 152°37′W / 60.68°N 152.62°W / 60.68; -152.62 (Double Glacier)Pleistocene
Mount Douglas2140702158°51′19″N 153°32′31″W / 58.85528°N 153.54194°W / 58.85528; -153.54194 (Mount Douglas)Probably Holocene
Mount Dutton1506494155°10′5″N 162°16′18″W / 55.16806°N 162.27167°W / 55.16806; -162.27167 (Mount Dutton)Holocene
Mount Edgecumbe970313257°3′0″N 135°45′0″W / 57.05000°N 135.75000°W / 57.05000; -135.75000 (Mount Edgecumbe)2220 BC ± 100 years
Mount Emmons1436471155°20′26″N 164°4′43″W / 55.34056°N 164.07861°W / 55.34056; -164.07861 (Mount Emmons)More than 10,000 years ago[3]
Espenberg66°21′N 164°20′W / 66.35°N 164.33°W / 66.35; -164.33 (Espenberg)17,500 years BP
Mount Fisher1112364854°39′0″N 164°26′0″W / 54.65000°N 164.43333°W / 54.65000; -164.43333 (Mount Fisher)1830
Fourpeaked2105690658°46′12″N 153°40′20″W / 58.77000°N 153.67222°W / 58.77000; -153.67222 (Fourpeaked)2006
Frosty Peak Volcano1920629955°04′55″N 162°53′38″W / 55.082°N 162.894°W / 55.082; -162.894 (Cold Bay Volcano)Late Pleistocene or later
Gareloi Volcano1573516151°47′25″N 178°47′38″W / 51.79028°N 178.79389°W / 51.79028; -178.79389 (Mount Gareloi)1989
Mount Gilbert818268454°15′08″N 165°39′43″W / 54.2521°N 165.662°W / 54.2521; -165.662 (Mount Gilbert)Unknown, fumaroles until 1948[4]
Great Sitkin1740570952°4′34″N 176°7′48″W / 52.07611°N 176.13000°W / 52.07611; -176.13000 (Great Sitkin)2026 (ongoing non-stop)
Mount Gordon2755903962°8′0″N 143°5′0″W / 62.13333°N 143.08333°W / 62.13333; -143.08333 (Mount Gordon)Holocene
Mount Griggs2317760258°21′14″N 155°5′30″W / 58.35389°N 155.09167°W / 58.35389; -155.09167 (Mount Griggs)1790 BC ± 40 years
Hayes Volcano3034995461°38′25″N 152°24′41″W / 61.64028°N 152.41139°W / 61.64028; -152.41139 (Hayes Volcano)1200 ± 300 years
Mount Herbert1280419952°44′32″N 170°6′38″W / 52.74222°N 170.11056°W / 52.74222; -170.11056 (Mount Herbert)Unknown
Mount Iliamna305310,01660°1′55″N 153°5′25″W / 60.03194°N 153.09028°W / 60.03194; -153.09028 (Mount Iliamna)1876
Imuruk Lake610200165°36′0″N 163°55′0″W / 65.60000°N 163.91667°W / 65.60000; -163.91667 (Imuruk Lake)300
Ingakslugwat Hills19062361°26′0″N 164°28′0″W / 61.43333°N 164.46667°W / 61.43333; -164.46667 (Ingakslugwat Hills)Holocene
Isanotski Peaks2446802554°45′54″N 163°43′21″W / 54.76500°N 163.72250°W / 54.76500; -163.72250 (Mount Isanotski)Unknown
Kagamil Island893293052°58′25″N 169°43′0″W / 52.97361°N 169.71667°W / 52.97361; -169.71667 (Mount Kagamil)1929
Mount Kaguyak901295658°36′30″N 154°1′40″W / 58.60833°N 154.02778°W / 58.60833; -154.02778 (Mount Kaguyak)1650 BC
Mount Kanaga1307428851°55′22″N 177°10′4″W / 51.92278°N 177.16778°W / 51.92278; -177.16778 (Mount Kanaga)2012
Kasatochi Island314103052°10′39″N 175°30′30″W / 52.17750°N 175.50833°W / 52.17750; -175.50833 (Kasatochi Island)2008
Mount Katmai2047671658°16′47″N 154°57′48″W / 58.27972°N 154.96333°W / 58.27972; -154.96333 (Mount Katmai)1912
Kejulik Volcano1517497758°01′33″N 155°39′17″W / 58.02583°N 155.65472°W / 58.02583; -155.65472 (Kejulik Volcano)Unknown
Mount Kialagvik1575516757°12′10″N 156°44′43″W / 57.20278°N 156.74528°W / 57.20278; -156.74528 (Mount Kialagvik)Holocene[5]
Kiska Volcano1220400352°06′11″N 177°36′13″E / 52.1031°N 177.6035°E / 52.1031; 177.6035 (Mount Kiska)1990
Koniuji Island27389652°13′0″N 175°8′0″W / 52.21667°N 175.13333°W / 52.21667; -175.13333 (Mount Koniuji)1150 BC
Korovin Volcano1533502952°22′54″N 174°9′57″W / 52.38167°N 174.16583°W / 52.38167; -174.16583 (Korovin Volcano)2007
Mount Kukak2043670358°27′10″N 154°21′18″W / 58.45278°N 154.35500°W / 58.45278; -154.35500 (Mount Kukak)Holocene[6]
Mount Kupreanof1895621756°0′40″N 159°47′50″W / 56.01111°N 159.79722°W / 56.01111; -159.79722 (Mount Kupreanof)1987
Kookooligit Mountains673220863°36′0″N 170°26′0″W / 63.60000°N 170.43333°W / 63.60000; -170.43333 (Kookooligit Mountains)Holocene
Little Sitkin1174385251°57′0″N 178°32′35″W / 51.95000°N 178.54306°W / 51.95000; -178.54306 (Little Sitkin)1830
Mount Mageik2165710358°11′41″N 155°15′10″W / 58.19472°N 155.25278°W / 58.19472; -155.25278 (Mount Mageik)500 BC ± 50 years
Mount Makushin1800590553°53′27″N 165°55′22″W / 53.89083°N 165.92278°W / 53.89083; -165.92278 (Mount Makushin)1996
Mount Martin1863611258°10′20″N 155°21′40″W / 58.17222°N 155.36111°W / 58.17222; -155.36111 (Mount Martin)1953
Mount Moffett1196392451°56′38″N 176°44′48″W / 51.94389°N 176.74667°W / 51.94389; -176.74667 (Monte Moffett)1600 BC
Novarupta841275958°16′0″N 155°9′24″W / 58.26667°N 155.15667°W / 58.26667; -155.15667 (Novarupta)1912
Nunivak Island511167660°1′0″N 166°20′0″W / 60.01667°N 166.33333°W / 60.01667; -166.33333 (Nunivak Island)300,000 years ago
Mount Okmok1073352053°26′0″N 168°8′0″W / 53.43333°N 168.13333°W / 53.43333; -168.13333 (Mount Okmok)2008
St. Michael volcanic field715234663°27′0″N 162°7′0″W / 63.45000°N 162.11667°W / 63.45000; -162.11667 (Saint Michael (volcano))More recent than 500 BC
Mount Pavlof2519826455°25′0″N 161°53′15″W / 55.41667°N 161.88750°W / 55.41667; -161.88750 (Mount Pavlof)2022
Pavlof Sister2142702755°27′10″N 161°50′35″W / 55.45278°N 161.84306°W / 55.45278; -161.84306 (Pavlof Sister)1786
Pogromni2002656954°34′N 164°51′W / 54.57°N 164.85°W / 54.57; -164.85 (Pogromni)Late Pleistocene[7]
Pyre Peak1054345852°18′55″N 172°35′30″W / 52.31528°N 172.59167°W / 52.31528; -172.59167 (Mount Seguam)1993
Mount Recheschnoi1984650953°9′24″N 168°32′20″W / 53.15667°N 168.53889°W / 53.15667; -168.53889 (Mount Recheschnoi)3,000 years ago
Mount Redoubt310810,19760°29′7″N 152°44′31″W / 60.48528°N 152.74194°W / 60.48528; -152.74194 (Mount Redoubt)2009
Roundtop Mountain1871613854°48′0″N 163°35′20″W / 54.80000°N 163.58889°W / 54.80000; -163.58889 (Mount Roundtop)9,100-10,000 years ago[8]
Mount Sanford494916,23762°13′0″N 144°8′0″W / 62.21667°N 144.13333°W / 62.21667; -144.13333 (Mount Sanford)320,000 years ago
Mount Segula1160380652°0′55″N 178°8′8″W / 52.01528°N 178.13556°W / 52.01528; -178.13556 (Mount Segula)A few hundred years ago
Semisopochnoi Island1221400651°56′0″N 179°35′0″W / 51.93333°N 179.58333°W / 51.93333; -179.58333 (Mount Semisopochnoi)2023
Mount Sergief560183752°2′0″N 174°56′0″W / 52.03333°N 174.93333°W / 52.03333; -174.93333 (Mount Sergief)Pleistocene[9]
Mount Shishaldin2857937354°45′20″N 163°58′0″W / 54.75556°N 163.96667°W / 54.75556; -163.96667 (Mount Shishaldin)2023
Snowy Mountain2162709358°20′8″N 154°40′55″W / 58.33556°N 154.68194°W / 58.33556; -154.68194 (Snowy Mountain)1710 ± 200 years
Mount Spurr337411,06961°17′58″N 152°15′4″W / 61.29944°N 152.25111°W / 61.29944; -152.25111 (Mount Spurr)1992
St. Michael volcanic field715234663°27′0″N 162°7′0″W / 63.45000°N 162.11667°W / 63.45000; -162.11667 (St. Michael)Within 3,000 years
St. Paul Island20366657°11′0″N 170°18′0″W / 57.18333°N 170.30000°W / 57.18333; -170.30000 (St. Paul Island)1280 BC ± 40 years
Mount Steller2272745458°26′0″N 154°24′0″W / 58.43333°N 154.40000°W / 58.43333; -154.40000 (Mount Steller)Probably Holocene
Stepovak Bay 31555510255°56′0″N 160°0′0″W / 55.93333°N 160.00000°W / 55.93333; -160.00000 (Mount Stepovak)Probably Pleiocene
Table Top-Wide Bay792259853°58′5″N 166°40′38″W / 53.96806°N 166.67722°W / 53.96806; -166.67722 (Table Top-Wide Bay)Holocene[10]
Mount Takawangha1449475451°52′22″N 178°0′20″W / 51.87278°N 178.00556°W / 51.87278; -178.00556 (Mount Takawangha)Last few hundred years[11]
Tana (volcano)1170383952°49′48″N 169°16′12″W / 52.83000°N 169.27000°W / 52.83000; -169.27000 (Tana (volcano))Mid-late Holocene[12]
Mount Tanaga1806592551°53′6″N 178°8′45″W / 51.88500°N 178.14583°W / 51.88500; -178.14583 (Mount Tanaga)1914
Tlevak Strait-Suemez Island5016455°15′0″N 133°18′0″W / 55.25000°N 133.30000°W / 55.25000; -133.30000 (Tlevak Strait-Suemez Island)Holocene/Post-glacial[13]
Trident Volcano1864611558°14′8″N 155°6′0″W / 58.23556°N 155.10000°W / 58.23556; -155.10000 (Trident Volcano)1975
Ugashik-Peulik1474483657°45′3″N 156°22′5″W / 57.75083°N 156.36806°W / 57.75083; -156.36806 (Ugashik-Peulik)1814
Ukinrek maars9129957°49′54″N 156°30′35″W / 57.83167°N 156.50972°W / 57.83167; -156.50972 (Ukinrek maars)1977
Uliaga Island888291353°3′54″N 169°46′0″W / 53.06500°N 169.76667°W / 53.06500; -169.76667 (Mount Uliaga)Holocene
Mount Veniaminof2507822556°10′0″N 159°23′0″W / 56.16667°N 159.38333°W / 56.16667; -159.38333 (Mount Veniaminof)2021
Mount Vsevidof2149705053°7′48″N 168°41′35″W / 53.13000°N 168.69306°W / 53.13000; -168.69306 (Mount Vsevidof)1957
Mount Westdahl1654542654°31′6″N 164°39′0″W / 54.51833°N 164.65000°W / 54.51833; -164.65000 (Mount Westdahl)1992
Yantarni Volcano1345441357°1′17″N 157°11′6″W / 57.02139°N 157.18500°W / 57.02139; -157.18500 (Yantarni Volcano)800 BC ± 500 years
Yunaska Island550180452°38′34″N 170°37′43″W / 52.64278°N 170.62861°W / 52.64278; -170.62861 (Mount Yunaska)1937
Prindle Volcano--63°43′N 141°37′W / 63.72°N 141.62°W / 63.72; -141.62 (Prindle Volcano)Pleistocene
Mount Churchill476615,63261°15′N 141°42′W / 61.25°N 141.7°W / 61.25; -141.7 (Mount Churchill)700 ± 200 years
Mount Drum366112,01062°06′N 144°30′W / 62.1°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″W / 62.01778°N 143.61722°W / 62.01778; -143.61722 (Mount Jarvis)1 million years ago
Mount Wrangell431714,16362°00′N 144°01′W / 62.00°N 144.02°W / 62.00; -144.02 (Mount Wrangell)1999

American Samoa

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Malumalu--14°36′29″S 169°47′06″W / 14.607943°S 169.784919°W / -14.607943; -169.784919 (Malumalu)Last 8,000 years
Taʻū931305414°13′48″S 169°27′14″W / 14.23°S 169.454°W / -14.23; -169.454 (Ta‘u-)30,000 years ago[15]
Ofu-Olosega639209614°10′30″S 169°37′05″W / 14.175°S 169.618°W / -14.175; -169.618 (Ofu-Olosega)1866 unnamed submarine cone eruption
Tutuila653214214°17′42″S 170°42′00″W / 14.295°S 170.70°W / -14.295; -170.70 (Tutuila)440 CE[16]
Vailuluʻu-592-184214°17′42″S 170°42′00″W / 14.295°S 170.70°W / -14.295; -170.70 (Vailulu'u)2003 west of unnamed submarine caldera and nafauna

Arizona

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Arlington Cone - - 33°20′55.6″N 112°44′54.2″W / 33.348778°N 112.748389°W / 33.348778; -112.748389 -
Black Bottom Crater--35°23′54.02″N 111°23′42.55″W / 35.3983389°N 111.3951528°W / 35.3983389; -111.3951528-
Colton Crater2,2467,36835°32′42″N 111°38′13.2″W / 35.54500°N 111.637000°W / 35.54500; -111.637000 (Colton Crater)1075 AD Sunset Crater and Unnamed Fissure vents
Double Crater2,4267,95935°20′34.03″N 111°26′51.55″W / 35.3427861°N 111.4476528°W / 35.3427861; -111.4476528 (Double Crater)Pleistocene
Lenox Crater--35°21′35.999″N 111°31′47.62″W / 35.35999972°N 111.5298944°W / 35.35999972; -111.5298944 (Lenox Crater)-
Maroon Crater--35°26′32.02″N 111°28′12.56″W / 35.4422278°N 111.4701556°W / 35.4422278; -111.4701556 (Maroon Crater)-
Merriam Cone2,0776,81335°18′N 111°18′W / 35.300°N 111.300°W / 35.300; -111.300 (Merriam Cone)150,000 years ago
Mount Baldy3,48011,42033°54′22″N 109°33′46″W / 33.90611°N 109.56278°W / 33.90611; -109.562788-9 million years ago
Mount Elden2,8349,29935°14′28″N 111°35′48″W / 35.24111°N 111.59667°W / 35.24111; -111.59667 (Mount Elden)250,000 years ago
Red Mountain2428796535°31′23″N 111°52′32″W / 35.52306°N 111.87556°W / 35.52306; -111.87556740,000 years ago
Roden Crater--35°25′37.02″N 111°15′27.76″W / 35.4269500°N 111.2577111°W / 35.4269500; -111.2577111400,000 years ago
San Francisco Peaks385112,63335°20′47″N 111°40′40″W / 35.34639°N 111.67778°W / 35.34639; -111.67778 (San Francisco Mountain)92,000 years ago[17]
San Francisco volcanic field--35°21′51″N 111°30′11″W / 35.36417°N 111.50306°W / 35.36417; -111.50306 (San Francisco volcanic field)1075 AD ± 25 years
SP Crater2141702135°34′56″N 111°37′55″W / 35.58222°N 111.63194°W / 35.58222; -111.63194 (SP Crater)5,500 years ago
Stewart Crater--35°21′39.6″N 111°24′14.4″W / 35.361000°N 111.404000°W / 35.361000; -111.404000 (Stewart Crater)-
Strawberry Crater1,9896,52635°26′32.02″N 111°28′12.6″W / 35.4422278°N 111.470167°W / 35.4422278; -111.470167 (Double Strawberry Crater)Late Pleistocene
Sunset Crater (San Francisco volcanic field)2447802635°21′51″N 111°30′11″W / 35.36417°N 111.50306°W / 35.36417; -111.50306 (Sunset Crater)1075 AD ± 25 years
Uinkaret volcanic field--36°13′7.93″N 113°4′38.74″W / 36.2188694°N 113.0774278°W / 36.2188694; -113.0774278 (Uinkaret volcanic field)1100 AD ± 75 years Little Springs Pyroclastic Cone

California

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Amboy Crater-

300

 -

984

 -

34°32′38″N 115°47′28″W / 34.54389°N 115.79111°W / 34.54389; -115.79111 (Amboy Crater)

 23 million years ago 79,000 ± 5,000 years ago
Big Cave1259413140°57′18″N 121°21′54″W / 40.955°N 121.365°W / 40.955; -121.365 (Big Cave)38,000 ± 7,000 years ago
Big Pine volcanic field37°00′N 118°15′W / 37.000°N 118.250°W / 37.000; -118.250 (Big Pine volcanic field)17,000 years ago
Black Butte1939636241°21′47″N 122°20′53″W / 41.363°N 122.348°W / 41.363; -122.348 (Black Butte)9,500 years ago
Brushy Butte1174385241°10′41″N 121°26′35″W / 41.178°N 121.443°W / 41.178; -121.443 (Brushy Butte)12,000 years ago
Burney Mountain2397786340°49′N 121°38′W / 40.81°N 121.63°W / 40.81; -121.63 (Burney Mountain)280,000 ± 6,000 years ago[18]
Cima volcanic field1509692535°15′N 115°45′W / 35.25°N 115.75°W / 35.25; -115.75 (Cima Volcanic Field)15,000 ± 5,000 years ago
Cinder Cone and the Fantastic Lava Beds2105690740°33′N 121°19′W / 40.55°N 121.32°W / 40.55; -121.321666
Inyo Craters2629862537°41′31″N 119°01′12″W / 37.692°N 119.02°W / 37.692; -119.02 (Inyo Craters)1380 CE ± 50 years
Mount Konocti (Clear Lake Volcanic Field)1312430538°58′N 122°46′W / 38.97°N 122.77°W / 38.97; -122.77 (California Coast Range)11,000 years ago
Lassen Peak318910,46240°29′17″N 121°30′18″W / 40.48806°N 121.50500°W / 40.48806; -121.50500 (Lassen Peak)1917
Lassen Volcanic Center--40°29′30″N 121°30′30″W / 40.49167°N 121.50833°W / 40.49167; -121.50833 (Lassen Volcanic Center)1917
Long Valley Caldera339011,12237°36′N 118°48′W / 37.6°N 118.8°W / 37.6; -118.8 (Long Valley Caldera)50,000 years ago
Malapai Hill1304427833°54′N 116°00′W / 33.9°N 116.0°W / 33.9; -116.0 (Malapi Hill)15.93 ± 0.08 million years ago
Mammoth Mountain337111,05937°38′N 119°02′W / 37.63°N 119.03°W / 37.63; -119.03 (Mammoth Mountain)1260 AD ± 40 years
Medicine Lake Volcano2412791341°22′N 121°20′W / 41.36°N 121.33°W / 41.36; -121.33 (Medicine Lake Volcano)1060 AD
Mono Craters2,7969,17337°53′N 119°00′W / 37.88°N 119.00°W / 37.88; -119.00 (Mono Craters)1350 AD ± 20 years
Pinnacles--36°29′13″N 121°10′01″W / 36.487°N 121.167°W / 36.487; -121.167 (Pinnacles)23 million years ago
Pipkin34°41′12″N 116°37′12″W / 34.68667°N 116.62000°W / 34.68667; -116.62000770,000 ± 40,000 years ago
Pisgah Crater7742,53934°44′47″N 116°22′30″W / 34.74639°N 116.37500°W / 34.74639; -116.37500 (Pisgah Crater)18,000 ± 5,000 years ago
Red Cones2,7489,01537°35′N 119°03′W / 37.58°N 119.05°W / 37.58; -119.05 (Red Cones)8,500 years ago
Round Mountain (Clear Lake Volcanic Field)6962,29439°02′56″N 122°38′10″W / 39.048955°N 122.636205°W / 39.048955; -122.63620510,000 years ago
Round Top5381,76437°51′N 122°29′W / 37.85°N 122.48°W / 37.85; -122.48 (Round Top)10 Million Years Ago[19]
Mount Saint Helena1,3234,34238°40′N 122°38′W / 38.67°N 122.63°W / 38.67; -122.63 (Clear Lake Volcanic Field)3.4 million years ago
Mount Shasta4,31714,16241°24′32″N 122°11′35″W / 41.409°N 122.193°W / 41.409; -122.193 (Mount Shasta)1250
Sutter Buttes6502,13039°12′20.61″N 121°49′12.9″W / 39.2057250°N 121.820250°W / 39.2057250; -121.820250 (Sutter Buttes)1.5 million years ago
Tumble Buttes2,1917,18840°41′N 121°33′W / 40.68°N 121.55°W / 40.68; -121.55 (Tumble Buttes)10,000 – 15,000 years ago[20]
Twin Buttes1631535140°47′N 121°36′W / 40.78°N 121.60°W / 40.78; -121.60 (Twin Buttes)10,000 to 15,000 years ago
Ubehebe Craters752246737°01′N 117°27′W / 37.02°N 117.45°W / 37.02; -117.45 (Ubehebe Craters)150 BC

Colorado

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Dotsero2,2307,31639°39′40″N 107°02′06″W / 39.66111°N 107.03500°W / 39.66111; -107.03500 (Dotsero)2200 BC ± 300 years
La Garita Caldera4,27414,02237°43′36″N 106°46′28″W / 37.72667°N 106.77444°W / 37.72667; -106.77444 (La Garita Caldera)26.3 Ma
Never Summer Mountains3,94612,94540°28′10″N 105°53′42″W / 40.46944°N 105.89500°W / 40.46944; -105.89500 (Never Summer Mountains)24 to 29 million years ago
Summer Coon--37°46′51″N 106°22′09″W / 37.78083°N 106.36917°W / 37.78083; -106.36917 (Summer Coon)24 to 34 million years ago

Hawaii

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Diamond Head23276121°15′35″N 157°48′42″W / 21.25972°N 157.81167°W / 21.25972; -157.81167 (Diamond Head)400,000 to 500,000 years ago
Haleakalā or East Maui Volcano305510,02320°43′N 156°15′W / 20.71°N 156.25°W / 20.71; -156.25 (Haleakala)1750
Hanauma Bay (Koko Head)19664221°16′17″N 157°41′40″W / 21.27139°N 157.69444°W / 21.27139; -157.69444 (Hanauma Bay)10,000 - 32,000 years ago
Hualālai2521827019°41′N 155°52′W / 19.69°N 155.87°W / 19.69; -155.87 (Hualalai)1801
Kaʻau Crater4621,51621°19′43″N 157°46′21″W / 21.32861°N 157.77250°W / 21.32861; -157.7725035000 or 76000 years ago.
Kaʻena Point--21°34′31″N 158°16′57″W / 21.57528°N 158.28250°W / 21.57528; -158.28250Pleistocene Epoch
Kahoʻolawe450147520°36′N 156°36′W / 20.6°N 156.6°W / 20.6; -156.6 (Kahoolawe)1 million years ago
Kauhakō Crater15049021°11′16″N 156°57′58″W / 21.18778°N 156.96611°W / 21.18778; -156.96611230,000-300,000 years ago
Kawaikini1,5985,24322°03′24″N 159°29′48″W / 22.05667°N 159.49667°W / 22.05667; -159.496674 million years ago
Kīlauea1247409119°27′07″N 155°17′31″W / 19.452°N 155.292°W / 19.452; -155.292 (Kilauea)January 2026 (ongoing)
Kohala1670548020°5′10″N 155°43′2″W / 20.08611°N 155.71722°W / 20.08611; -155.71722 (Kohala (mountain))120,000 years ago
Koko Guyot--35°15′N 171°35′E / 35.250°N 171.583°E / 35.250; 171.58350 million years ago
Koko Crater368120721°15′42″N 157°42′11″W / 21.261585°N 157.702949°W / 21.261585; -157.702949 (Koko Head)10,000 years ago
Koʻolau Range941314921°22′N 157°48′W / 21.37°N 157.80°W / 21.37; -157.80 (Koolau)40,000 years ago
Lānaʻi1,0263,36620°50′N 156°56′W / 20.833°N 156.933°W / 20.833; -156.9331.2 million years ago
Kamaʻehuakanaloa Seamount (Loihi)-975-319918°55′N 155°15′W / 18.92°N 155.25°W / 18.92; -155.25 (Loihi Seamount)1996
Māhukona--20°06′N 156°06′W / 20.1°N 156.1°W / 20.1; -156.1 (Mahukona)About 470,000 years ago
Mauna Kea420813,79619°48′N 155°30′W / 19.8°N 155.5°W / 19.8; -155.5 (Mauna Kea)2460 BC ± 100 years
Mauna Loa416913,67919°30′N 155°36′W / 19.5°N 155.6°W / 19.5; -155.6 (Mauna Loa)2022
Mount Waiʻaleʻale1,5445,06622°04′26″N 159°29′55″W / 22.07389°N 159.49861°W / 22.07389; -159.49861-
Puʻu Hawaiʻiloa10333721°26′53″N 157°45′24″W / 21.44806°N 157.75667°W / 21.44806; -157.75667450,000 - 420,000
Punchbowl Crater--21°18′45″N 157°50′46″W / 21.31250°N 157.84611°W / 21.31250; -157.84611400,000 to 500,000 years ago
Ulupaʻu Crater20165921°27′16″N 157°43′54″W / 21.45444°N 157.73167°W / 21.45444; -157.73167600,000 - 400,000 years ago
Waiʻanae Range13424,02521°30′25″N 158°08′34″W / 21.50694°N 158.14278°W / 21.50694; -158.142782.6 million years ago
West Maui Volcano1,7645,78820°53′37″N 156°35′22″W / 20.89361°N 156.58944°W / 20.89361; -156.58944320,000 years ago

Idaho

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Big Southern Butte2298754043°14′N 113°01′W / 43.24°N 113.01°W / 43.24; -113.01 (Big Southern Butte)300,000 years ago
Blue Creek----
Craters of the Moon2005657843°25′N 113°30′W / 43.42°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″W / 44.471031°N 110.501862°W / 44.471031; -110.501862 (Yellowstone Plateau)70,000 years ago (magmatic) / 1350 BC ± 200 years (hydrothermal)[21]
Juniper Buttes1905625044°12′N 111°32′W / 44.20°N 111.53°W / 44.20; -111.53 (Juniper Buttes)-
Menan Buttes1713561943°36′N 111°30′W / 43.60°N 111.5°W / 43.60; -111.5 (Menan Buttes)10,000 years ago
Shoshone Volcano----
Split Butte--44°15′N 111°44′W / 44.25°N 111.73°W / 44.25; -111.73-
The Great Rift--43°27′42″N 113°33′46″W / 43.46167°N 113.56278°W / 43.46167; -113.56278-

Illinois

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Hicks Dome[22]20366637°32′N 88°22′W / 37.53°N 88.37°W / 37.53; -88.37400-345 million years ago

Louisiana

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Door Point Volcano-2200-7200-74-90 million years ago

Michigan

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Porcupine Mountains Central-Volcano5951,95846°46′52″N 89°40′51″W / 46.78111°N 89.68083°W / 46.78111; -89.680831.093 billion years ago[23]

Mississippi

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Jackson Volcano-880 (from surface)-290032°18′0″N 90°10′19″W / 32.30000°N 90.17194°W / 32.30000; -90.17194 (Jackson Volcano)65 million years ago
Midnight Volcano-1110 (from surface)-364133°02′57″N 90°34′25″W / 33.04904°N 90.573494°W / 33.04904; -90.57349466 million years ago

Missouri

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Taum Sauk Caldera540177237°31′44″N 90°47′10″W / 37.5288°N 90.7862°W / 37.5288; -90.7862 (Taum Sauk Caldera)1.485 billion years ago

Montana

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Elkhorn Mountains2869941446°18′08″N 112°00′43″W / 46.3022957°N 112.012053°W / 46.3022957; -112.012053Late Cretaceous, 74 million years ago[24][25]
Yellowstone Plateau Volcanic Field 2805 9203 45°30′N 110°31′W / 45.5°N 110.52°W / 45.5; -110.52 70,000 years ago (magmatic) / 1350 BC ± 200 years (hydrothermal)[21]

Nevada

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Cottonwood Caldera---15.70 million years ago
Crater Flat (Southwest Nevada Volcanic Field)--36°47′N 116°34′W / 36.783°N 116.567°W / 36.783; -116.567 (Crater Flat)80,000 years ago
Indian Peak-Caliente Caldera Complex--38°00′00″N 114°00′00″W / 38.000°N 114.000°W / 38.000; -114.000 (Indian Peak-Caliente Caldera Complex)18 million years ago
Jessup area--39°56′N 118°52′W / 39.933°N 118.867°W / 39.933; -118.867Jurassic
Lunar Crater volcanic field--38°N 116°W / 38°N 116°W / 38; -116 (Lunar Crater volcanic field)38,100 ± 10,000 years ago
McDermitt Caldera2078681642°00′05″N 117°59′48″W / 42.00139°N 117.99667°W / 42.00139; -117.99667 (McDermitt Caldera)16.39 ± 0.02 million years ago
Steamboat Springs1415464239°22′30″N 119°43′12″W / 39.375°N 119.72°W / 39.375; -119.72 (Steamboat Springs)1.14 million years ago
Soda Lakes1251410439°53′N 119°27′W / 39.883°N 119.450°W / 39.883; -119.450 (Soda Lakes)Holocene
Virgin Valley Caldera---16.38 million years ago
Yucca Mountain2044670736°56′N 116°29′W / 36.933°N 116.483°W / 36.933; -116.483 (Yucca Mountain)80,000 years ago

New Hampshire

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Pawtuckaway Mountains--43°06′39″N 71°11′11″W / 43.11083°N 71.18639°W / 43.11083; -71.18639 (Pawtuckaway Mountains)Cretaceous
Ossipee Mountains--43°44′37″N 71°16′26″W / 43.74361°N 71.27389°W / 43.74361; -71.27389 (Ossipee Mountains)Cretaceous

New Jersey

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Rutan Hill3101,02041°14′43″N 74°40′35″W / 41.24528°N 74.67639°W / 41.24528; -74.67639Ordovician

New Mexico

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Albuquerque volcanic field1,8406,03035°8′29″N 106°46′19″W / 35.14139°N 106.77194°W / 35.14139; -106.7719470,000-170,000 years ago
Capulin Volcano2,4948,18236°47′20″N 103°57′42″W / 36.78889°N 103.96167°W / 36.78889; -103.96167 (Capulin Volcano)58,000–52,000 years ago
Carrizozo Malpais1,7315,67933°47′N 105°56′W / 33.78°N 105.93°W / 33.78; -105.93 (Carrizozo Malpais)3,250 BC ± 500 years ago
Cerros del Rio6642,17835°42′N 106°12′W / 35.7°N 106.2°W / 35.7; -106.2 (Cerros del Rio)2.2 million years ago
Jemez Mountains3,525-35°53′N 106°32′W / 35.88°N 106.53°W / 35.88; -106.53 (Jemez Mountains)60,000-50,000 years ago
Jornada del Muerto Volcano1,5655,13633°32′N 106°52′W / 33.533°N 106.867°W / 33.533; -106.867 (Jornada del Muerto Volcano)760,000 years ago
Kilbourne Hole1,5554,24031°58′N 106°58′W / 31.97°N 106.97°W / 31.97; -106.97 (Kilbourne Hole)80,000 years ago
Mount Taylor2,44511,30035°14′19″N 107°36′30″W / 35.23861°N 107.60833°W / 35.23861; -107.60833 (Mount Taylor)1,500,000 years ago
Shiprock2,1887,17736°41′15″N 108°50′10″W / 36.68750°N 108.83611°W / 36.68750; -108.8361127 million years ago
Sierra Blanca3,65211,98133°22′27″N 105°48′31″W / 33.37417°N 105.80861°W / 33.37417; -105.80861 (Sierra Blanca)26 million years ago
Valles Caldera3,43011,25335°52′N 106°34′W / 35.87°N 106.57°W / 35.87; -106.57 (Valles Caldera)50,000 to 60,000 years ago
Zuni-Bandera volcanic field2,5508,36634°48′N 108°00′W / 34.800°N 108.000°W / 34.800; -108.0001,170 BC ± 300 years

North Carolina

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Hillsborough Caldera--36°4′24″N 78°58′52″W / 36.07333°N 78.98111°W / 36.07333; -78.98111 (Hillsborough Caldera)630 million years ago[26]
Morrow Mountain27690635°21′8.49″N 80°05′34.19″W / 35.3523583°N 80.0928306°W / 35.3523583; -80.0928306 (Pond Mountain Volcanic Center)550 million years ago[27][28]
Pond Mountain Volcanic Center1517.904498036°34′29.1″N 81°39′10.7″W / 36.574750°N 81.652972°W / 36.574750; -81.652972 (Pond Mountain Volcanic Center)760 million years ago[29]

Northern Mariana Islands

[edit]
Major volcanoes of the Mariana Islands
NameElevationLocationLast eruption
metersfeetCoordinates
Agrigan965316518°48′N 145°42′E / 18.8°N 145.7°E / 18.8; 145.7 (Agrigan)1917
Ahyi Seamount-137-44920°25′N 145°02′E / 20.42°N 145.03°E / 20.42; 145.03 (Ahyi)2025 (continuing)
Alamagan744244117°36′N 145°50′E / 17.60°N 145.83°E / 17.60; 145.83 (Dante Rodondi)1887
Anatahan788259216°21′N 145°40′E / 16.35°N 145.67°E / 16.35; 145.67 (Veronica Rodondi)2008
Asuncion Island857281019°42′N 145°24′E / 19.7°N 145.4°E / 19.7; 145.4 (Asuncion)1906
Daikoku Seamount-323-106021°19′N 144°11′E / 21.32°N 144.19°E / 21.32; 144.19 (Daikoku)Holocene
Eifuku-1535-503621°29′06″N 144°02′35″E / 21.485°N 144.043°E / 21.485; 144.043 (Eifuku)Holocene
East Diamante-127-41715°56′N 145°40′E / 15.93°N 145.67°E / 15.93; 145.67 (East Diamante)Holocene
Esmeralda Bank-43-14115°00′N 145°15′E / 15.00°N 145.25°E / 15.00; 145.25 (Ashley Rodondi)Holocene
Farallon de Pajaros3601,18020°30′N 144°54′E / 20.5°N 144.9°E / 20.5; 144.9 (Farallon de Pajaros)1967
Forecast Seamount-1456-477713°24′N 143°55′E / 13.4°N 143.92°E / 13.4; 143.92 (Forecast)Holocene
Fukujin Seamount-217-71221°56′N 143°28′E / 21.93°N 143.47°E / 21.93; 143.47 (Fukujin)1974
Guguan28794217°19′N 145°50′E / 17.32°N 145.83°E / 17.32; 145.83 (Guguan)1883
Kasuga Seamounts-598-196221°45′54″N 143°42′36″E / 21.765°N 143.71°E / 21.765; 143.71 (Kasuga)1959
Maug Islands22774520°01′N 145°13′E / 20.02°N 145.22°E / 20.02; 145.22 (Maug Islands)Pleistocene
Northwest Rota-1-517-169614°36′04″N 144°46′30″E / 14.601°N 144.775°E / 14.601; 144.775 (Northwest Rota-1)2004
Pagan Island570187018°06′N 145°46′E / 18.10°N 145.76°E / 18.10; 145.76 (Pagan Island)2021
Ruby Seamount-230-75515°37′N 145°34′E / 15.62°N 145.57°E / 15.62; 145.57 (Ruby)2023
Sarigan538176516°42′29″N 145°46′48″E / 16.708°N 145.78°E / 16.708; 145.78 (Sarigan)Unknown
Seamount X-1230-403513°15′N 144°01′E / 13.25°N 144.02°E / 13.25; 144.02 (Seamount X)Holocene
South Sarigan Seamount-184-60416°35′N 145°47′E / 16.58°N 145.78°E / 16.58; 145.78 (South Sarigan)2010
Supply Reef-8-2620°08′N 145°06′E / 20.13°N 145.10°E / 20.13; 145.10 (Supply Reef)1989
Zealandia Bank0016°53′N 145°51′E / 16.88°N 145.85°E / 16.88; 145.85 (Zealandia Bank)Holocene

Oregon

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Mount Bachelor2,7639,06443°58′45.90″N 121°41′18.63″W / 43.9794167°N 121.6885083°W / 43.9794167; -121.6885083 (Mount Bachelor)5800 BC ± 750 years
Bald Mountain Caldera--43°25′N 121°25′W / 43.417°N 121.417°W / 43.417; -121.417 (Bald Mountain Caldera)3.4 to 4.6 million years ago
Mount Bailey2,5518,36843°9′18.52″N 122°13′11.98″W / 43.1551444°N 122.2199944°W / 43.1551444; -122.2199944 (Mount Bailey)11,000 to 100,000 years ago
Belknap Crater2,0956,87344°17′05.80″N 121°50′32.04″W / 44.2849444°N 121.8422333°W / 44.2849444; -121.8422333 (Belknap Crater)480 AD
Black Butte1,9626,43644°23′59.0″N 121°38′07.7″W / 44.399722°N 121.635472°W / 44.399722; -121.635472About 1,430,000 years ago
Blue Lake Crater1,2304,03544°24′40″N 121°46′26″W / 44.411°N 121.774°W / 44.411; -121.774 (Blue Lake Crater)680 AD ± 200 years
Broken Top2,8009,18544°04′58″N 121°41′59″W / 44.08278°N 121.69972°W / 44.08278; -121.69972 (Broken Top)About 100,000 years ago
Brown Mountain--42°22′N 122°16′W / 42.36°N 122.27°W / 42.36; -122.27 (Brown Mountain)12,000 to 60,000 years ago
Cinnamon Butte1,9566,41743°14′28″N 122°06′29″W / 43.241°N 122.108°W / 43.241; -122.108 (Cinnamon Butte)4855 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′W / 42.93°N 122.12°W / 42.93; -122.12 (Crater Lake)2850 BC
Crooked River caldera--44°18′N 120°54′W / 44.3°N 120.9°W / 44.3; -120.929.5 million years ago
Diamond Craters1,4504,75043°06′N 118°42′W / 43.1°N 118.7°W / 43.1; -118.7 (Diamond Craters)5610 BC ± 470 years
Diamond Peak2,6658,74443°31′14.5″N 122°08′58.5″W / 43.520694°N 122.149583°W / 43.520694; -122.14958311,000 to 100,000 years ago
Fort Rock1,7165,62843°22′27″N 121°04′08″W / 43.37417°N 121.06889°W / 43.37417; -121.06889 (Fort Rock)13,500 to 18,000 years ago
Gray Butte--44°30′N 121°18′W / 44.5°N 121.3°W / 44.5; -121.3 (Gray Butte)29.5 million years ago
Mount Hood3,42611,23745°22′24.65″N 121°41′45.31″W / 45.3735139°N 121.6959194°W / 45.3735139; -121.6959194 (Mount Hood)1866[30]
Jackies Butte1,4184,65242°36′22″N 117°35′20″W / 42.606°N 117.589°W / 42.606; -117.589 (Jackies Butte)Holocene
Mount Jefferson3,19910,49244°42′N 121°48′W / 44.7°N 121.8°W / 44.7; -121.8 (Mount Jefferson)950 AD
Jordan Craters1,4004,60043°08′49″N 117°27′36″W / 43.147°N 117.460°W / 43.147; -117.460 (Jordan Craters)1250 BC or later
Maiden Peak2,3807,81043°37′37″N 121°57′50″W / 43.62694°N 121.96389°W / 43.62694; -121.96389 (Maiden Peak)Pleistocene
McDermitt Caldera2,0786,816-16.39 ± 0.02 million years ago
Mahogany Mountain--43°14′06″N 117°15′21″W / 43.234976817°N 117.255852547°W / 43.234976817; -117.25585254715.5 million years ago
Mount McLoughlin2,8949,49242°26′40.10″N 122°18′56.23″W / 42.4444722°N 122.3156194°W / 42.4444722; -122.3156194 (Mount McLoughlin)20,000 to 30,000 years ago
Middle Sister3,06310,05044°09′N 121°47′W / 44.150°N 121.783°W / 44.150; -121.783 (Middle Sister)14,000 years ago
Newberry Caldera2,4347,98643°42′N 121°30′W / 43.7°N 121.5°W / 43.7; -121.5 (Newberry Caldera)690 AD ± 100 years
North Sister3,07510,09044°10′N 121°46′W / 44.167°N 121.767°W / 44.167; -121.767 (North Sister)46,000 years ago
Olallie Butte2,2007,21944°49′18.1″N 121°45′50.2″W / 44.821694°N 121.763944°W / 44.821694; -121.76394411,000 years ago or earlier
Pelican Butte--42°31′N 122°04′W / 42.51°N 122.06°W / 42.51; -122.06 (Pelican Butte)60,000 years ago or earlier
Rocky Butte--45°32′48″N 122°33′57″W / 45.546713961°N 122.565940936°W / 45.546713961; -122.56594093630,000 to 90,000 years ago
Round Butte--44°30′N 121°00′W / 44.5°N 121.0°W / 44.5; -121.0 (Round Butte)-
Saddle Butte1,700-43°00′N 117°48′W / 43.00°N 117.80°W / 43.00; -117.80 (Saddle Butte)430,000 ± 90,000 years ago
South Sister3,15810,36044°06′N 121°46′W / 44.100°N 121.767°W / 44.100; -121.767 (South Sister)50 BC
Strawberry Volcanics--44°12′N 118°48′W / 44.2°N 118.8°W / 44.2; -118.8 (Strawberry Volcanics)12.5 to 16.2 million years ago
Mount Sylvania29897845°26′17″N 122°43′21″W / 45.438054°N 122.722407°W / 45.438054; -122.7224071 million years ago or earlier
Mount Tabor-63645°30′46″N 122°35′33″W / 45.5128968°N 122.5925937°W / 45.5128968; -122.5925937300,000 years ago or earlier
Mount Thielsen2,8009,18443°09′10.21″N 122°03′59.45″W / 43.1528361°N 122.0665139°W / 43.1528361; -122.0665139 (Mount Thielsen)290,000 years ago
Three Fingered Jack2,3907,84044°28′42″N 121°50′29″W / 44.47833°N 121.84139°W / 44.47833; -121.84139 (Three Fingered Jack)40,000 to 80,000 years ago
Tower Mountain (Oregon)---22.0 million years ago
Mount Washington2,3767,79044°19′55″N 121°50′13″W / 44.332°N 121.837°W / 44.332; -121.837 (Mount Washington)700 AD
Wildcat Mountain Caldera---36.0 million years ago

Texas

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Cornudas Mountains2145703931°59′42″N 105°32′56″W / 31.995°N 105.549°W / 31.995; -105.549 (Cornudas Mountains)Tertiary
Inge Mountain12541029°10′52″N 99°45′58″W / 29.181°N 99.766°W / 29.181; -99.766 (Inge Mountain)Eocene or possibly Miocene
Pilot Knob16957630°09′43″N 97°42′22″W / 30.162°N 97.706°W / 30.162; -97.706 (Pilot Knob)79 to 83 million years ago (late Cretaceous)

Utah

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Bald Knoll Volcanic Field2,1357,00537°19′41″N 112°24′29″W / 37.328°N 112.408°W / 37.328; -112.408 (Bald Knoll)300,000 years ago or later
Black Rock Desert Volcanic Field1,8005,90438°58′12″N 112°30′00″W / 38.970°N 112.500°W / 38.970; -112.500 (Black Rock Desert volcanic field)1290 AD ± 150 years
Fumarole Butte1,6095,27939°36′54″N 112°48′11″W / 39.615°N 112.803°W / 39.615; -112.803 (Fumarole Butte)900,000 years ago
Indian Peak-Caliente Caldera Complex--38°00′00″N 114°00′00″W / 38.000°N 114.000°W / 38.000; -114.000 (Indian Peak-Caliente Caldera Complex)18 million years ago
Marysvale Volcanic Field3,69412,13738°30′00″N 112°30′00″W / 38.500°N 112.500°W / 38.500; -112.500 (Marysvale volcanic field)19 million years ago
Markagunt Plateau Volcanic Field2,8409,31837°37′01″N 112°49′30″W / 37.617°N 112.825°W / 37.617; -112.825 (Markagunt Plateau)1050 AD
Santa Clara Volcanic Field1,4654,80637°15′25″N 113°37′30″W / 37.257°N 113.625°W / 37.257; -113.625 (Santa Clara)32,000 years ago
Wah Wah Springs Caldera1,6725,48538°28′44″N 113°29′20″W / 38.479°N 113.489°W / 38.479; -113.489 (Markagunt Plateau)30.06 million years ago

Virginia

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Culpeper Basin--38°23′55″N 77°25′18″W / 38.39861°N 77.42167°W / 38.39861; -77.42167 (Mount Zion Church Basalt)201 million years ago (late Triassic)[31]
Mole Hill577 1,89338°26′26″N 78°57′12″W / 38.44056°N 78.95333°W / 38.44056; -78.95333 (Mole Hill)47 million years ago (early Eocene)
Trimble Knob952 3,123 38°24′17″N 79°35′16″W / 38.40472°N 79.58778°W / 38.40472; -79.58778 (Trimble Knob)35 million years ago (late Eocene)
Catoctin Formation--40°44′31″N 73°49′22″W / 40.74194°N 73.82278°W / 40.74194; -73.82278 (Catoctin metabasalt)560 million years ago (Ediacaran)
Battle Mountain354 1,162 38°39′26″N 78°3′36″W / 38.65722°N 78.06000°W / 38.65722; -78.06000 (Battle Mountain)704 million years ago (Cryogenian)

Washington

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Battle Ground Lake22975045°48′19″N 122°39′29″W / 45.80528°N 122.65806°W / 45.80528; -122.65806 (Battle Ground Lake)105,000 years ago
Black Buttes2,857 9,373 48°46′09″N 121°51′10″W / 48.7692861°N 121.8526467°W / 48.7692861; -121.8526467 (Black Buttes)500,000 to 300,000 years ago
Mount Adams3,74312,28146°12′09″N 121°29′27″W / 46.20250°N 121.49083°W / 46.20250; -121.49083 (Mount Adams)500 BC ± 1000 years
Mount Baker3,28510,77848°46′38″N 121°48′48″W / 48.77722°N 121.81333°W / 48.77722; -121.81333 (Mount Baker)1880
Glacier Peak3,21310,54148°06′45″N 121°06′50″W / 48.11250°N 121.11389°W / 48.11250; -121.11389 (Glacier Peak)1700 ± 100 years
Goat Rocks2,4948,18446°30′N 121°27′W / 46.50°N 121.45°W / 46.50; -121.45 (Goat Rocks)500,000 years ago
Indian Heaven1,5135,92545°56′N 121°49′W / 45.93°N 121.82°W / 45.93; -121.82 (Indian Heaven)~6250 BC
Lone Butte1457 4,78046°03′16″N 121°50′21″W / 46.05444°N 121.83917°W / 46.05444; -121.83917 (Lone Butte)Either 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 / 45.9°N 122.0°W / 45.9; -122.0 (Marble Mountain-Trout Creek Hill volcanic zone)~7700 years ago
Mount Rainier4,39214,41146°51′11″N 121°45′35″W / 46.85306°N 121.75972°W / 46.85306; -121.75972 (Mount Rainier)1894
Mount St. Helens2,5508,36446°11′28″N 122°11′39″W / 46.19111°N 122.19417°W / 46.19111; -122.19417 (Mount St. Helens)2008
Mount Si1,2704,16747°30′27″N 121°44′24″W / 47.50750°N 121.74000°W / 47.50750; -121.74000 (Mount Si)Cretaceous to Jurassic
Pinnacle Peak5491,80147°10′25″N 121°58′24″W / 47.17361°N 121.97333°W / 47.17361; -121.97333 (Pinnacle Peak)
Silver Star Mountain1,3304,36445°44′51.8″N 122°14′20.5″W / 45.747722°N 122.239028°W / 45.747722; -122.239028Pluton formed 20 million years ago
Simcoe Mountains19546,41046°06′N 120°54′W / 46.1°N 120.9°W / 46.1; -120.9 (Simcoe Mountains)631,000 ± 27,000 years ago
Trout Creek Hill8902,92045°50′11″N 121°59′41″W / 45.8365040°N 121.9948065°W / 45.8365040; -121.9948065 (Trout Creek Hill)340,000 years ago
Tumtum Mountain6112,00445°56′03″N 122°20′13″W / 45.93414°N 122.33695°W / 45.93414; -122.33695 (Tumtum Mountain)70,000 years ago
West Crater1,3294,36045°53′N 122°05′W / 45.88°N 122.08°W / 45.88; -122.08 (West Crater)~6000 BC
White Chuck Cinder Cone1,8306,00248°03′N 121°10′W / 48.05°N 121.17°W / 48.05; -121.17 (White Chuck Cinder Cone)Between 17,000 and 2,000 years ago

West Virginia

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Ugly Mountain7922,59838°26′11″N 79°19′25″W / 38.4365116°N 79.3236511°W / 38.4365116; -79.3236511 (Ugly Mountain)42.8 ±0.5 Ma[32][33]

Wyoming

[edit]
NameElevationLocationLast eruption
metersfeetCoordinates
Yellowstone Caldera2,8059,20344°28′16″N 110°30′07″W / 44.471031°N 110.501862°W / 44.471031; -110.501862 (Yellowstone Plateau)70,000 years ago (magmatic) / 1350 BC ± 200 years (hydrothermal)

See also

[edit]

References

[edit]
  1. ↑ "Capital – Historic eruptions". www.avo.alaska.edu. Retrieved June 8, 2018.
  2. ↑ "Cleveland – Introduction". Archived from the original on September 15, 2022. Retrieved October 1, 2014.
  3. ↑ "USGS DDS-40, Volcanoes of the Alaska Peninsula and Aleutian Islands – Album". pubs.usgs.gov. Retrieved June 13, 2018.
  4. ↑ "gilbert – Introduction". avo.alaska.edu. Retrieved June 13, 2018.
  5. ↑ "Global Volcanism Program | Kialagvik". volcano.si.edu. Retrieved June 14, 2018.
  6. ↑ "Global Volcanism Program | Kukak". volcano.si.edu. Retrieved June 14, 2018.
  7. ↑ "Westdahl Peak description and information". www.avo.alaska.edu. Retrieved June 17, 2018.
  8. ↑ "Roundtop – Historic eruptions". www.avo.alaska.edu. Archived from the original on June 17, 2018. Retrieved June 17, 2018.
  9. ↑ "Global Volcanism Program | Sergief". volcano.si.edu. Retrieved June 17, 2018.
  10. ↑ "Wide Bay cone – Introduction". www.avo.alaska.edu. Retrieved June 17, 2018.
  11. ↑ Jicha, Brian; Coombs, Michelle; T. Calvert, Andrew; Singer, Brad (May 1, 2012). "Geology and 40Ar/39Ar geochronology of the medium- to high-K Tanaga volcanic cluster, western Aleutians". Geological Society of America Bulletin. 124 (5–6): 842–856. Bibcode:2012GSAB..124..842J. doi:10.1130/B30472.1.
  12. ↑ "Tana". www.volcanodiscovery.com. Retrieved June 17, 2018.
  13. ↑ "Global Volcanism Program | Tlevak Strait-Suemez Is". volcano.si.edu. Retrieved June 17, 2018.
  14. ↑ Richter, D. H.; Moll-Stalcup, E. J.; Miller, T. P.; Lanphere, M. A.; Dalrymple, G. B.; Smith, R. L. (March 1994). "Eruptive history and petrology of Mount Drum volcano, Wrangell Mountains, Alaska". Bulletin of Volcanology. 56 (1): 29–46. Bibcode:1994BVol...56...29R. doi:10.1007/bf00279727. ISSN 0258-8900. S2CID 128820426.
  15. ↑ Harris, Ann G.; Tittle, Esther; Tittle, Sherwood D. (2004). Geology of National Parks. Kendall Hunt. ISBN 9780787299705.
  16. ↑ "Global Volcanism Program | Tutuila". Smithsonian Institution | Global Volcanism Program. Retrieved September 11, 2023.
  17. ↑ "San Francisco Peaks Geology". www.snowbowl.ski. Retrieved August 15, 2018.
  18. ↑ Muffler, L.J. Patrick; Clynne, Michael A. (2015). "Geologic Field-Trip Guide to Lassen Volcanic National Park and Vicinity, California" (PDF). United States Geological Survey. p. 21. Retrieved July 8, 2018.
  19. ↑ McKINNEY, JOHN (March 25, 2001). "Exploring Volcanic Remnants in the Bay Area" – via LA Times.
  20. ↑ "Global Volcanism Program | Tumble Buttes". volcano.si.edu. Retrieved June 29, 2018.
  21. 1 2 "Yellowstone". Global Volcanism Program. Smithsonian Institution. Retrieved December 31, 2008.
  22. ↑ "Hicks Dome - Illinois State Geological Survey".
  23. ↑ "Latent Thermal Effects from Porcupine Volcanic Calderas Underlying the White Pine Straitform Copper Mineralization". researchgate.net. Retrieved September 5, 2019.
  24. ↑ Trexler, D (2001). "Two Medicine Formation, Montana: geology and fauna". Mesozoic Vertebrate Life. Indiana University Press.
  25. ↑ "Elkhorn Mountains Volcanoes" (PDF). Archived from the original (PDF) on June 20, 2010. Retrieved January 11, 2012.
  26. ↑ "A Geologic Adventure Along the Eno River" (PDF). files.nc.gov.
  27. ↑ "Natural History". Hardaway. Retrieved December 27, 2025.
  28. ↑ "Geographic Names Information Systems". National Maps. United States Geological Survey. Retrieved December 27, 2025.
  29. ↑ "Mt. Rogers Formation".
  30. ↑ "Global Volcanism Program – Hood".
  31. ↑ Marzoli, Andrea; Jourdan, Fred; Puffer, John H.; Cuppone, Tiberio; Tanner, Lawrence H.; Weems, Robert E.; Bertrand, Hervé; Cirilli, Simonetta; Bellieni, Giuliano; De Min, Angelo (March 2011). "Timing and duration of the Central Atlantic magmatic province in the Newark and Culpeper basins, eastern U.S.A.". Lithos. 122 (3–4): 175–188. doi:10.1016/j.lithos.2010.12.013. Retrieved December 27, 2025.
  32. ↑ "Ugly Mountain Topo Map in Pendleton County WV". www.topozone.com. Retrieved December 27, 2025.
  33. ↑ McDowell, Ronald; Avary, Katharine; Matchen, David (April 26, 2023). "FIELD GUIDE TO THE MIDDLE EOCENE IGNEOUS ROCKS OF PENDLETON COUNTY, WV AND NORTHERN HIGHLAND COUNTY, VA" (PDF). Morgantown, WV: West Virginia Geological and Economic Survey. Retrieved December 27, 2025.
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