List of impact craters in North America

This list includes all 60 confirmed impact craters in North America in the Earth Impact Database (EID). These features were caused by the collision of large meteorites or comets with the Earth. For eroded or buried craters, the stated diameter typically refers to an estimate of original rim diameter, and may not correspond to present surface features.

World map in equirectangular projection of the craters on the Earth Impact Database as of November 2017 (in the SVG file, hover over a crater to show its details)

Canada

Name Location Diameter (km) Age (Ma/millions) Coordinates
Brent Ontario 3.8 396 ± 20 46°5′N 78°29′W
Carswell Saskatchewan 39 115 ± 10 58°27′N 109°30′W
Charlevoix Quebec 54 342 ± 15 47°32′N 70°18′W
Couture Quebec 8 430 ± 25 60°8′N 75°20′W
Deep Bay Saskatchewan 13 99 ± 4 56°24′N 102°59′W
Eagle Butte Alberta 10 < 65 49°42′N 110°30′W
Elbow Saskatchewan 8 395 ± 25 50°59′N 106°43′W
Gow Saskatchewan 4 < 250 56°27′N 104°29′W
Haughton Devon Island, Nunavut 23 39 75°23′N 89°40′W
Holleford Ontario 2.35 550 ± 100 44°28′N 76°38′W
Île Rouleau Quebec 4 < 300 50°41′N 73°53′W
La Moinerie Quebec 8 400 ± 50 57°26′N 66°37′W
Lac à l'Eau Claire Est
Clearwater East
Quebec 26 290 ± 20 56°04′N 74°06′W
Lac à l'Eau Claire Ouest
Clearwater West
Quebec 36 290 ± 20 56°13′N 74°30′W
Manicouagan Quebec 100 214 ± 1 51°23′N 68°42′W
Maple Creek Saskatchewan 6 < 75 49°48′N 109°6′W
Mistastin Labrador 28 36.4 ± 4 55°53′N 63°18′W
Montagnais Nova Scotia 45 50.50 ± 0.76 42°53′N 64°13′W
Nicholson Northwest Territories 12.5 < 400 62°40′N 102°41′W
Pilot Northwest Territories 6 445 ± 2 60°17′N 111°0′W
Pingualuit
formerly Chubb and Nouveau-Québec
Quebec 3.44 1.4 ± 0.1 61°17′N 73°40′W
Presqu'île Quebec 24 < 500 49°43′N 74°48′W
Tunnunik Northwest Territories 25 ~130-350 72°28′N 113°56′W[1]
Saint Martin Manitoba 40 220 ± 32 51°47′N 98°32′W
Slate Islands Ontario 30 about 450 48°40′N 87°0′W
Steen River Alberta 25 91 ± 7 59°30′N 117°38′W
Sudbury Ontario 250 1850 ± 3 46°36′N 81°11′W
Viewfield Saskatchewan 2.5 190 ± 20 49°35′N 103°4′W
Wanapitei Ontario 7.5 37.2 ± 1.2 46°45′N 80°45′W
West Hawk Manitoba 2.44 351 ± 20 49°46′N 95°11′W
Whitecourt Alberta 0.04 <0.0011 54°00′N 115°36′W

Mexico

Name Location Diameter (km) Age (Ma/millions) Coordinates
Chicxulub Yucatan 170 64.98 ± 0.05 21°20′N 89°30′W

United States

Name Location Diameter (km) Age (Ma/millions) Coordinates
Ames Oklahoma 16 470 ± 30 36°15′N 98°12′W
Avak Alaska 12 < 95 71°15′N 156°30′W
Barringer Arizona 1.19 0.049 ± 0.003 35°2′N 111°1′W
Beaverhead Idaho, Montana 60 600 44°15′N 114°0′W
Calvin Michigan 8.5 450 ± 10 41°50′N 85°57′W
Chesapeake Bay Virginia 90 35.5 ± 0.3 37°17′N 76°1′W
Cloud Creek Wyoming 7 190 ± 30 43°7′N 106°45′W
Crooked Creek Missouri 7 320 ± 80 37°50′N 91°23′W
Decaturville Missouri 6 < 300 37°54′N 92°43′W
Des Plaines Illinois 8 < 280 42°3′N 87°52′W
Flynn Creek Tennessee 3.8 360 ± 20 36°17′N 85°40′W
Glasford Illinois 4 < 430 40°36′N 89°47′W
Glover Bluff Wisconsin 8 < 500 43°58′N 89°32′W
Haviland Kansas 0.015 < 0.001 37°35′N 99°10′W
Kentland Indiana 13 < 97 40°45′N 87°24′W
Manson Iowa 35 73.8 ± 0.3 42°35′N 94°33′W
Marquez Texas 12.7 58 ± 2 31°17′N 96°18′W
Middlesboro Kentucky 6 < 300 36°37′N 83°44′W
Newporte North Dakota 3.2 < 500 48°58′N 101°58′W
Odessa Texas 0.168 < 0.050 31°45′N 102°29′W
Red Wing North Dakota 9 200 ± 25 47°36′N 103°33′W
Rock Elm Wisconsin 6 < 505 44°43′N 92°14′W
Santa Fe New Mexico 6-13 <1200 35°45′N 105°56′W
Serpent Mound Ohio 8 < 320 39°2′N 83°24′W
Sierra Madera Texas 13 < 100 30°36′N 102°55′W
Upheaval Dome Utah 10 < 170 38°26′N 109°56′W
Wells Creek Tennessee 12 200 ± 100 36°23′N 87°40′W
Wetumpka Alabama 7.6 ~83 32°31′N 86°10′W[2][3]

Unconfirmed impact craters

The following craters are officially considered "unconfirmed" because they are not listed in the Earth Impact Database. Due to stringent requirements regarding evidence and peer-reviewed publication, newly discovered craters or those with difficulty collecting evidence generally are known for some time before becoming listed. However, entries on the unconfirmed list could still have an impact origin disproven.

Name Location Diameter (km) Age (years) Coordinates Probability
Alamo bolide impact Nevada, USA unknown 367 million
Bow City Alberta 8 km 70 million 50°25′N 112°16′W
Corossol Quebec 4 km 2.6 million 50°03′N 66°23′W
Decorah crater Iowa, USA 5.6 470 million 43°18′49.73″N 91°46′20.04″W 2 (probable)[4][5]
Gatun structure Panama 2.73.0 20 million 09°06′N 79°47′W 2 (probable)[6]
Pantasma Nicaragua 10 1 million 13.37°N 85.95°W / 13.37; -85.95 (Pantasma) 4 (not probable)[6]
Jeptha Knob Kentucky, USA 4.3 425 million 38°11′N 85°07′W 2 (probable)[6]
Panther Mountain New York, USA 10 375 million 42°03′N 74°24′W 2 (probable)[6]
Snows Island South Carolina, USA 11 unknown 33°49′N 79°22′W 2 (probable)[6]
Toms Canyon New Jersey, USA 22 35 million 39°08′N 72°51′W 2 (probable)[6]
Victoria Island structure California, USA 5.5 3749 million 37.889925°N 121.534672°W / 37.889925; -121.534672 (Victoria Island structure)[7] 2 (probable)[6]
Weaubleau-Osceola Missouri, USA 15–20 325.0 ± 15.0 million 37°59′N 93°38′W 2 (probable)[6]
Brushy Creek Feature Louisiana, USA 2 11,000 - 30,000 years 30.768°N 90.735°W / 30.768; -90.735 (Brushy Creek Feature) 2 (probable).[8][9][10]

See also

References

  1. July 25, 2012. "Researchers discover new impact crater in the Arctic," Archived 2013-02-19 at WebCite University of Saskatchewan, Accessed August 8, 2012. NOTE: Geographic coordinates are in the comments section.
  2. King Jr., David T. (April 23, 2010). "Wetumpka Crater". The Encyclopedia of Alabama. Alabama Humanities Foundation. Retrieved February 7, 2013.
  3. "Wetumpka's Coastal Impact Crater". City of Wetumpka. Retrieved February 7, 2013.
  4. Vastag, Brian (18 February 2013). "Crater found in Iowa points to asteroid break-up 470 million years ago". Washington Post. Retrieved 19 February 2013.
  5. U.S. Geological Survey. "Iowa Meteorite Crater Confirmed". Retrieved 7 March 2013.
  6. Rajmon, David (October 10, 2009). "Impact Database 2009.2" (Excel). Impact Field Studies Group. Retrieved December 28, 2009.
  7. "Victoria Island". Geographic Names Information System. United States Geological Survey.
  8. Heinrich, P.V. (2003) Possible Meteorite Impact Crater in St. Helena Parish, Louisiana. Search and Discovery Article. no. 50006. American Association of Petroleum Geologist, Tulsa, Oklahoma. Retrieved March 27, 2011.
  9. Heinrich, P.V. (2003) Origin of a Circular Depression and Associated Fractured and Shocked Quartz, St. Helena Parish, LA. Transactions of the Gulf Association of Geological Societies. vol. 53, pp. 313-322.
  10. Anonymous, 2008, LGS Researcher Featured in Meteor Crater News Story. Archived 2012-03-21 at the Wayback Machine Center for Energy Studies, Louisiana State University Baton Rouge, LA 70803. Retrieved March 27, 2011.
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