This list includes all 60 confirmed
impact craters in North America in the Earth Impact Database. (There are 59 if Calvin crater is excluded.) 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.
United States [ edit ]
Unconfirmed impact craters [ edit ]
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.
Alamo bolide impact
Nevada, USA unknown
Alberta 8 km
50°25′N 112°16′W / 50.417°N 112.267°W
Quebec 4 km
50°03′N 66°23′W / 50.050°N 66.383°W
Iowa, USA 5.6
43°18′49.73″N 91°46′20.04″W / 43.3138139°N 91.7722333°W 2 (probable)
09°06′N 79°47′W / 9.100°N 79.783°W 2 (probable)
13°22′N 85°57′W / 13.37°N 85.95°W 4 (not probable)
Kentucky, USA 4.3
38°11′N 85°07′W / 38.183°N 85.117°W 2 (probable)
New York, USA 10
42°03′N 74°24′W / 42.050°N 74.400°W 2 (probable)
South Carolina, USA 11
33°49′N 79°22′W / 33.817°N 79.367°W 2 (probable)
New Jersey, USA 22
39°08′N 72°51′W / 39.133°N 72.850°W 2 (probable)
Victoria Island structure
California, USA 5.5
37°53′24″N 121°32′05″W / 37.889925°N 121.534672°W  2 (probable)
Missouri, USA 15–20
325.0 ± 15.0 million
37°59′N 93°38′W / 37.983°N 93.633°W 2 (probable)
Brushy Creek Feature
Louisiana, USA 2
11,000 - 30,000 years
30°46′05″N 90°44′06″W / 30.768°N 90.735°W 2 (probable).
  
See also [ edit ]
References [ edit ]
^ Ferrière, L., Meteorite Impact Structures
^ July 25, 2012. "Researchers discover new impact crater in the Arctic," University of Saskatchewan, Accessed August 8, 2012. NOTE: Geographic coordinates are in the comments section.
^ King, Jr., David T. (April 23, 2010). "Wetumpka Crater". The Encyclopedia of Alabama. Alabama Humanities Foundation . Retrieved . February 7, 2013
^ "Wetumpka's Coastal Impact Crater". City of Wetumpka . Retrieved . February 7, 2013
^ Vastag, Brian (18 February 2013). "Crater found in Iowa points to asteroid break-up 470 million years ago". Washington Post . Retrieved . 19 February 2013
^ U.S. Geological Survey. "Iowa Meteorite Crater Confirmed" . Retrieved . 7 March 2013
^ a b c d e f g h Rajmon, David (October 10, 2009). "Impact Database 2009.2" (Excel). Impact Field Studies Group . Retrieved . December 28, 2009
^ "Victoria Island". . Geographic Names Information System United States Geological Survey.
^ 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.
^ 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.
^ Anonymous, 2008, LGS Researcher Featured in Meteor Crater News Story. Center for Energy Studies, Louisiana State University Baton Rouge, LA 70803. Retrieved March 27, 2011.
External links [ edit ]