From Handwiki According to the Planetary and Space Science Centre (PASSC) at the University of New Brunswick in Canada, there are 190 confirmed impact structures on Earth. Each is recorded in a database called the Earth Impact Database (EID).[1]
The following tables list geological features on Earth that are known impact events as well as possible, but for which there is currently no confirming scientific evidence in the peer-reviewed literature, impact events. In order for a structure to be confirmed as an impact crater, it must meet a stringent set of well-established criteria. Some proposed impact structures are likely to eventually be confirmed, whereas others are likely to be shown to have been misidentified (see below). Recent extensive surveys have been done for Australian (2005),[2] African (2014),[3] and South American (2015)[4] craters, as well as those in the Arab world (2016).[5] A book review by A. Crósta and U. Reimold disputes some of the evidence presented for several of the South American structures.[6]
| Name | Location | Country | Diameter (km) | Age (Ma) | Confirmed | Notes | Image | Coordinates |
|---|---|---|---|---|---|---|---|---|
| 38th Parallel structures | Missouri, etc. | United States | 9.5 2-17
|
320 320 ± 10
|
[7] | ![]() |
[ ⚑ ] 37°30′N 88°18′W / 37.5°N 88.3°W [ ⚑ ] 37°48′N 90°12′W / 37.8°N 90.2°W [ ⚑ ] 37°48′N 91°24′W / 37.8°N 91.4°W [ ⚑ ] 37°54′N 92°42′W / 37.9°N 92.7°W [ ⚑ ] 37°42′N 92°24′W / 37.7°N 92.4°W [ ⚑ ] 38°00′N 93°36′W / 38.0°N 93.6°W [ ⚑ ] 37°42′N 95°42′W / 37.7°N 95.7°W | |
| Acraman | South Austrialia | Australia | 90 | 590 | Yes | [8] | [ ⚑ ] 32°1′S 135°27′E / 32.017°S 135.45°E | |
| Ak-Bura (Murgab) | Tajikistan | Tajikistan | 0.080 | 0.0003 0.0003 (1700 AD)
|
[9][10][11][12] | [ ⚑ ] 38°5′38.5″N 74°16′58″E / 38.094028°N 74.28278°E | ||
| Al Madafi | Saudi Arabia | Saudi Arabia | 6 | 36 6-66
|
[13][14][15] | [ ⚑ ] 28°40′N 37°11′E / 28.67°N 37.18°E | ||
| Alamo bolide impact | Nevada | United States | 100 100 ± 40
|
367 | [16][17] [note 1] | [ ⚑ ] 37°19′N 116°11′W / 37.31°N 116.18°W | ||
| Amelia Creek | Northern Territory | Australia | 20 | 600-1660 | Yes | 20°55′S 134°50′E | ||
| Ames | Oklahoma | United States | 470 ± 30 | Yes | 36° 17′ 4″ N, 98° 11′ 38″ W | |||
| Amguid | Algeria | 1 <1
|
Yes | ![]() |
26° 5′ 16″ N, 4° 23′ 43″ E | |||
| Anéfis | Mali | Mali | 3.9 | 23 23?
|
[20][9][21][22] | [ ⚑ ] 18°04′19″N 0°02′53″W / 18.072°N 0.048°W | ||
| Aorounga Central | Chad | Chad | 11.6 | 345 <345
|
Yes | [23][24][25] | ![]() |
[ ⚑ ] 19°13′44″N 19°15′40″E / 19.229°N 19.261°E |
| Aouelloul | Mauritania | Mauritania | 0.39 | 3.0 ± 0.3 | Yes | |||
| Araguainha | Central Brazil | Brazil | 40 | 244.4 | Yes | 16°47′S 52°59′W | ||
| Arganaty | Almaty region | Kazakhstan | 300 | 250 | [26][27][28][note 1] | [ ⚑ ] 46°30′N 79°48′E / 46.5°N 79.8°E | ||
| Arlit | Niger | Niger | 10 | ? | [29][30][31] | [ ⚑ ] 21°21′11″N 9°08′42″E / 21.353°N 9.145°E | ||
| Avak | Alaska | United States | 12 | 3-95 | Yes | [32] | ||
| Azuara | Spain | Spain | 37.5 35-40
|
35 30-40
|
[33] | ![]() |
[ ⚑ ] 41°07′N 0°13′W / 41.117°N 0.217°W | |
| Bajada del Diablo | Argentina | Argentina | 40 | 0.45 0.45 ± 0.3
|
[34][35][36] | [ ⚑ ] 42°46′S 67°24′W / 42.767°S 67.4°W | ||
| Bajo Hondo | Argentina | Argentina | 3.9 | 9 <10
|
[37][38] | [ ⚑ ] 42°15′S 67°55′W / 42.25°S 67.917°W | ||
| Bangui magnetic anomaly | Central African Republic | Central African Republic | 700 600-800?
|
543 >542
|
[39][3][40] | [ ⚑ ] 6°00′N 18°18′E / 6°N 18.3°E | ||
| Barringer Meteorite | Arizona | United States | 1.18 | 0.049 ± 0.003 | Yes | [41] | ||
| Bateke Plateau | Gabon | Gabon | 7.1 | 2.6 <2.6
|
[42][43] | [ ⚑ ] 0°38′45″S 14°27′29″E / 0.64583°S 14.45806°E | ||
| Beaverhead | Montana | United States | 60 | 600 | Yes | 44°15′N 114°0′W | ||
| Bedout | Australia (offshore) | Australia | 250 | 250 | [44][45][2] | [ ⚑ ] 18°S 119°E / 18°S 119°E | ||
| Beyenchime-Salaatin | Russia | Russia | 8 | 40 ± 20 | Yes | |||
| Bee Bluff | Texas | United States | 2.4 | 40 40?
|
[46][47][48][note 1] | [ ⚑ ] 29°02′N 99°51′W / 29.03°N 99.85°W | ||
| Bigach | Kazakhstan | Kazakhstan | 8 | 5 ± 3 | Yes | |||
| Björkö | Björkö, Ekerö | Sweden | 10 | 1200 | [49][50] | [ ⚑ ] 59°18′N 17°36′E / 59.30°N 17.60°E | ||
| Bloody Creek | Nova Scotia | Canada | 40 | ? | [51] | [ ⚑ ] 44°45′N 65°14′W / 44.75°N 65.233°W | ||
| Bohemian | Czech Republic | Czech Republic | 280 260-300
|
700 >700?
|
[52][9][53][54] | [ ⚑ ] 50°00′N 14°42′E / 50.0°N 14.7°E | ||
| Boltysh | Kirovohrad Oblast | Ukraine | 24 | 65.17 | Yes | 48°54′N 32°15′E | ||
| Bow City | Alberta | Canada | 8 | 70 | [55] | [ ⚑ ] 50°25′N 112°16′W / 50.417°N 112.267°W | ||
| Bowers | Antarctic Ocean (Ross Sea) | 100 | 4 3-5
|
[56][57][58][59] | [ ⚑ ] 71°12′S 176°00′E / 71.2°S 176°E | |||
| Brushy Creek Feature | Louisiana | United States | 2.0 | 0.0205 0.011–0.030
|
[60][61][62][63] | [ ⚑ ] 30°46′N 90°44′W / 30.76°N 90.73°W | ||
| Bukit Bunuh | Perak | Malaysia | 5–6 | 1.34–1.84 | [64][65] | [ ⚑ ] 5°04′30″N 100°58′30″E / 5.075°N 100.975°E | ||
| Burckle | Indian Ocean | 30 30?
|
0.005 3000 BC
|
[66][67][68] | [ ⚑ ] 30°52′S 61°22′E / 30.86°S 61.36°E | |||
| Carswell | Saskatchewan | Canada | 39 | 115 | Yes | 58°27′N 109°30′W | ||
| Catalina structures (Navy, Catalina, Emery Knoll) |
Pacific Ocean (NE) | 32 12, 32, 37
|
17 16-18
|
[69][70][71] | [ ⚑ ] 32°55′N 118°05′W / 32.91°N 118.09°W | |||
| Cerro do Jarau | Paraná | Brazil | 10 | 117 | [72][73][74] | [ ⚑ ] 30°12′S 56°32′W / 30.2°S 56.533°W | ||
| Charity Shoal | Ontario | Canada | 1.2 | 469 <470
|
[75][76][77][78] | ![]() |
[ ⚑ ] 44°2′15″N 76°29′37″W / 44.0375°N 76.49361°W | |
| Charlevoix | Quebec | Canada | 54 | 342 | Yes | 47°32′N 70°18′W | ||
| Chesapeake Bay | Virginia | United States | 40 | 34.86 ± 0.23 | Yes | [79] | 37°17′N 76°1′W | |
| Clearwater East | Quebec | Canada | 26 | 460-470 | Yes | [80] | ||
| Clearwater West | Quebec | Canada | 36 | 290 | Yes | 56°13′N 74°30′W | ||
| Chicxulub | Yucatan | Mexico | 150 | 66.051 ± 0.031 | Yes | 21°20′N 89°30′W | ||
| Corossol | Quebec | Canada | 4 | 469 <470
|
[81][82][83][84] | [ ⚑ ] 50°03′N 66°23′W / 50.05°N 66.383°W | ||
| Darwin Crater | Tasmania | Australia | 1.2 | 0.816 | [85][note 1] | ![]() |
[ ⚑ ] 42°19′S 145°40′E / 42.317°S 145.667°E | |
| Decorah | Iowa | United States | 5.6 | 470 | [86][87][88] | ![]() |
[ ⚑ ] 43°18′50″N 91°46′20″W / 43.31389°N 91.77222°W | |
| Deniliquin | New South Wales | Australia | 520 | 400-500 | No | [ ⚑ ] 35°32′0″S 144°58′0″E / 35.533333°S 144.966667°E | ||
| Dhala | Madhya Pradesh | India | 11 | 1700-2100 | Yes | 25°18′N 78°8′E | ||
| Diamantina River ring feature | Queensland | Australia | 120 | 300 | [89][90] | ![]() |
[ ⚑ ] 22°09′S 141°54′E / 22.15°S 141.9°E | |
| Dumas magnetic anomaly | Saskatchewan | Canada | 3.2 | 70 70 ± 5
|
[91][92] | [ ⚑ ] 49°55′N 102°07′W / 49.92°N 102.12°W | ||
| Duolun | Inner Mongolia | China | 120 120 ± 50
|
129 129 ± 3
|
[93][94] | [ ⚑ ] 42°3′N 116°15′E / 42.05°N 116.25°E | ||
| El-Baz | Egypt | Egypt | 4 | ? | [ ⚑ ] 24°12′N 26°24′E / 24.2°N 26.4°E | |||
| Eltanin | Pacific Ocean (SE) | 35 35?
|
2.5 | [95][96][97][note 1] | [ ⚑ ] 57°47′S 90°47′W / 57.783°S 90.783°W | |||
| Faya Basin | Chad | Chad | 2 | 385 385 ± 15
|
[98][99] | [ ⚑ ] 18°10′N 19°34′E / 18.167°N 19.567°E | ||
| Falkland Plateau anomaly | Atlantic Ocean (near Falkland Islands) |
275 250-300
|
250 | [100][101][102][103][104] | [ ⚑ ] 51°S 62°W / 51°S 62°W | |||
| Fried Egg structure | Atlantic Ocean (near Azores) | 6 | 17 | [105][106] | [ ⚑ ] 36°N 27°W / 36°N 27°W | |||
| Garet El Lefet | Libya | Libya | 3 | ? | [107][108][109] | [ ⚑ ] 25°00′N 16°30′E / 25.0°N 16.5°E | ||
| Gatun | Panama | Panama | 3 | 20 | [110][111][112] | [ ⚑ ] 09°05′58″N 79°47′22″W / 9.09944°N 79.78944°W | ||
| General San Martín | Argentina | Argentina | 11 | 1.2 | [113][114][115] | [ ⚑ ] 38°0′S 63°18′W / 38°S 63.3°W | ||
| Gnargoo | Western Australia | Australia | 75 | 299 <300
|
[116][117] | [ ⚑ ] 24°48′24″S 115°13′29″E / 24.80667°S 115.22472°E | ||
| Gosses Bluff | Northern Territory | Australia | 22 | 142.5 | Yes | 23°49′S 132°18′E | ||
| Guarda | Portugal | Portugal | 30 | 200 | [118][119][120] | [ ⚑ ] 40°38′N 07°06′W / 40.633°N 7.1°W | ||
| Hartney anomaly | Manitoba | Canada | 8 | 120 120 ± 20
|
[121][92][122] | [ ⚑ ] 49°24′N 100°40′W / 49.4°N 100.67°W | ||
| Haughton | Nunavut | Canada | 23 | 39 | Yes | 75°23′N 89°40′W | ||
| Hiawatha | Greenland | Greenland | 31 | 57.99 57.99 ± 0.54
|
[123][124][125] | File:Hiawatha v45 scene1 4k 5mtopo.1760.tif | [ ⚑ ] 78°44′N 66°14′W / 78.733°N 66.233°W | |
| Hico | Texas | United States | 9 | 59 <60
|
[126][127][128] | [ ⚑ ] 32°01′N 98°02′W / 32.01°N 98.03°W | ||
| Hotchkiss | Alberta | Canada | 4 | 220 220 ± 100
|
[129][130] | [ ⚑ ] 57°32′20″N 118°52′41″W / 57.539°N 118.878°W | ||
| Howell | Tennessee | United States | 2.5 | 380 380 ± 10
|
[131][132][133] | [ ⚑ ] 35°14′N 86°37′W / 35.23°N 86.61°W | ||
| Ibn-Batutah | Libya | Libya | 2.5 | 120 120 ± 20
|
[134][135] | [ ⚑ ] 21°34′10″N 20°50′15″E / 21.56944°N 20.8375°E | ||
| Ilumetsa | Põlva County | Estonia | 0.08 | 0.0066 0.0066 (<4600 BC)
|
[136][137] |
|
[ ⚑ ] 57°57′N 27°24′E / 57.95°N 27.4°E | |
| Ishim | Akmola region | Kazakhstan | 300 | 445 430-460
|
[138][139][140][note 1] | [ ⚑ ] 52°0′N 69°0′E / 52°N 69°E | ||
| Iturralde | Bolivia | Bolivia | 8.0 | 0.0205 0.011–0.030
|
[141] | ![]() |
[ ⚑ ] 12°35′S 67°40′W / 12.583°S 67.667°W | |
| Jackpine Creek magnetic anomaly | British Columbia | Canada | 25 | 120 120 ± 20
|
[142][143] | [ ⚑ ] 55°36′N 120°06′W / 55.6°N 120.1°W | ||
| Jalapasquillo | Puebla | Mexico | 1.2 | 10 <10
|
[144][145] | [ ⚑ ] 19°13′23″N 97°25′44″W / 19.2231°N 97.429°W | ||
| Jebel Hadid | Libya | Libya | 4.7 | 66 <66
|
[146][147] | [ ⚑ ] 20°52′12″N 22°42′18″E / 20.87°N 22.705°E | ||
| Jeptha Knob | Kentucky | United States | 4.3 | 425 | [148][note 1] | [ ⚑ ] 38°11′N 85°07′W / 38.183°N 85.117°W | ||
| Johnsonville | South Carolina | United States | 11 | 300 300?
|
[149][9][150][note 1] | [ ⚑ ] 33°49′N 79°22′W / 33.817°N 79.367°W | ||
| Jwaneng South | Botswana | Botswana | 1.3 | 66 <66
|
[151][152] | [ ⚑ ] 24°42′S 24°46′E / 24.7°S 24.767°E | ||
| Kamensk | Southern Federal District | Russia | 25 | 49 | Yes | 48°21′N 40°30′E | ||
| Kebira | Egypt | Egypt | 31 | 100 | [153][154] | ![]() |
[ ⚑ ] 24°40′N 24°58′E / 24.667°N 24.967°E | |
| Kilmichael | Mississippi | United States | 13 | 45 | [155][156][157][158] | [ ⚑ ] 33°30′N 89°33′W / 33.5°N 89.55°W | ||
| Krk | Croatia | Croatia | 12 | 40 | [159][160] | [ ⚑ ] 45°04′N 14°37′E / 45.06°N 14.62°E | ||
| Kurai Basin | Altai Region | Russia | 20 | 199 <200
|
[161][162] | [ ⚑ ] 50°12′N 87°54′E / 50.2°N 87.9°E | ||
| La Dulce | Argentina | Argentina | 2.8 | 0.445 0.445?
|
[163][114] | [ ⚑ ] 38°13′S 59°13′W / 38.21°S 59.21°W | ||
| Labynkyr | Russia | Russia | 67 | 150 150?
|
[164][9][165][166][note 1] | [ ⚑ ] 62°19′30″N 143°05′24″E / 62.325°N 143.090°E | ||
| Lac Iro | Chad | Chad | 13 | ? | [167][3][168] | ![]() |
[ ⚑ ] 10°10′N 19°40′E / 10.167°N 19.667°E | |
| Lairg Gravity Low | Scotland | Scotland | 40 | 1200 | [169] | 58°1′12″N, 4°24′0″W | ||
| Lake Cheko | Siberia | Russia | 50 | 0.0001 0.0001 (1908 AD)
|
[170] | [ ⚑ ] 60°57′50″N 101°51′36″E / 60.964°N 101.86°E | ||
| Lake Tai (Tai Hu) | Jiangsu | China | 70 70 ± 5
|
365 365 ± 5
|
[171][172][173] | [ ⚑ ] 31°14′N 120°8′E / 31.233°N 120.133°E | ||
| Loch Leven | Scotland | Scotland | 18 18x8
|
290 | [174][175] | [ ⚑ ] 56°12′N 3°23′W / 56.2°N 3.383°W | ||
| Lonar | Deccan Plateau, Southern India | India | 1.83 | 0.57 ± 0.05 | Yes | [176] | ||
| Lorne Basin | New South Wales | Australia | 30 | 250 250 ± 2
|
[177][178] | [ ⚑ ] 31°36′S 152°37′E / 31.60°S 152.62°E | ||
| Lycksele 2 | Sweden | Sweden | 130 | 1500 1500 ± 300
|
[179][180][181] | [ ⚑ ] 64°55′N 18°47′E / 64.92°N 18.78°E | ||
| Madagascar 3 | Madagascar | Madagascar | 12 | ? | [182][183] | [ ⚑ ] 18°50′20″S 46°13′16″E / 18.839°S 46.221°E | ||
| Magyarmecske anomaly | Hungary | Hungary | 7 | 299 | [184][185] | [ ⚑ ] 45°57′N 17°58′E / 45.95°N 17.97°E | ||
| Mahuika | New Zealand (offshore) | New Zealand | 20 20?
|
0.0006 0.0006 (1400 AD)
|
[186][187][67] | [ ⚑ ] 48°18′S 166°24′E / 48.3°S 166.4°E | ||
| Manicouagan | Quebec | Canada | 100 | 215.56 ± 0.05 | Yes | 51°23′N 68°42′W | ||
| Maniitsoq | Greenland | Greenland | 100 | 3000 | [188][189][190] | [ ⚑ ] 65°15′N 51°50′W / 65.25°N 51.833°W | ||
| Mejaouda (El Mrayer) | Mauritania | Mauritania | 3 | 540 <542?
|
[191][9][109][21][192] | [ ⚑ ] 22°43′19″N 7°18′43″W / 22.722°N 7.312°W | ||
| Merewether | Newfoundland | Canada | 20 | 0.0009 0.0009 (1100 AD)
|
[193][194][note 1] | [ ⚑ ] 58°02′N 64°03′W / 58.04°N 64.05°W | ||
| Meseta de la Barda Negra | Argentina | Argentina | 1.5 | 4 4 ± 1
|
[195][196] | [ ⚑ ] 39°10′S 69°53′W / 39.167°S 69.883°W | ||
| Middle-Urals Ring | Russia | Russia | 475 400–550
|
542 >542
|
[197][198][199] | [ ⚑ ] 56°N 56°E / 56°N 56°E | ||
| Mistassini-Otish | Quebec | Canada | 600 | 2200 | [200][201] | [ ⚑ ] 50°34′N 73°25′W / 50.57°N 73.42°W | ||
| Mount Ashmore dome | Indian Ocean (in Timor Sea) | 50 >50
|
35 | [202][203][204] | [ ⚑ ] 12°33′S 123°12′E / 12.55°S 123.2°E | |||
| Mousso | Chad | Chad | 3.8 | 540 <542
|
[205][206] | [ ⚑ ] 17°58′N 19°53′E / 17.967°N 19.883°E | ||
| Mt. Oikeyama | Japan | Japan | 90 | 0.03 0.030?
|
[207][208] | [ ⚑ ] 35°24′18″N 138°00′47″E / 35.405°N 138.013°E | ||
| Mulkarra | South Australia | Australia | 17 | 105 | [209][210] | [ ⚑ ] 27°51′S 138°55′E / 27.85°S 138.92°E | ||
| Nastapoka (Hudson Bay) arc | Quebec | Canada | 450 | 1800 1800?
|
[211][9][212][213] | ![]() |
[ ⚑ ] 57°00′N 78°50′W / 57°N 78.833°W | |
| Nadir | Atlantic Ocean (Guinea Plateau, West Africa) | ≥8.5 | 66 ± 0.8 | [214] | [ ⚑ ] 9°24′N 17°06′W / 9.4°N 17.1°W | |||
| Ouro Ndia | Mali | Mali | 3 | 2.6 <2.6
|
[215][9][21] | [ ⚑ ] 14°59.8′N 4°30.0′W / 14.9967°N 4.5°W | ||
| Pantasma | Nicaragua | Nicaragua | 10 | ? | [216] | [ ⚑ ] 13°22′N 85°57′W / 13.37°N 85.95°W | ||
| Panther Mountain | New York | United States | 10 | 375 | [217][218][219] | ![]() |
[ ⚑ ] 42°03′N 74°24′W / 42.05°N 74.4°W | |
| Peerless | Montana | United States | 6 | 470 470 ± 10
|
[220][221] | [ ⚑ ] 48°48′N 105°48′W / 48.8°N 105.8°W | ||
| Piratininga | Paraná | Brazil | 12 | 117 | [222][73][223] | [ ⚑ ] 22°28′S 49°09′W / 22.467°S 49.15°W | ||
| Popigai | Siberia | Siberia | 100 | 35.7±0.2 | Yes | 71°39′N 111°11′E | ||
| Praia Grande | Santos Basin, offshore | Brazil | 20 | 84 | [224][73][74] | [ ⚑ ] 25°39′S 45°37′W / 25.65°S 45.617°W | ||
| Ramgarh | Rajasthan | India | 3 | ? | [225][226][227][note 1] | [ ⚑ ] 25°20′16″N 76°37′29″E / 25.33778°N 76.62472°E | ||
| Ross | Antarctic Ocean (Ross Sea) | 600 600?
|
37 <38
|
[228][57][229] | [ ⚑ ] 77°30′S 178°30′E / 77.5°S 178.5°E | |||
| Rubielos de la Cérida | Spain | Spain | 80 80x40
|
35 30-40
|
[230][231][232][note 1] | ![]() |
[ ⚑ ] 40°46′59″N 1°15′00″W / 40.783°N 1.25°W | |
| Sakhalinka | Pacific Ocean (NW) | 12 | 70 | [233][234][235][236][237] | [ ⚑ ] 30°15′N 170°03′E / 30.25°N 170.05°E | |||
| São Miguel do Tapuio | Piauí | Brazil | 22 | 120 | [238][9][74][239][240][241] | [ ⚑ ] 5°37.6′S 41°23.3′W / 5.6267°S 41.3883°W | ||
| Shanghewan | Jilin | China | 30 | ? | [242][243][244] | [ ⚑ ] 44°29′N 126°11′E / 44.483°N 126.183°E | ||
| Shiva | Indian Ocean | 500 | 66 | [245] | [ ⚑ ] 18°40′N 70°14′E / 18.667°N 70.233°E | |||
| Shiyli | Kazakhstan | Kazakhstan | 5.5 | 46 46 ± 7
|
[246][247][note 1] | [ ⚑ ] 49°10′N 57°51′E / 49.167°N 57.85°E | ||
| Silverpit | Atlantic Ocean (North Sea) | 20 | 60 60 ± 15
|
[248][249][250][251][252][253][254][255] | ![]() |
[ ⚑ ] 54°14′N 1°51′E / 54.233°N 1.85°E | ||
| Sirente | Italy | Italy | 10 | 0.0017 0.0017 (320 ± 90 AD)
|
[256][257] | [ ⚑ ] 42°10′38″N 13°35′45″E / 42.17722°N 13.59583°E | ||
| Sithylemenkat Lake | Alaska | United States | 12 | 0.033 0.033?
|
[258][259][260][261] | [ ⚑ ] 66°07′34″N 151°23′20″W / 66.12611°N 151.38889°W | ||
| Smerdyacheye Lake | Russia | Russia | 20 | 0.02 0.01–0.03?
|
[262][263] |
|
[ ⚑ ] 55°44′06″N 39°49′23″E / 55.735°N 39.823°E | |
| Sudan 1 (Red Sea Hills) | Sudan | Sudan | 6 | ? | [264][265][266] | [ ⚑ ] 17°57.1′N 37°56.1′E / 17.9517°N 37.935°E | ||
| Sudan 2 (Bayuda) | Sudan | Sudan | 10 | ? | [267][268][269] | ![]() Mahas Bayuda Red Sea Hills |
[ ⚑ ] 18°03.5′N 33°30.2′E / 18.0583°N 33.5033°E | |
| Sudan 3 (Mahas) | Sudan | Sudan | 2.8 | ? | [ ⚑ ] 20°01.9′N 30°13.7′E / 20.0317°N 30.2283°E | |||
| Sudbury | Ontario | Canada | 130 | 1849 | Yes | 46°36′N 81°11′W | ||
| Svetloyar Lake | Russia | Russia | 40 | 0.0026 0.0026 (600 BC)
|
[270][271][note 1] |
|
[ ⚑ ] 56°49′08″N 45°05′35″E / 56.819°N 45.093°E | |
| Takamatsu | Japan | Japan | 6 4-8
|
15 | [272][273][274][275][276] | [ ⚑ ] 34°18′N 134°03′E / 34.3°N 134.05°E | ||
| Tarek (Gilf Kebir) | Egypt | Egypt | 2.1 | 112 112?
|
[277][9][278][279] | [ ⚑ ] 24°36′04″N 27°12′18″E / 24.601°N 27.205°E | ||
| Tatarsky North | Pacific Ocean (NW) | 14 | ? | [280][281] | [ ⚑ ] 49°57′35″N 141°23′40″E / 49.95972°N 141.39444°E | |||
| Tatarsky South | Pacific Ocean (NW) | 20 | ? | [282][281] | [ ⚑ ] 48°17′38″N 141°23′40″E / 48.29389°N 141.39444°E | |||
| Tefé River | Amazonas | Brazil | 15 | 65 65 ± 20
|
[283][74][284] | [ ⚑ ] 4°57′S 66°03′W / 4.95°S 66.05°W | ||
| Talundilly | Queensland | Australia | 84 | 128 128 ± 5
|
[285][286][287] | [ ⚑ ] 24°44′S 144°37′E / 24.73°S 144.62°E | ||
| Temimichat | Mauritania | Mauritania | 0.7 | 2 2?
|
[288][9][289] | [ ⚑ ] 24°15′N 9°39′W / 24.25°N 9.65°W | ||
| Tsenkher | Mongolia | Mongolia | 3.6 | 5 | [290][291][292] | [ ⚑ ] 43°38′41″N 98°22′09″E / 43.64472°N 98.36917°E | ||
| Toms Canyon | New Jersey | United States | 22 | 35 | [293][294][295][296] | [ ⚑ ] 39°08′N 72°51′W / 39.133°N 72.85°W | ||
| Kara | Nenetsia, offshore | Russia | 65 | 70.3 70.3 ± 2.2
|
Yes | [297][298] | ![]() |
[ ⚑ ] 69°17′N 65°21′E / 69.28°N 65.35°E |
| Vélingara | Senegal | Senegal | 48 | 31.5 23-40
|
[299][300] | ![]() |
[ ⚑ ] 13°02′N 14°08′W / 13.033°N 14.133°W | |
| Versailles | Kentucky | United States | 1.5 | 400 <400
|
[301][302] | [ ⚑ ] 38°05′N 84°40′W / 38.09°N 84.67°W | ||
| Vredefort | Free State | South Africa | 180-300 | 2023 | Yes | [303] | 27°0′S 27°30′E | |
| Vichada | Vichada | Colombia | 50 | 30 30?
|
[304][9] | ![]() |
[ ⚑ ] 4°30′N 69°15′W / 4.5°N 69.25°W | |
| Victoria Island | California | United States | 5.5 | 43 37-49
|
[305] | [ ⚑ ] 37°53′N 121°32′W / 37.89°N 121.53°W | ||
| Warburton East | South Australia | Australia | 200 | 330 300-360
|
[306][307][308] | [ ⚑ ] 28°00′S 140°30′E / 28°S 140.5°E | ||
| Warburton West | South Australia | Australia | 200 | 330 300-360
|
[306][307][309] | |||
| Weaubleau (Weaubleau-Osceola) | Missouri | United States | 19 | 330 330 ± 10
|
[310][311][312] | ![]() |
[ ⚑ ] 38°00′N 93°36′W / 38.0°N 93.6°W | |
| Wembo-Nyama (Omeonga) | DR Congo | DR Congo | 41 36-46
|
60 60?
|
[313][314][315] | [ ⚑ ] 3°37′52″S 24°31′07″E / 3.63111°S 24.51861°E | ||
| Wilkes Land 2 | Antarctica | 480 | 375 250-500
|
[316] | ![]() |
[ ⚑ ] 70°S 140°E / 70°S 140°E | ||
| Wolfe Creek | Great Sandy Desert, Western Australia | Australia | 0.87 | < 0.3 | Yes | |||
| Woodbury | Georgia | United States | 7 | 500 500 ± 100
|
[317][318][319][320] | [ ⚑ ] 32°55′N 84°33′W / 32.92°N 84.55°W | ||
| Yallalie | Western Australia | Australia | 12 | 99 99?
|
[321][9][322][323][324][325][note 1] | [ ⚑ ] 30°26′40″S 115°46′16″E / 30.44444°S 115.77111°E | ||
| Zerelia West | Greece | Greece | 20 | 0.007 0.0070 (5000 BC)
|
[326][327] | [ ⚑ ] 39°09′48″N 22°42′32″E / 39.16333°N 22.70889°E | ||
| Zerelia East | Greece | Greece | 10 | 0.007 0.0070 (5000 BC)
|
[326][327] | [ ⚑ ] 39°09′43″N 22°42′51″E / 39.16194°N 22.71417°E |
Russia's Lake Cheko is thought by one research group to be the result of the famous Tunguska event, although sediments in the lake have been dated back more than 5,000 years. There is highly speculative conjecture about the supposed Sirente impact (c. 320 ± 90 AD) having caused the Roman emperor Constantine's vision at Milvian Bridge.[328][better source needed]
The Burckle crater and Umm al Binni structure are proposed to be behind the floods that affected Sumerian civilization.[329][330] The Kachchh impact may have been witnessed by the Harappan civilization and mentioned as a fireball in Sanskrit texts.[331]
Shortly after the Hiawatha Crater was discovered, researchers suggested that the impact could have occurred as late as ~12,800 years ago, leading some to associate it with the controversial Younger Dryas impact hypothesis (YDIH).[332] James Kennett, a leading advocate of the YDIH said, "I'd unequivocally predict that this crater is the same age as the Younger Dryas."[333]
These claims were criticised by other scholars. According to impact physicist Mark Boslough writing for Skeptical Inquirer the first reports of the impact released by science journalist Paul Voosen focused on this being a young crater which according to Boslough "set the tone for virtually all the media reporting to follow". Boslough argued, based on evidence and statistical probability, that once the crater has been drilled and researched "it will turn out to be much older." He complained that this important discovery "was tainted by connections to a widely discredited hypothesis and speculations that did not make it through peer review".[333][334] The YDIH has since been refuted comprehensively by a team of earth scientists and impact experts.[335]
A 2022 study using Argon–Argon dating of shocked zircon crystals in impact melt rocks found outwash less than 10 km downstream of the glacier pushed the estimate back to around 57.99 ± 0.54 million years ago, during the late Paleocene.[336][125] Confirmation would require drilling almost one km (3,300 ft) through the ice sheet above the crater to obtain a sample of dateable, solidified impact melt from the crater.
The age of the Bloody Creek crater[337] is uncertain.
As the trend in the Earth Impact Database for about 26 confirmed craters younger than a million years old shows that almost all are less than two km (1.2 mi) in diameter (except the three km (1.9 mi) Agoudal and four km (2.5 mi) Rio Cuarto), the suggestion that two large craters, Mahuika (20 km (12 mi)) and Burckle (30 km (19 mi)), formed only within the last few millennia has been met with skepticism.[338][339][340] However, the source of the young (less than a million years old) and enormous Australasian strewnfield (c. 790 ka) is suggested to be a crater about 100 km (62 mi) across somewhere in Indochina,[341][342] with Hartung and Koeberl (1994) proposing the elongated 100 km × 35 km (62 mi × 22 mi) Tonlé Sap lake in Cambodia (visible in the map at the side) as a suspect structure.[343]
The Decorah crater has been conjectured as being part of the Ordovician meteor event.[344][better source needed]
Several twin impacts have been proposed, such as the Rubielos de la Cérida and Azuara (30–40 Ma),[345] Cerro Jarau and Piratininga (c. 117 Ma),[73] and Warburton East and West (300–360 Ma).[346] However, adjacent craters may not necessarily have formed at the same time, as demonstrated by the case of the confirmed Clearwater East and West lakes.
Some confirmed impacts like Sudbury or Chicxulub are also sources of magnetic anomalies[347] and/or gravity anomalies. The magnetic anomalies Bangui and Jackpine Creek,[143] the gravity anomalies Wilkes Land crater and Falkland Islands,[348] and others have been considered as being of impact origin. Bangui apparently has been discredited,[25][349] but appears again in a 2014 table of unconfirmed structures in Africa by Reimold and Koeberl.[3]
Several anomalies in Williston Basin were identified by Swatzky in the 1970s as astroblemes including Viewfield, Red Wing Creek, Eagle Butte, Dumas, and Hartney, of which only the last two are unconfirmed.[92]
The Eltanin impact has been confirmed (via an iridium anomaly and meteoritic material from ocean cores) but, as it fell into the Pacific Ocean, apparently no crater was formed. The age of Silverpit and the confirmed Boltysh crater (65.17 ± 0.64 Ma), as well as their latitude, has led to the speculative hypothesis that there may have been several impacts during the KT boundary.[350][351] Of the five oceans in descending order by area, namely the Pacific, Atlantic, Indian, Antarctic, and Arctic, only the smallest (the Arctic) does not yet have a proposed unconfirmed impact crater.
Craters larger than 100 kilometres (62 mi) in the Phanerozoic (after 541 Ma) are notable for their size as well as for the possible coeval events associated with them especially the major extinction events.
For example, the Ishim impact structure[139] is conjectured to be bounded by the late Ordovician-early Silurian (c. 445 ± 5 Ma),[140] the two Warburton basins have been linked to the Late Devonian extinction (c. 360 Ma),[308] both Bedout and the Wilkes Land crater have been associated with the severe Permian–Triassic extinction event (c. 252 Ma),[352][353] Manicouagan (c. 215 Ma) was once thought to be connected to the Triassic–Jurassic extinction event (c. 201 Ma)[354] but more recent dating has made it unlikely, while the consensus is the Chicxulub impact caused the one for Cretaceous–Paleogene (c. 66 Ma).
However, other extinction theories employ coeval periods of massive volcanism such as the Siberian Traps (Permian-Triassic) and Deccan Traps (Cretaceous-Paleogene).
There is geological evidence for impact events having taken place on Earth on certain specific occasions, which should have formed craters, but for which no impact craters have been found. In some cases this is because of erosion and Earth's crust having been recycled through plate tectonics, in others likely because exploration of the Earth's surface is incomplete, or because no actual crater was formed because the impacting object exploded as a cosmic air burst. Typically the ages are already known and the diameters can be estimated.
| Parent crater of | Expected crater diameter | Age | Notes |
|---|---|---|---|
| Pica glass | Unknown | 12 ka | [355] |
| Libyan desert glass | Unknown | 29 Ma | [356][357][358][359] |
| Dakhleh glass | 0.4 km | 150 ka | [360][361] |
| Argentinian impact glasses | Unknown | 6, 114, and 445 ka;
5.3 and 9.2 Ma |
journal=Earth and Planetary Science Letters|volume=219|issue=3–4|pages=221–238|doi= 10.1016/S0012-821X(04)00010-X|year=2004|bibcode=2004E&PSL.219..221S }}</ref>[362] |
| Australasian tektites | 32–114 km | 780 ka | [342] |
| Central American tektites | 14 km | 820 ka | [363][364][365] |
| Skye ejecta deposits | Unknown | 60 Ma | [366] |
| Stac Fada Member | 40 km | 1.2 Ga | [367][368][369] |
| Barberton Greenstone Belt spherules | 500 km | 3.2 Ga | [370][371] |
| Marble Bar impact spherules | "hundreds of kilometers" | 3.4 Ga | [372] |
Some geological processes can result in circular or near-circular features that may be mistaken for impact craters. Some examples are calderas, maars, sinkholes, glacial cirques, igneous intrusions, ring dikes, salt domes, geologic domes, ventifacts, tuff rings, forest rings, and others. Conversely, an impact crater may originally be thought as one of these geological features, like Meteor Crater (as a maar) or Upheaval Dome (as a salt dome).
The presence of shock metamorphism and shatter cones are important criteria in favor of an impact interpretation, though massive landslides (such as the Köfels landslide of 7800 BC which was once thought to be impact-related) may produce shock-like fused rocks called "frictionite".[373]

Crater Lake, Oregon (a caldera)

Three maars in Germany

Great Blue Hole, Belize (a sinkhole)

Verdi Lake (a glacial cirque)

Kondyor Massif or Konder (an igneous intrusion)[374]

Salt domes on Melville Island

The Richat structure (a geologic dome)[375]

The Arkenu structures (a pair of ring dikes)

Brukkaros Mountain (a tuff ring)

A forest ring in Ontario
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Categories: [Lists of impact craters on Earth] [Possible impact craters on Earth]