by: Charles O’Dale
| Name | Diameter (km) | Age (megayears) | Dating method | Morphological type | Notes | |
|---|---|---|---|---|---|---|
| Barringer, Arizona | 1.19 | 0.049 ± 0.003 | Radioactive decay | CONFIRMED Simple | Jointed | |
| Bear Swamp, New York | 3.5 | ~444 | Geological dating | PROBABLE Simple | No surface expression | |
| Beaverhead, Montana/Idaho | ~100 | ~600 | K-Ar, 40Ar/39Ar and Rb-Sr | CONFIRMED Peak ring | Allochthonous | |
| Bloody Creek, Nova Scotia | 0.350 X 0.420 | ~0.012 | Geological dating | PROBABLE Simple | Elliptical basin | |
| Bow City, Alberta | 6 | <75 | Geological dating | PROPOSED Complex | No surface expression | |
| Brent, Ontario | 3.8 | 396 ± 20 | K-Ar studies on the coarsely crystalline melt rocks | CONFIRMED Simple | Overflight of Brent Crater | |
| Calvin, Michigan | 7.24 | 450 ± 10 | Geological dating | CONFIRMED Complex | ||
| Can-Am, Lake Huron | 100 | ~500 | Geological dating | PROBABLE Complex | Underwater in Lake Huron | |
| Carolina Bays, NC | Various | ~0.0129-0.14 | Not firmly quantified | PROPOSED Simple | Younger Drias black mat | |
| Carswell,, Saskatchewan | 39 | 115 ± 10 | 40Ar/39Ar | CONFIRMED Peak ring | Multi-ring impact? | |
| Charity Shoal, Lake Ontario | ~1 | ? | PROPOSED Simple underwater Lake Ontario | Negative magnetic anomaly | ||
| Charlevoix, Quebec | 54 | 342 ± 15 | K-Ar | CONFIRMED Peak ring | Elevated Earthquake Zone | |
| Charron Lake, Manitoba | >4.5 | ? | PROPOSED Simple | Negative magnetic anomaly | ||
| Chesapeake, Virginia | ~85 | 33.99 ± 0.71 | Geological dating | CONFIRMED Complex | Coesite in suevites | |
| Chicxulub, Yucatan, Mexico | 150 | 66.043 ±0.011 | 40Ar/39Ar | CONFIRMED Peak ring basin | Cretaceous-Paleogene | |
| Clearwater East, Quebec | 26 | ~460–470 | Rb-Sr melt rocks | CONFIRMED Complex | Chondrite-type | |
| Clearwater West, Quebec | 32 | 290 ± 20 | K-Ar melt rocks | CONFIRMED Peak ring | Maskelynite | |
| Cloud Creek, Wyoming | 7 | ~190 ± 30 | Geological dating | CONFIRMED Complex | Chronostratigraphic | |
| Corossol Structure, Gulf of St. Lawrence | 4.0 | ~0.012 | 14C age shells in sediments | PROPOSED Complex | Underwater Gulf St. Lawrence | |
| Crooked Creek, Missouri | ~7 | ~348 – 323 | Geological dating | CONFIRMED Complex | Serial impact event? | |
| Decaturville Structure, Missouri | 5.5 | 260-323 | Geological dating | CONFIRMED Complex | ||
| Deep Bay, Saskatchewan | 9.5 | 99 ± 4 | Geological dating | CONFIRMED Simple Flat-floored | Cretaceous sediments | |
| Des Plaines, Illinois | 8 | <280 | Geological dating | CONFIRMED Complex | ||
| Douglas Wyoming | ~0.08 | ~280 | Sedimentological boundary | PROPOSED Simple | Multiple Strewn Field | |
| Dumas, Saskatchewan | 4 | <70 | Geological dating | PROBABLE Simple | Seismic and borehole data | |
| Eagle Butte, Alberta | 10 | <65 | Geological dating | CONFIRMED Complex | Shatter-coned Cretaceous rocks | |
| Eclipse Lake, Labrador small | ~1.5 | ? | IMPROBABLE Simple – Possible flat-floored | Two possible structures | ||
| Eclipse Lake, Labrador large | ~6 | ? | IMPROBABLE Complex | Two possible structures | ||
| Elbow, Saskatchewan | 8 | 395 ± 25 | Geological dating | CONFIRMED Complex | Brecciated Devonian strata | |
| Flynn Creek, Tennessee | ~3.8 | 382.03 ± 21 | Geological dating | CONFIRMED Complex | Shattercones | |
| Franktown structure, Ontario | ~2 | >400 | Ordovician sediment cover | PROPOSED Simple | Circular depression | |
| Glasford, Illinois | ~4 | 455 ± 2 | Geological dating | CONFIRMED Complex | Shattercones, shock metamorphism | |
| Glover Bluff, Wisconsin | 8 | <500 | Geological dating | CONFIRMED Complex | ||
| Gow, Saskatchewan | 5 | <250 | Radioactive decay | CONFIRMED Transitional | A transitional form between a simple bowl-shaped crater and a complex crater with a central uplift. | |
| Hartney, Manitoba | 6 | <190 ± 20 | Geological dating | PROBABLE Complex? | Structurally uplifted centre | |
| Haviland, Kansas | 0.01 | 0.02 ±0.002 | Geological dating | CONFIRMED Simple | Brenham meteorite | |
| Hiawatha, Greenland | 31 | 2.5 – 0.0117 | Geological dating | CONFIRMED Complex | Younger Drias Extinction | |
| High Rock Lake, Manitoba | ~5 | 435 ± 10 | Geological dating | PROBABLE Complex | ||
| Holleford, Ontario | 2.35 | 550 ±100 | Geological dating | CONFIRMED Simple | Overflight of Holleford Crater | |
| Hotchkiss Structure, Alberta | 3.9 | 120-330 | Dated unconformity | PROPOSED Complex | Seismic research | |
| Howell Creek, BC | ~10 | 90-97 | Between syenites and Cardium sands | IMPROBABLE Simple | Circular geologic formation | |
| Hudson Bay Arc | >450 | ? | IMPROBABLE No “crater” depth indication |
No impact metamorphism found | ||
| Ile Rouleau, Quebec | 4 | <300 | Geological dating | CONFIRMED Complex | Age based on stratigraphy | |
| James River, Alberta | 4.8 | <480 | Geological dating | PROBABLE Complex | No surface expression | |
| Jocko, Ontario | >0.2 | <0.012 | Created in glacial remains | IMPROBABLE Simple | Ground Exploration Video | |
| Kakiattukallak Lake, Quebec | 3 – 6 | ? | PROPOSED Simple | Possible Multiple Impact? | ||
| Kentland, Indiana | ~13 | >97 | Geological dating | CONFIRMED Complex | Quarry | |
| Lac Couture, Quebec | 8 | 425 ± 25 | Ar40-Ar39 melt rock | CONFIRMED Complex | Submerged central peak | |
| Lac de Courval, Quebec | ~1.6 | ? | PROPOSED Simple | Circular lake | ||
| Lac du Bonnet, Manitoba | ~3.8 | 75 | Sedimentary cover depth | PROPOSED Simple | Circular magnetic anomaly | |
| Lac La Moinerie, Quebec | 8 | 400 ± 50 | Ar40-Ar39 melt rock | CONFIRMED Complex | ||
| Lac La Moinerie (north), Quebec | 1.8 | ? | IMPROBABLE Simple | Circular structure | ||
| Manicouagan, Quebec | 100 | 214 ± 1 | Zircon/melt rock dating | CONFIRMED Peak ring basin | Maskelynite | |
| Manson, Iowa | ~35 | 73.8 | Ar40-Ar39 melt rock | CONFIRMED Central peak | No surface evidence | |
| Maple Creek, Saskatchewan | 6 | <75 | Geological & radioactive decay dating | CONFIRMED Complex | Disrupts Late Cretaceous rocks | |
| Merewether, Labrador | 0.19812 (largest of three) | 0.00087? | Sediment depth | IMPROBABLE Simple | Possible methane explosion | |
| Miami Florida Crater/Structure | ~1 | ~140 | After Florida Plateau deposition | IMPROBABLE Solutional doline |
Underwater off Miami | |
| Middlesboro, Kentucky | 6 | <300 | Geological dating | CONFIRMED Complex | Dates to the formation of the supercontinent Pangaea 300 million years ago | |
| Mistastin, Labrador | 28 | 36.6 ± 2 | Ar40-Ar39 melt rock | CONFIRMED Central peak basin | Maskelynite | |
| Montagnais, off Nova Scotia | 45 | 50.5 ± 0.76 | K-Ar, 40Ar/39Ar and Rb-Sr | CONFIRMED Complex | Submerged south of Nova Scotia, Canada | |
| Newporte, North Dakota | 3.2 | <500 | Geological biostratigraphic dating | CONFIRMED Simple | No surface evidence | |
| Nicholson Lake, North West Territories | 12.5 | 389 ± 6.7 | Pb/U | CONFIRMED Complex | The large island within the lake is the eroded central peak | |
| Panther Mountain, New York state | 10 | ~375 | Geological dating | PROBABLE Complex | Inverted relief | |
| Parry Peninsula, NWT | 160 | <65 | K/T boundary timeframe | IMPROBABLE Complex | ||
| Paterson, NW Greenland | 36.5 | YEARS >105to >108 |
Geological | PROBABLE Complex | Under 2 km of ice | |
| Pilot Lake, North West Territories | 6 | 445 ± 2 | K-Ar, 40Ar/39Ar and Rb-Sr | CONFIRMED Complex | Dating based on one sample | |
| Pingualuit, Quebec | 3.44 | 1.4 ± 0.1 | Ar40-Ar39 melt rock | CONFIRMED Simple | Overflight of Pingualuit Crater | |
| Plevna/Tomvale Structure, ONTARIO | ~0.01 | <12,000 Years | Created in glacial remains | IMPROBABLE Simple | ||
| Presqu’ile, Quebec | 24 | <500 | Geological dating | CONFIRMED Complex | High level erosion | |
| Purple Springs, Alberta | 6 | <75 | Geological dating | PROBABLE Complex | No surface expression | |
| Red Wing, North Dakota | 9.1 | 200 ± 25 | Geological dating | CONFIRMED Complex? | Stratigraphy | |
| Rock Elm, Wisconsin | 6 | 420–440 | Geological dating | CONFIRMED Complex | Youngest exposed rocks | |
| Skeleton Lake, Ontario | 3.5 | ~800 | Geological dating | PROBABLE Simple | ||
| Slate Islands, Lake Superior | 32 | 436 ± 3 | Ar40-Ar39 melt rock | CONFIRMED Complex | Pseudotachylite dating | |
| Stac Fada, Scotland | 40 | 1177 ± 5 | 40Ar/39Ar dating of authigenic K-feldspars | PROPOSED Complex | Buried beneath the Moine Thrust complex |
|
| Steen River Albera | 25 | 91 ± 7 | K-Ar pyroclastic vesicular rock | CONFIRMED Complex | Magnesioferrite MgFe2O4 | |
| St. Martin, Manitoba | ~40 | 227.8 ±0.9 | Ar40-Ar39 melt rock | CONFIRMED Complex | Maskelynite – Dauphin River diversion? | |
| Sudbury, Ontario | 250 | 1852 +4/-3 | U-Pb zircon | CONFIRMED Multi ring? | Sudbury Distal Ejecta | |
| Touchwood Hills, Saskatchewan | >200 | >541 | Post Williston Basin deposit | IMPROBABLE Multi-ring Basin? | ||
| Upheaval Dome, Utah | 2.57 | <170 | Geological dating | PROPOSED | Younger than the Jurassic Navajo Sandstone | |
| Victoria Island, California | 5.5 | 37-49 | Drilling data | PROPOSED Simple | Geological dating | |
| Viewfield, Saskatchewan | 2.5 | 190 ± 20 | Geological dating | CONFIRMED Simple | Jurassic-Triasic post-impact deposit | |
| Wanapitei, Ontario | 3 to 7.5 | 37.2 ± 1.2 | K/Ar, Ar40-Ar39 melt rock | CONFIRMED Simple – Possible flat-floored? | Maskelynite – L or LL chondrite projectile | |
| Weaubleau, Missouri | 19 | 320 – 340 | Geological dating | PROBABLE Complex | Ring-like drainages | |
| Wells Creek, Tennessee | ~12 | 200 ± 100 | Geological dating | CONFIRMED Complex | Shattercones | |
| West Hawk, Manitoba | 2.44 | 100 | Geological dating | CONFIRMED Simple | No reliable age | |
| Whitecourt, Alberta | 0.036 | 0.00113 | 14C dating of charcoal | CONFIRMED Simple | Medium octahedrite (Om) IIIAB |
