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Earth Impact Database Sorted by : | Age | Diameter | Name |

North America

 

Crater Name
Location
Latitude
Longitude
Diameter (km)
Age (Ma)*
Exposed
Drilled
Target Rock**
Bolide Type***
Oklahoma, U.S.A.
N 36° 15'
W 98° 12'
16
470 ± 30
N
Y
M
-
Alaska, U.S.A.
N 71° 15'
W 156° 38'
12
3-95
N
Y
S
-
Arizona, U.S.A.
N 35° 2'
W 111° 1'
1.18
0.049 ± 0.003
Y
Y
S
IAB
Montana, U.S.A.
N 44° 36'
W 113° 0'
60
~ 600
Y
N
M
-
Ontario, Canada
N 46° 5'
W 78° 29'
3.8
>453 Ma
N
Y
C
Chondrite
Michigan, USA
N 41° 50'
W 85° 57'
8.5
450 ± 10
N
Y
S
-
Saskatchewan, Canada
N 58° 27'
W 109° 30'
39
115 ± 10
Y
Y
M
-
Quebec, Canada
N 47° 32'
W 70° 18'
54
342 ± 15*
Y
Y
M
-
Virginia, U.S.A.
N 37° 17'
W 76° 1'
40****
35.5 ± 0.3
N
Y
M
-
Yucatan, Mexico
N 21° 20'
W 89° 30'
150****
64.98 ± 0.05
N
Y
M
Chondrite
Quebec, Canada
N 56° 5'
W 74° 7'
26
290 ± 20
Y
Y
M
Chondrite
Quebec, Canada
N 56° 13'
W 74° 30'
36
290 ± 20
Y
Y
M
-
Wyoming, USA
N 43° 7'
W 106° 45'
7
190 ± 30
N
Y
S
-
Quebec, Canada
N 60° 8'
W 75° 20'
8
430 ± 25
Y
N
C
-
Missouri, U.S.A.
N 37° 50'
W 91° 23'
7
320 ± 80
Y
N
S
-
Missouri, U.S.A.
N 37° 54'
W 92° 43'
6
< 300
Y
Y
M
-
Saskatchewan, Canada
N 56° 24'
W 102° 59'
13
99 ± 4
N
Y
C
-
Illinois, U.S.A.
N 42° 3'
W 87° 52'
8
< 280
N
Y
S
-
Alberta, Canada
N 49° 42'
W 110° 30'
10
< 65
N
Y
S
-
Saskatchewan, Canada
N 50° 59'
W 106° 43'
8
395 ± 25
N
Y
S
-
Tennessee, U.S.A.
N 36° 17'
W 85° 40'
3.8
360 ± 20
Y
Y
S
-
Illinois, U.S.A.
N 40° 36'
W 89° 47'
4
< 430
N
Y
S
-
Wisconsin, U.S.A.
N 43° 58'
W 89° 32'
8
< 500
Y
Y
S
-
Saskatchewan, Canada
N 56° 27'
W 104° 29'
5
< 250
Y
N
C
Iron?
Nunavut, Canada
N 75° 22'
W 89° 41'
23
39
Y
N
S
-
Kansas, U.S.A.
N 37° 35'
W 99° 10'
0.01
< 0.001
Y
N
S
Pallasite
Ontario, Canada
N 44° 28'
W 76° 38'
2.35
550 ± 100
N
Y
C
-
Quebec, Canada
N 50° 41'
W 73° 53'
4
< 300
Y
N
S
-
Indiana, U.S.A.
N 40° 45'
W 87° 24'
13
< 97
Y
Y
S
-
Quebec, Canada
N 57° 26'
W 66° 37'
8
400 ± 50
Y
N
C
-
Quebec, Canada
N 51° 23'
W 68° 42'
85****
214 ± 1
Y
Y
M
-
Iowa, U.S.A.
N 42° 35'
W 94° 33'
35
73.8 ± 0.3
N
Y
M
Chondrite
Saskatchewan, Canada
N 49° 48'
W 109° 6'
6
< 75
N
Y
S
-
Texas, U.S.A.
N 31° 17'
W 96° 18'
12.7
58 ± 2
N
Y
S
-
Kentucky, U.S.A.
N 36° 37'
W 83° 44'
6
< 300
Y
Y
S
-
Newfoundland/Labrador, Canada
N 55° 53'
W 63° 18'
28
36.4 ± 4
Y
N
C
Iron?
Nova Scotia, Canada
N 42° 53'
W 64° 13'
45
50.50 ± 0.76
N
Y
S
-
North Dakota, U.S.A.
N 48° 58'
W 101° 58'
3.2
< 500
N
Y
M
-
Quebec, Canada
N 61° 17'
W 73° 40'
3.44
1.4 ± 0.1
Y
N
C
Chondrite (L?)
NWT, Canada
N 62° 40'
W 102° 41'
12.5
< 400
N
N
M
Achondrite
Texas, U.S.A.
N 31° 45'
W 102° 29'
0.16
< 0.0635
Y
Y
S
IAB
NWT, Canada
N 60° 17'
W 111° 1'
6
445 ± 2
Y
N
C
-
Quebec, Canada
N 49° 43'
W 74° 48'
24
< 500
Y
N
C
-
North Dakota, U.S.A.
N 47° 36'
W 103° 33'
9
200 ± 25
N
Y
S
-
Wisconsin, U.S.A.
N 44° 43'
W 92° 14'
6
< 505
-
-
S
-
Manitoba, Canada
N 51° 47'
W 98° 32'
40
220 ± 32
N
Y
M
-
New Mexico , U.S.A.
N 35° 45'
W 105° 56'
6-13
<1200
N
N
M
-
Ohio, U.S.A.
N 39° 2'
W 83° 24'
8
< 320
Y
Y
S
-
Texas, U.S.A.
N 30° 36'
W 102° 55'
13
< 100
Y
Y
S
-
Ontario, Canada
N 48° 40'
W 87° 0'
30
~ 450
Y
N
C
-
Alberta, Canada
N 59° 30'
W 117° 38'
25
91± 7*
N
Y
M
-
Ontario, Canada
N 46° 36'
W 81° 11'
130****
1850 ± 3
Y
Y
C
-
Utah, U.S.A.
N 38° 26'
W 109° 54'
10
< 170
Y
Y
S
-
Victoria Island, Arctic Canada
N 72° 28'
W 113° 58'

~ 25

>130, <450
Y
N
S
-
Saskatchewan, Canada
N 49° 35'
W 103° 4'
2.5
190 ± 20
N
Y
S
-
Ontario, Canada
N 46° 45'
W 80° 45'
7.5
37.2 ± 1.2
N
N
C
Chondrite
Tennessee, U.S.A.
N 36° 23'
W 87° 40'
12
200 ± 100
Y
Y
S
-
Manitoba, Canada
N 49° 46'
W 95° 11'
2.44
351± 20
N
Y
C
-
Alabama, U.S.A.
N 32° 31'
W 86° 10'
6.5
81.0 ± 1.5
Y
Y
M
Chondrite?
Alberta, Canada
N 54° 00'
W 115° 36'
0.04
<0.0011
Y
N
S
IIIAB iron
 

* pre-1977 K-Ar, Ar-Ar and Rb-Sr ages recalculated using the decay constants of Steiger and Jager (1977) Ages in millions of years (Ma) before present.

** Abbreviations: C - Crystalline Target; C-Ms - Metasedimentary Target; M - Mixed Target (i.e.sedimentary strata overlying crystalline basement); S - sedimentary target (i.e. no crystalline rocks affected by the impact event). From Osinski. G. R., Spray J. G., and Grieve R. A. F. 2007. Impact melting in sedimentary target rocks: A synthesis. In The Sedimentary Record of Meteorite Impacts, Geological Society of America Special Paper. Editors: Evans K. Horton W., King D., Morrow J., and Warme J. Geological Society of America: Boulder, in press.

***
From Koeberl,C. Identification of meteoritic components in impactites. 1998, Koeberl, C. The Geochemistry and Cosmochemistry of Impacts. 2007 and PASSC Files. (IAB, IIIAB, IIIB, IIID - Iron Meteorite)

****This revised diameter is the best estimate for the collapsed transient crater diameter (rim-to-rim dimension). Our previous diameters cited maximum damage diameter estimates. There is considerable confusion in the literature regarding the definition of "diameter". In the Earth Impact Database, we are striving to cite the collapsed transient crater value where possible. This can affect the order of size: for example, Sudbury's maximum damage diameter is ~260 km (as defined by the outermost ring diameter), while that of Chicxulub is ~240 km. However, the rim-to-rim diameter of Sudbury is less than that of Chicxulub's (130 versus 150 km, respectively).

 

 

 

PASSC Director: John Spray
Data Manager: Beverley Elliott

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