NEW!

RESEARCH OPPORTUNITIES

Earth Impact
Database

Impact Structure Materials

Regional Planetary Image Facility

Meetings

Outreach Program

Related Sites

Research

Meteorites

PASSC News

Missions


| Africa | Asia | Australia | Europe | North America | South America |

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

Impact Structures listed by Age (Increasing)

Current total number of confirmed impact structures: 176

To view list of decreasing ages click here.

Structure Name
Age (Ma)*
0.000063
0.00014
< 0.001
< 0.001
Whitecourt
<0.0011
< 0.004
0.004 ± 0.001
.0042 ± 0.0019
Ilumetsä
~ 0.0066
< 0.007
< 0.01
0.0214 ± 0.0097
0.049 ± 0.003
< 0.05

0.052 ± 0.006
.0540 ± 0.0015
< 0.1
< 0.1
0.220 ± 0.052
0.250 ± 0.050
~ 0.27
< 0.3
0.9 ± 0.1
< 1
< 1
1.07
1.4 ± 0.1
< 3
3.0 ± 0.3
3.5 ± 0.5
3.7 ± 0.3
< 5
5 ± 1
5 ± 3
Steinheim
15 ± 1
15.1 ± 0.1
35.3 ± 0.1
35.7 ± 0.2
> 35
> 35
36.4 ± 4
37.2 ± 1.2
39
40 ± 20
Beyenchime-Salaatin
40 ± 20
42.3 ± 1.1
45 ± 10
46 ± 3
46 ± 7
49.0 ± 0.2
49.0 ± 0.2
< 50
50.50 ± 0.76
Jebel Waqf as Suwwan
56 - 37
58 ± 2
< 60
64.98 ± 0.05
Vista Alegre
< 65
< 65
65.17 ± 0.64
< 70
< 70
Ouarkziz
< 70
< 70
70.3 ± 2.2
73.3 ± 5.3
74.1± 0.1
80 ± 20
81.0 ± 1.5
89.0 ± 2.7
91 ± 7
3 - 95
< 97
Deep Bay
99 ± 4
< 100
< 110
115 ± 10
< 120
< 120
120 ± 10
121.0 ± 2.3
128 ± 5
142.0 ± 2.6
142.5 ± 0.8
145.0 ± 0.8
150 ± 20
150 ± 70
> 160 ± 10
Zapadnaya
165 ± 5
167 ± 3
169 ± 7
< 170
< 180
190 ± 20
190 ± 30
< 200
200 ± 25
200 ± 100
214 ± 1
214 ± 8
220 ± 32
~ 230
244.4 ± 3.25
< 250
250 ± 80
< 280
280 ± 10
290 ± 20
290 ± 20
290 ± 35
< 300
< 300
< 300
< 300
300 ± 50
< 320
320 ± 80
342 ± 15
< 345
< 345
351 ± 20
< 360
360 ± 20
364 ± 8
376.8 ± 1.7
378 ± 5
380 ± 5
395 ± 25
396 ± 20
< 400
400 ± 50
< 430
445 ± 2
~ 450
450 ± 10
Tvären
~ 455
~ 455
470 ± 30
~ 470
~ 470
< 500
< 500
< 500
500 ± 10
500 ± 20
< 505
< 508
> 515
> 545
550 ± 100
> 550
Sääksjärvi
~ 560
Spider
> 570
~ 590
Söderfjärden
~ 600
Beaverhead
~ 600
Saarijärvi
> 600
Strangways
646 ± 42
Jänisjärvi
700 ± 5
< 1000
~ 1000
> 1000
< 1200
< 1400
1630 ± 5
1640 - 600
> 1700 < 2100
< 1800
Paasselkä
< 1800
1850 ± 3
~ 2000
2023 ± 4
~ 2400


 

 

 

 

 

 

* 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 - Metasedimetary 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)


| Africa | Asia | Australia | Europe | North America | South America |

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

Impact Cratering Essay

Earth Impact Database Frequently Asked Questions

 

PASSC Director: John Spray
Data Manager

Last updated January 15, 2010

Site developed and maintained by
Planetary and Space Science Centre
University of New Brunswick
Fredericton, New Brunswick, Canada
Queries to: passc@unb.ca