Table 1 - Risk of direct impact for a given location
Diameter | Kinetic Energy | Area Devastated |
|
||
(m) | Mt TNT | sq km | Earth | "City" | Inhabited Region & Expected Death toll |
50
|
10
|
1900
|
100 yr
|
30 million yr
|
900 yr
1 million
|
100
|
75
|
7200
|
1000 yr
|
70 million yr
|
8000 yr
3 million
|
200
|
600
|
29 000
|
5000 yr
|
90 million yr
|
30 000 yr
14 million
|
500
|
10 000
|
70 000
|
40 000 yr
|
290 million yr
|
180 000 yr
30 million
|
1 km
|
75 000
|
200 000
|
100 000 yr
|
260 million yr
|
290 000 yr
60 million
|
2 km
|
1 million MT
|
-
|
1 million yr
|
-
|
1 million yr
1.5 billion
|
All*
|
90 yr
|
14 million yr
|
800 yr
|
That is why their description of the damage versus the size of the impactor are so wildly out of whack. Their numbers don't jibe.