US Nuclear Power Plants, Seismic Hazard, and Population Impact
H
!
H
!
!
H
H
!
!
H
H
!
H
!
!
H
H
!
H
!
!
H
H
!
H
!
!
H
!
H
!
H
H
!
!
!H
H
!
H
H
!
H
!
!
H
!
H
H
!
H
!
!
H!H
!
H H
H
!
!
H
!
!
H
!
H
H
!
H
!
H
!
!
H
!
H
!
H
!
H
!
H
H
!
!
H
!
H
H
!
!
H
H
!
!
H
H
!
H
!
H
!
H
!
!
H
!
H
!
H
H
!
!
H
H
!
!
H
US Population: 306 Million
10 Mile Population: 5.7 Million
50 Mile Population: 117.7 Million
H
!
!
H
H
!
!
H
!
H
VI
Light
VII
Moderate
VIII
Mod. to Heavy
.1
0.
91
-1
.9
3
-0
0.
74
.7
2
-0
0.
63
0.
54
-0
.6
3
5
.5
0.
46
-0
.4
8
0.
39
-0
.3
2
-0
0.
33
0.
28
-0
.3
7
2
.2
0.
23
-0
.1
0.
19
-0
.2
8
3
.0
-0
-0
V
V. Light
0.
06
0
Mercalli Intensity
Potential Damage
-0
3
.1
H
!
0.
14
2
9
!
H
50 Mile Radius of Nuclear Plant
Total Population in Radius
0.
1
1
.0
H
!
5
Reactors per Site
Earthquake Risk & Potential Damage*
Peak Ground Acceleration (PGA) for 10% Probability in 50 Yrs (g)
-0
Nuclear Power Plants
IX
Heavy
*User Notes: This map represents seismic data of Peak Ground Acceleration (PGA) for seismic events with a 10% probablility in 50 years.
Utilizing the PGA color scale, approximations of structural damage and earthquake intensity can be made based upon the Mercalli Intensity
scale. US populations within a 50 mile radius of each nuclear plant is estimated and overlaid upon seismic risk.
25,523 - 748,635
748,636 - 1,946,243
1,946,244 - 3,364,996
3,364,997 - 5,778,906
5,778,907 - 17,552,810
.
!
®
*Nuclear power plant locations based on 2010-2011 Nuc lear Regulatory Commission data
TM
*Population data based on LandSc an 2008
Global Population Dataset
*Earthquake data based on the USGS 2010 National Seis mic Hazard Maps