Global Probabilistic
Noise Maps by Period
click on period range for map or just scroll down the page
0.0625-0.125 sec
0.125-0.25 sec
0.25-0.5 sec
0.5-1.0 sec
1.0-2.0 sec
2.0-4.0 sec
4.0-8.0 sec
8.0-16.0 sec
16.0-32.0 sec
32.0-64.0 sec
64.0-128.0 sec
Updated: 24-Feb-05
Maintained by: Dan McNamara
mcnamara@usgs.gov
USGS National Earthquake Information Center
URL http://gldbrick.cr.usgs.gov