What You Can Do
- Bolt sill plate to foundation
- Reinforce crawl space or “cripple” walls under floor joists
- Connect rim joists to top plates with metal brackets1
1“What You Can Do”, Structural Engineers Association of Northern California, 25
Jan 2007.
Magnitude 3.5 and Greater, 1974 - 2003
|
|
State
|
Number of
Earthquakes
1974-2003
|
Percent
of Total
|
|
1.
|
Alaska
|
12053
|
57.2 %
|
|
2.
|
California
|
4895
|
23.2 %
|
|
3.
|
Hawaii
|
1533
|
7.3 %
|
|
4.
|
Nevada
|
778
|
3.7 %
|
|
5.
|
Washington
|
424
|
2.0 %
|
|
6.
|
Idaho
|
404
|
1.9 %
|
|
7.
|
Wyoming
|
217
|
1.0 %
|
|
8.
|
Montana
|
186
|
0.9 %
|
|
9.
|
Utah
|
139
|
0.7 %
|
|
10.
|
Oregon
|
73
|
0.3 %
|
Earthquake Hazard Program, “Top Earthquake States”, USGS, 04 Feb 2007.
Latest Earthquakes in the USA
Earthquake Hazard Program, “Latest Earthquakes in the USA”, USGS, 04 Feb 2007.