Washington Public Power Supply System, Preliminary
Safety Analysis Report,
WPPSS Nuclear Project No. 1, 1300 MW Nuclear Power Plant, Vol. 2A.
1977
Table 2R-E9
TABLE 2R E-9
EARTHQUAKES INVESTIGATED
Epicentral
Map Intensity
No. Year Month Day Location (MM)
1873 Oct 18 Lake Chelan region, Wash.
1874 Jan 17 Yakima, Wash.
1875 May 6 Yakima, Wash.
1875 May 6 Yakima, wash.
19 1891 Sep 2 Ritlville, Wash. iv
1892 Feb 20 Chelan Falls, Wash.
23 1892 Mar 5 North Yakima, Wash. vi
1893 Jan 26? Methow Valley, Wash.
1893 Jul 7 Wenatchee, Wash.
1894 Apr 15 Ellensburg, Wash. iii
30 1897 Dec 15 Lakeside, Wash. v
1898 Jan Lakeside, Wash.
1898 Feb 22 Ellensburg, Wash.
1898 Jun 3 Lakeside, Wash.
37 1905 Oct 16 Chelan, Wash. v
1905 Dec Chelan, Wash.
1906 Nov 16 Chelan, Wash.
41 1907 Feb 17 Chelan, Wash. v
44 1909 Jan 21 Chelan, Wash. iv
1909 May 24 Waterville, Wash.
45 1909 May 24 Chelan-Leavenworth, Wash. v
1914 Feb 1 Lakeside, Wash.
1914 Aug 8 Lakeside, Wash.
1915 Mar 1 Lakeside, Wash.
55 1915 Mar 4 Lakeside, Wash. iv
57 1915 Jul 18 Lakeside, Wash. iv
58 1915 Aug 18 48.50N., 121.40W. vi
59 1915 Aug 18 48.50N., 121.40W. v
70 1918 Feb 28 Yakima, Wash. v
73 1918 May 7 North Fork Sauk River, Wash. iv
75 1918 Nov 1 46.70N., 119.50W. V-Vi
78 1920 Oct 7 Waterville, Wash. v
1922 Jan 31 Republic, Wash.
95 1926 Dec 30 Wenatchee, Wash. v
96 1927 Jan 2 Leavenworth, Wash. v
1930 Oct 7 Lemanasky Lake, Wash.
1931 Sep 18 Lakeside, wash.
102 1931 Dec 8 Lakeside, Wash. iv
1932 Aug 15 Chelan, Wash. iii
1932 Sep 5 Lakeside, Wash.
1933 Apr 29 Chelan, Wash.
1933 May 29 Chelan, wash.
114 1933 May 31 Chelan, Wash. iv
etc. (additional info on post-1928 earthquakes RSL)