The large red dot shows the February 28, 2001 M6.8 Nisqually earthquake. Aftershocks are also shown in red. Some historical deep earthquakes (M>4) are also shown in purple:

• #1 = 1949, M7.1, 54km deep;
• #2 = 1965, M6.5, 57km deep;
• #3 = 1975, M4.0, 41km deep;
• #4 = 1975, M4.2, 45km deep;
• #5 = 1989, M4.4, 45km deep;

Recent deep earthquakes include the following:

 DATE-(UTC)-TIME   LAT(N) LON(W)   DEP  MAG QUAL COMMENTS
yy/mm/dd hh:mm:ss   deg.   deg.    km   Ml
01/02/28 18:54:32  47.14N 122.72W  51.9 6.8  BA  FELT
01/02/28 19:02:03  47.18N 122.72W  52.3 1.0  BA
01/03/01 09:10:20  47.19N 122.71W  54.3 3.4  BA  FELT
01/03/01 14:23:34  47.18N 122.72W  51.4 2.7  BA  FELT
01/03/11 11:57:36  47.20N 122.62W  47.8 1.2  AB