List of earthquakes in Washington ( state ) - wikipedia List of earthquakes in Washington ( state ) This is a list of earthquakes in Washington, a U.S. state. Date Location MMI Mag. Deaths Injuries Total damage / notes 2001 - 02 - 28 Puget Sound VIII 6.8 M 0 -- 1 400 $1 -- 4 billion 1999 - 07 - 03 Satsop VII 5.8 M 7 $8.1 million 1996 - 05 - 02 Duvall VII 5.6 M scientific interest 1965 - 04 - 29 Puget Sound VIII 6.7 M 7 $12.5 million 1962 - 11 - 06 Clark County VII 5.2 M Minor 1949 - 04 - 13 Olympia VIII 6.7 M 8 At least 64 $25 million 1946 - 06 - 23 Strait of Georgia VIII 7.3 M Limited 1945 - 04 - 29 North Bend VII 5.5 M Minor 1891 - 11 - 29 Puget Sound VI Tsunami NGDC 1872 - 12 - 15 North Cascades VIII 6.5 -- 7.0 scientific interest 1700 - 01 - 26 Cascadia subduction zone 8.7 -- 9.2 M Tsunami Note : The inclusion criteria for adding events are based on WikiProject Earthquakes ' notability guideline that was developed for stand - alone articles. The principles described also apply to lists. In summary, only damaging, injurious, or deadly events should be recorded. References Jump up ^ USGS ( September 4, 2009 ), PAGER - CAT Earthquake Catalog, Version 2008_06. 1, United States Geological Survey Jump up ^ Jackson, F.J. ; Molnar, S. ; Ghofrani, H. ; Atkinson, G.M. ; Cassidy, J.F. ; Assatourians, K. ( 2017 ), `` Ground Motions of the December 2015 M4. 7 Vancouver Island Earthquake : Attenuation and Site Response '', Bulletin of the Seismological Society of America, Seismological Society of America, 107 ( 6 ) : 2903, doi : 10.1785 / 0120170071 Jump up ^ Stover & Coffman 1993, pp. 380, 388 Jump up ^ Stover & Coffman 1993, pp. 380, 385 Sources NGDC, Significant Earthquake Database, National Geophysical Data Center, NOAA, doi : 10.7289 / V5TD9V7K Stover, C.W. ; Coffman, J.L. ( 1993 ), Seismicity of the United States, 1568 -- 1989 ( Revised ), U.S. Geological Survey Professional Paper 1527, United States Government Printing Office Earthquakes in Washington ( state ) 1700 Cascadia ( 8.7 -- 9.2 ) 1872 North Cascades ( 6.5 -- 7.0 ) 1946 Vancouver Island ( 7.3 ) 1949 Olympia ( 6.7 ) 1965 Puget Sound ( 6.7 ) 1996 Duvall ( 5.1 ) 2001 Nisqually ( 6.8 ) Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_earthquakes_in_Washington_(state)&oldid=835680545 '' Categories : Earthquakes in Washington ( state ) Washington ( state ) - related lists Lists of earthquakes in the United States Tsunamis in the United States Hidden categories : M mag M w M s Talk About Wikipedia Add links This page was last edited on 10 April 2018, at 03 : 45 ( UTC ). About Wikipedia

Question: when was the last time washington state had an earthquake
Answer: 2001-02-28