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Modified mercalli intensities for nine earthquakes in central and western Washington between 1989 and 1999
; Brocher, T M; Dewey, J W; Cassidy, J F. United States Geological Survey, Open-file Report 2017-1104, 2017, 82 pages,
https://doi.org/10.3133/ofr20171104 
Open Access (ESS
Cont.# 20160102)