Electronic Supplement to
Coda Q in the Northern Cascadia Subduction Zone

by Amir Mansour Farahbod, Andrew J. Calvert, John F. Cassidy, and Camille Brillon

Table S4. Average Q₀ and Estimated Uncertainties for Different Sampling Volumes for Stations That Are Shown in Figure S1

Station	Q0±Error (a2 = 40 km)	Q0±Error (a2 = 50 km)	Q0±Error (a2 = 60 km)	Q0±Error (a2 = 70 km)	Q0±Error (a2 = 80 km)	Q0±Error (a2 = 90 km)	Q0±Error (a2 = 100 km)
BBB	-	-	87±11(4)	108±14(3)	-	-	-
GOB*	-	-	-	-	113±33(2)	117±27(2)	98±13(2)
WHB*	-	-	-	-	-	153±30(2)	-
WKB*	-	-	68±25(2)	-	-	-	-

* Estimated values from Zelt et al. (1999).

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