Auxiliary Material for Paper 2012GL052351 A slow slip event in the south central Alaska Subduction Zone and related seismicity anomaly Meng Wei and Jeffrey J. McGuire Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA Eliza Richardson Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania, USA Wei, M., J. J. McGuire, and E. Richardson (2012), A slow slip event in the south central Alaska Subduction Zone and related seismicity anomaly, Geophys. Res. Lett., 39, L15309, doi:10.1029/2012GL052351. Introduction This auxiliary material contains four figures. 1. 2012gl052351-fs01.pdf Figure S1. (a) The distribution of wavelet translations used at the different spatial scales in this study. (b) Examples of the wavelets for the j =0, −1, −2, −3 scales at a particular translation. 2. 2012gl052351-fs02.pdf Figure S2. (a) Secular velocity estimated based the whole time series. (b,c) The result of NSF at station SELD. 3. 2012gl052351-fs03.pdf Figure S3. GPS stations overlain with topography of the South Central Alaska. 4. 2012gl052351-fs04.pdf Figure S4. (a) Cross Validation Sum of Squares (CVSS) versus smoothness parameter. (b) Trade-off curve of the misfit and roughness. Http://dx.doi.org/10.1029/2012GL052351