SEARCH

SEARCH BY CITATION

From studies of deformation at the Southern California Earthquake Center (SCEC), Shen et al. (Eos, October 28, 1997) found that postseismic effects are both significant and long-lasting. While this is reassuring, the tone of this article may suggest to the uninformed reader that such effects are a new discovery, and especially since recent SCEC reports [Jackson et al., 1997; Shen et al., 1997] provide little indication of the rich history and literature on the phenomena of postseismic viscoelastic relaxation. While there are limits on the number of references in any article, the reference in Shen et al. [1997] pointing out the significance and persistence of postseismic deformation is a Science Perspective article of Jackson et al. [1997]; the latter article, while expressing excitement about the observation of postseismic effects in GPS data and how such effects may be used to provide information about the crust's inelastic properties, is nonetheless devoid of citations or even of any analysis concerning this phenomena.