I've been cleaning up the huge piles of paper on my home office floor and had cut out a "highlights" article from EOS on a Vidale et al. paper in Gcubed that small quakes within the Cascadia subducting slab are related to tremor. This highlights is at least a few months old so is possible that John previously posted on this.

John, more science posts here would be of interest. It's pretty quiet here.

Chris