I like this paper, because it introduced me to the concept of 'slab dessication', which is the drying out of the subducting slab. And where does all that water go, people? That's right, straight out the volcanoes, the giant a-holes of the earth!
This picture is great!
The basic idea of the paper is that there is very little room for this type of interslab earthquake, so they are most likely confined to only M7, and deep. Therefore (to me), they are of little consequence.
This picture confirms the very unique conditions for this type of earthquake. That doesn't say anything about the big sucker that is yet to come, but that is more of a tsunami threat, and shouldn't bother reasonably engineered buildings.