EQF and all, it may not seem important, but it is. What you posted is a hypothesis, not a theory. Something that is scientifically tested is a theory (and a theory may need to have some acceptance also?) I don't know if you mean strain, which is deformation, or stress, which is a force applied to an area. It sounds like you mean stress. While the Japan quake seismic waves might indeed have triggered some global quakes (it has happened for previous major and great quakes), I have not casually noticed anything unusual. But, depending on what you meant (terminology), I don't think that building stress in Japan can have any affect on quakes in Arkansas. It just does not work that way. Plus, the Arkansas M2.5+ quakes have not followed your proposed pattern at all.

You (or Roger, or Brian) may want to plot Arkansas M2.5+ quakes against date, all of them, for the last 6 months. You can put the shutoff date of the injection wells, and also M7+ clobal quakes.

Chris