What bothers me, though, is that it occurred near the epicenter of that last biggie, an M7.7, I think. The USGS aftershock forecast for this 8.2 is 3% or less for something bigger in the near future, and no one credible that I`ve read is predicting anything, but I do wonder if these might turn out over the longer -- but still human relevant -- term to be foreshocks of something more along the lines of 1964.
That's inevitable eventually, of course. This part of the Aleutian Trench has been relatively quiet for a while, they say, meaning lots of energy is still stored. Just wish there was a better way to forecast those Really Big Ones. If there is time, will try to read and digest the USGS paper linked in that tweet.