Monday, April 20, 2026

M7.4 earthquake to start a sequence that completes the stretch

 



This has the appearance of following the big nuclear earthquake.  I don't use the Japanese names because they hurt my brain.  With the rest of the world, we have 1 in 100 chance of this being a foreshock to the M9-something, but in Japan, it's 1 in whatever.

Crystal-sharp and clean lines means a big M9ish earthquake every few hundred years.  Japan has the records to show it.  The M9 will rip from the lower hump to the big crook.  In contrast, the famous Cascadia anxiety zone is a mucky mess and never has a 9.  

In a week or so, the odds will sink back to the normal horrible odds for Japan.

ps yeah, Japan stole the number from me, which I stole from somebody else.



2 comments:

CB said...

"This has the appearance of following the big nuclear earthquake." Do you mean this was an aftershock to that quake, or has a similar appearance to that quake? Thanks.

Harold Asmis said...

The big Wackyshima M9+ earthquake was just down south a bit. It had an M7+ earthquake foreshock. Basically, all these M9ish earthquakes have an M7 foreshock, but there's a hundred m7's that don't have anything following them.