re: #360 Dr Lizardo

IIRC, the San Andreas can - in theory - produce up to an 8.3, though though anything bigger than that is considered extremely unlikely.

The 1857 Fort Tejon quake is estimated to have been around 7.9 and that was on the San Andreas; that’s the same estimated magnitude as the 1906 San Francisco earthquake.

Correct. The Cascadian Subduction Zone has an upper limit north of 11.