Interesting quake follow-up article: what geologists don't know about the fault system underneath southern California probably eclipses what they do know.


http://www.latimes.com/local/la-me-0318-earthquake-los-angeles-20140318,0,300057.story#axzz2wGXI21P9


"Monday's 6:25 a.m. temblor showed that for all that is understood about quakes, much remains unknown. Southern California's most destructive earthquakes in the last generation — the 5.9 Whittier Narrows in 1987 and the 6.7 Northridge in 1994 — occurred on faults unknown to scientists before the shaking began."


.