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Posted on 06/10/2026 6:41:20 AM PDT by BenLurkin
The critical role of Cajon Pass
Cajon Pass is the tectonically complex junction where the San Andreas and San Jacinto faults converge. It’s located near several densely populated communities, including Los Angeles, San Bernadino, Riverside, and Coachella Valley.
Burkhard and her colleagues determined that Cajon Pass can act as a so-called “earthquake gate,” controlling whether large ruptures remain confined to a single fault or cross both fault systems.
When stress on both faults accumulates simultaneously toward similarly high levels, it’s more likely that a large joint rupture will cross both systems, according to the study.
The model showed that stress has reached 3.6 megapascals (MPa) on the San Jacinto-Bernadino section, the highest level seen anywhere in the 1,000-year simulation. Meanwhile, the neighboring Mojave South section of the San Andreas fault has accumulated 2.8 MPa of stress, indicating that both segments are under similarly high levels of strain.
Again, this study does not predict when the next major earthquake could rock Southern California, nor does it show that such an event is necessarily imminent. Rather, it offers a clearer picture of the region’s seismic hazard. This critically stressed fault system could rupture at any time, so communities need to prepare for the worst-case scenario.
(Excerpt) Read more at gizmodo.com ...
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Can it wait a few days? I’m in Hermosa Beach om a business trip until Friday.
Remember that there are some good folks who live in California....
Yes there are. I have family in CA. They grew up there in the 60’s and 70’s. However their kids now in their 30’s are leaving. They see no future in the state of California.
There was a big one in the SF bay area in 1989 when the bay bridge collapsed. And the Northridge quake in LA.
Sylmar 1971, 6.6 Richter
Northridge 1994, 6.7 Richter
Ridgecrest 2019, 7.1 Richter
I remember them all, and none too fondly.
One of my neighbors couldn’t take it and moved to Las Vegas after Northridge.
That Ridgecrest quake was the longest and strongest and it picked up speed as it went. I thought it was going to knock the house apart. I bet the house hasn’t forgotten it either.
It’s affordable. A bit noisy, though.
Those are all on different faults.
I wonder..
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What do you wonder about? Like are there good people in California? I certainly count myself as good.
You need to move. ;-D
Easier said than done.
Besides, shouldn’t people stay and fight?
If you face greater than 10:1 odds you are assured of defeat.
I haven’t given up on California. It’s just the coastal cities that are nuts.
https://www.bbc.com/news/election/2024/us/states/ca
Same with the western side of the country. It makes sea level rising seem inviting. ;-D
Yes. Both the Eastern and Western liberal coastal elites in this country are buying ocean-side houses with no worries about climate change. So maybe one day their houses will be under water.
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