Posted on 12/09/2019 9:15:28 AM PST by Red Badger
Provocative analysis of sea-floor cores suggests that quakes on the Cascadia fault off California can trigger tremors on the San Andreas.
Two of North America’s most fearsome earthquake zones could be linked.
A controversial study argues that at least eight times in the past 3,000 years, quakes made a one–two punch off the west coast of the United States. A quake hit the Cascadia fault off the coast of northern California, triggering a second quake on the San Andreas fault just to the south. In some cases, the delay between the quakes may have been decades long.
The study suggests that Cascadia, which scientists think is capable of unleashing a magnitude-9 earthquake at any time, could set off quakes on the northern San Andreas, which runs under the San Francisco Bay Area.
Several earthquake scientists told Nature that more work is needed to confirm the provocative idea. Researchers have long considered the two faults seismically separate.
Chris Goldfinger, a geologist and palaeoseismologist at Oregon State University in Corvallis, will present the findings on 13 December at a meeting of the American Geophysical Union in San Francisco. “This is mostly a circumstantial case,” he says. “I don’t have a smoking gun.”
(Excerpt) Read more at nature.com ...
Ping.
Ping.
Thru no fault of global warming.
So Seattle, Portland, and SF will go kaput simultaneously....
So they are linked through no fault of their own.
Further proof that humans have no say so when it comes to controlling this mother earth.
““This is mostly a circumstantial case,” he says. “I don’t have a smoking gun.”
However, with a Billion $’s to study these faults, I can link them to Gorebull warming.
Makes sense though, doesn’t it? Faults activity and earthquakes are all about relieving pressures. If an adjacent fault gives in to some pressures are on it, then more pressure moves to it’s neighboring faults. On the larger scales, the plates have a small degree of elasticity to them. Combine that with frictions at the fault points, and what you have are endless series of various faults moving and elastically putting more pressure on other faults that haven’t moved.
Terrible pun!: “So they are linked through no fault of their own.”
I see what you did there.......................
Yes it was. :)
I think Rummy’s unknowns quote oughta hang in the office/study/sanctum sanctorum of every geologist.
Combine that with frictions at the fault points, and what you have are endless series of various faults moving and elastically putting more pressure on other faults that haven’t moved.
Sure seems so.........God made preparations................
Only on free republic, can we have interesting possible scientific study interspersed with terrible faults. :)
not faulty logic, or even subductive reasoning
When asked if he expects us Left Coast residents to be scared, Doctor Goldfinger replied:
“No Mr. Bond! I expect you to die!”
I can’t find fault with that. :)
Two major earthquakes of 8+ in the Pacific Northwest (with likely accompanying tsunamis here) and in California hitting one right after the other would be catastrophic. I see this a good horror story to tell at a conference to get the scientists all in a lather and to convince the government to give them more money.
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