
Could San Andreas Be Next?
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Could San Andreas Be Next?
Just thinking.....the long waves underground can travel through the mantle and set off other big quakes thousands of kms away.....san andreas?

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Re: Could San Andreas Be Next?
I don't think so.
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Re: Could San Andreas Be Next?
Pacific plate involved in both, if I understood correctly. Don't know of any way to tell whether the Japan quake increased or decreased the pressure at San Andreas. Or had no influence at all.
Nothing to do but
, I guess.
Nothing to do but

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Re: Could San Andreas Be Next?
If it were the long waves, it would have been triggered some time ago...
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Re: Could San Andreas Be Next?
Japan is sat atop a subduction zone, where the some of the oldest Pacific plate is dipping down under the Okhotsk plate. The San Andreas is a different type of boundary - slightly unusual in that the "spreading centre" of the Pacific ocean plate is kind of riding under the North American continental plate. Because of the way these spreading centres lie on the globe, we end up with areas that slide against each other, and the effect of this is that one part of California is moving against the other.
(Spreading centres are visible top and bottom in the middle of the red zones (youngest ocean floor) - it's already gone under CA so one side is sort of carrying western CA further west - orange line is roughly the San Andreas fault. Yellow and orange dots are recent earthquakes.)
Here are the recent quakes in Japan and the subducting margin.
(Spreading centres are visible top and bottom in the middle of the red zones (youngest ocean floor) - it's already gone under CA so one side is sort of carrying western CA further west - orange line is roughly the San Andreas fault. Yellow and orange dots are recent earthquakes.)
Here are the recent quakes in Japan and the subducting margin.
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Re: Could San Andreas Be Next?
I watched a program once, where scientists showed how one earthquake sets off a chain reaction along the fault.
New Zealand has already been hit.... it's moving around.
New Zealand has already been hit.... it's moving around.
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Re: Could San Andreas Be Next?
But it's not the same fault.Deep Sea Isopod wrote:I watched a program once, where scientists showed how one earthquake sets off a chain reaction along the fault.
New Zealand has already been hit.... it's moving around.
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Re: Could San Andreas Be Next?
So who's fault is it?Thinking Aloud wrote:But it's not the same fault.Deep Sea Isopod wrote:I watched a program once, where scientists showed how one earthquake sets off a chain reaction along the fault.
New Zealand has already been hit.... it's moving around.

It's part of the same ring of fire though?

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Re: Could San Andreas Be Next?
Both countries are on the western margin of the Pacific plate, which is bounded on all sides by a series of different margin types, and many many areas of faulting.Deep Sea Isopod wrote:So who's fault is it?Thinking Aloud wrote:But it's not the same fault.Deep Sea Isopod wrote:I watched a program once, where scientists showed how one earthquake sets off a chain reaction along the fault.
New Zealand has already been hit.... it's moving around.![]()
It's part of the same ring of fire though?
If the quakes were propagating along the plate boundary, I'd expect to see a few in between too. Yellow, orange and red dots are quakes in the last week.
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Re: Could San Andreas Be Next?
Still waiting for Mt. Wilshire to erupt. 

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Re: Could San Andreas Be Next?
Whose fault is that?Gawdzilla wrote:Still waiting for Mt. Wilshire to erupt.
"A philosopher is a blind man in a dark room looking for a black cat that isn't there. A theologian is the man who finds it." ~ H. L. Mencken
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
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Re: Could San Andreas Be Next?
Bloods.FBM wrote:Whose fault is that?Gawdzilla wrote:Still waiting for Mt. Wilshire to erupt.
Crips.
Bloods.
Crips.
Bloods.
Crips.
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Re: Could San Andreas Be Next?
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Re: Could San Andreas Be Next?
There's a thread for that elsewhere...Crumple wrote:

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