Posted on 02/13/2019 9:42:26 AM PST by BenLurkin
Back in the summer of 2016, a big earthquake struck northwestern Turkey. That’s not so unusual, considering that the region sits atop a highly active branching fault network that has a history of producing some seriously powerful tremblors.
The strange thing about this particular quake is that it lasted for 50 days, and not a single soul felt it. According to a new study in Earth and Planetary Science Letters, the temblor was a very peculiar type of earthquake known as a slow slip event. Unlike “typical” earthquakes, which crack the crust with a sudden jolt, slow slips involve very gradual movement along a fault.
They release none of the damaging seismic waves you might normally expect, which means they don’t produce shaking.
…
Prior to the turn of the millennium, the consensus among geologists was that faults could break in two main ways. On one end of the scale, you get stick-slip faults, which can get stuck for hundreds of thousands of years before suddenly rupturing in large quakes. On the other end, you get faults that creep along quite passively, moving no faster than the rate at which your fingernails grow.
“Slow slip events made us realize that there’s a whole spectrum of fault slip between the two,” Bell says. These curiosities release the energy matching that of a sudden, big earthquake but happen over such a long time that the energy never translates to any surface shaking. If the former could be compared to powder keg explosions, then slow slip events are more like candles slowly burning through their fuel.
(Excerpt) Read more at nationalgeographic.com ...
So then it wasn’t an earthquake.
I had a girlfriend in college like that.
stick-slip faults = "stuck-up sl*ts"
“Tremblor” s.b. temblor.
The single thing I really wanted to know about this wasn’t revealed in the NG article: how much slip occurred? 5 millimeters? 5 yards? 5 furlongs? Sure, there was a “slip”, but how significant was it? You’d think that might have been relevant info to include.
If it don’t move ya, it ain’t a quake. Just a little fault slip.
You have your intentional slow slips, like what the FBI did to Trump.
And then you have your unintentional slips by the slow, like Biden.
If the earth doesn’t quake, is an earthquake an earthquake?
And if your build your house with stiff mud, is it a pert dirt yurt?
I do that a lot. It makes for better reading
than the original, usually. LOL
The NZ slow-slip quakes move 10mm-30mm over days, weeks, or months.
Being ocean-shallow, it's probably easier to monitor than the deeper Turkey quakes.
May be apples to oranges, but there it is.
That’s still useful and informative - thanks!
This has been found by using GPS data. Nick mentions SLOW EARTHQUAKES at 13 min for the first time in this video.
YOUTUBE-SLOW SLIP EARTHQUAKES- CENTRAL WASHINGTON UNIV NICK ZENTNER
If you want to UNDERSTAND what is going on with earthquakes, Nick is an excellent source and has MANY videos on YOUTUBE. He also does an EXCELLENT job on the JDF subduction earthquake that will significantly damage the Washington/BC/Oregon coast somewhere in the next couple hundred of years. Maybe tomorrow, maybe hundreds of years from now, nobody knows.
At 40 min, Nick brings up the theory that the ETS events are loading the LOCKED ZONE from the transistion zone which means we might expect the really big earthquake to occur DURING the slow slip events.
Yep - kind of forgets the word “quake” as a descriptor...
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