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The Poodle is Quaking -- Research finds quakes can systematically trigger other ones on opposite side of Earth
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Research finds quakes can systematically trigger other ones on opposite side of Earth

New research shows that a big earthquake can not only cause other quakes, but large ones, and on the opposite side of the Earth.

The findings, published today in Scientific Reports, are an important step toward improved short-term earthquake forecasting and risk assessment.

Scientists at Oregon State University looked at 44 years of seismic data and found clear evidence that tremblors of magnitude 6.5 or larger trigger other quakes of magnitude 5.0 or larger.

It had been thought that aftershocks—smaller magnitude quakes that occur in the same region as the initial quake as the surrounding crust adjusts after the fault perturbation—were the only seismic activity an earthquake could lead to.

But the OSU analysis of seismic data from 1973 through 2016—an analysis that excluded data from aftershock zones—provided the first discernible evidence that in the three days following one large quake, other earthquakes were more likely to occur.

Each test case in the study represented a single three-day window "injected" with a large-magnitude (6.5 or greater) earthquake suspected of inducing other quakes, and accompanying each case was a control group of 5,355 three-day periods that didn't have the quake injection.

"The test cases showed a clearly detectable increase over background rates," said the study's corresponding author, Robert O'Malley, a researcher in the OSU College of Agricultural Sciences. "Earthquakes are part of a cycle of tectonic stress buildup and release. As fault zones near the end of this seismic cycle, tipping points may be reached and triggering can occur."

The higher the magnitude, the more likely a quake is to trigger another quake. Higher-magnitude quakes, which have been happening with more frequency in recent years, also seem to be triggered more often than lower-magnitude ones.

A tremblor is most likely to induce another quake within 30 degrees of the original quake's antipode—the point directly opposite it on the other side of the globe.

"The understanding of the mechanics of how one earthquake could initiate another while being widely separated in distance and time is still largely speculative," O'Malley said. "But irrespective of the specific mechanics involved, evidence shows that triggering does take place, followed by a period of quiescence and recharge."

Read more at: https://phys.org/news/2018-08-...-side-earth.html#jCp

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I love Mother
 
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I love Mother
 
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Thumbs Up

Interactive antipode map


>>>

"LIVE! Life is a banquet and most poor suckers are starving to death. LIVE! LIVE! LIVE!" Auntie Mame

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I never asked for trust funds. They were thrust upon me. Have pity.

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quote:
Originally posted by raisedbypoodles:
Thumbs Up

Interactive antipode map


Can that show where I have to dig a hole to get to China?

And do I have to move to Argentina?


I love Mother
 
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No no no. Here's a tutorial from Felix.



>>>

"LIVE! Life is a banquet and most poor suckers are starving to death. LIVE! LIVE! LIVE!" Auntie Mame

>>>

I never asked for trust funds. They were thrust upon me. Have pity.

<<<
 
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4923 Tard Points

God

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1hi1 Brewskis
 
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Hey Nik! 1hi1


>>>

"LIVE! Life is a banquet and most poor suckers are starving to death. LIVE! LIVE! LIVE!" Auntie Mame

>>>

I never asked for trust funds. They were thrust upon me. Have pity.

<<<
 
Posts: 3030 | Registered: August 21, 2001Reply With QuoteReport This Post
Picture of Helel ben Shaḥar
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This poodle says, "fuck the eqs, I'm going to bed!"

https://youtu.be/f7PhSsq5IYQ


"Covfefe!"

The member formerly known as Libertarian
 
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OMG! I haven't watched that in so long! Thanks Smile

I like the music. I ripped it off my SIMs game and burned a CD. Big Grin


>>>

"LIVE! Life is a banquet and most poor suckers are starving to death. LIVE! LIVE! LIVE!" Auntie Mame

>>>

I never asked for trust funds. They were thrust upon me. Have pity.

<<<
 
Posts: 3030 | Registered: August 21, 2001Reply With QuoteReport This Post
Picture of Norman Bates
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I love Mother
 
Posts: 130 | Location: Madness | Registered: October 20, 2015Reply With QuoteReport This Post



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