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Surges of cosmic radiation from space directly linked to earthquakes

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Re: Surges of cosmic radiation from space directly linked to earthquakes

#131

Earlier quoted context omitted.

Randomly sifting through data in search of patterns is not an experiment in the usual sense. With a big enough data set, you're guaranteed to find one in a billion, one in a trillion events by random chance.

Finding correlations is not the same as finding one in a trillion events.

When you have a trillion possible correlations, it is.

Re: Surges of cosmic radiation from space directly linked to earthquakes

#132

Related : Earthquakes here on earth DO emit light !! https://en.wikipedia.org/wiki/Earthquake_lights

At least one of the videos linked from the references in that article is pretty dramatic, with frequent pulses of blue light from different locations near the ground.[1] If there is a link between cosmic radiation and earthquakes (and that's a very big "if"), could it be Cherenkov radiation caused by super-high-energy particles exceeding the speed of electromagnetic radiation in bedrock/soil/whatever (not C, obviousl…

I live in Chile, one of the most seismically active countries in the world, and been through several earthquakes. Those lights? Just transformers and power lines blowing up. In the 2010 earthquake [1] we had several >6 Mag. aftershocks for days and we didn't see more flashes after the first shaking, simply because there wasn't power anymore.

[1]https://en.wikipedia.org/wiki/2010_Chile_earthquake

Re: Surges of cosmic radiation from space directly linked to earthquakes

#133
post #37

Earlier quoted context omitted.

It would be better than anything else we have at the moment

From https://en.wikipedia.org/wiki/List_of_earthquakes_2021%E2%80... there were 44 earthquakes with a magnitude >= 7.0 in the last 2.5 years. That is one every 17 days. The GP is almost correct: There is a high chance [1] of an earthquake somewhere in the world, including oceans, in 17 days. [1] If you want to be fancy with probabilities, 64% of at least one earthquake. In some 17 days periods you will get no earthqu…

Too late to edit: The correct number is 21 instead of 17.

The 64% is still 64% because if N is big enough it almost doesn't depend if you consider something with a probability of 1/17 in 17 days or something with a probability of 1/21 in 21 days.

Re: Surges of cosmic radiation from space directly linked to earthquakes

#134

The key claim in the paper ( https://arxiv.org/pdf/2204.12310.pdf ) is that there are detectable changes in cosmic ray activity around 15 days before major seismic events. One posited mechanism is that stuff happens deep in the earth that affects the magnetic field first, and then kicks off some big earthquake. But they don't rule out loopier ideas (like sunspot activity driving changes in the Earth's dynamo that the…

Given the planet is one big ol' magnet, it seems at least plausible to see interactions?

Re: Surges of cosmic radiation from space directly linked to earthquakes

#135
post #57

I think it's telling that none of the authors are geophysicists, and they definitely aren't statisticians either. The causality they're claiming just does not have any physical plausibility. > Dr. Homola states, “In the scientific world, it is accepted that a discovery can be said to have been made when the statistical confidence level of the corroborating data reaches five sigma, or standard deviations.” > Homola co…

I agree with you regarding p-values. But why are you appealing to credentials and dismissing the idea with your own boldly unsupported claim? > The causality they're claiming just does not have any physical plausibility. Survey the literature and you’ll find plenty of evidence that there is some credence to the idea.

Geomagnetism is easily measurable and has been monitored for a long time.

The central claim is that changes in cosmic ray frequencies can predict earthquakes. The proposed causal mechanism is changes in the geodynamo affecting the propagation of cosmic rays. The effect on cosmic rays is secondary to the changes in geomagnetism. Despite decades of people looking for evidence, changes in geomagnetism are not associated with earthquakes[0].

If this paper's hypothesis is true, geomagnetic fluctuations should co-occur with fluctuations of cosmic ray counts - thus geomagnetic fluctuations should also predict earthquakes. But they don't.

Claims of being able to predict earthquakes have had a long and not great history. Earthquake prediction is the faster-than-light travel of geophysics. Any claims that it is possible should be viewed with extreme scrutiny.

[0] https://www.usgs.gov/faqs/are-earthquakes-associated-variati...

Re: Surges of cosmic radiation from space directly linked to earthquakes

#136

Earlier quoted context omitted.

Or there's a common trigger event, like, say, a large gravitational wave or a passing cloud of weakly interacting matter(dark matter?) which triggers both increased cosmic ray emissions along with earthquakes. Not that I believe any of this, but it seems we're just pulling stuff out of our asses so I figured I'd give it a shot.

One aspect of gravity waves is that other than being extremely weak, they cannot perform work. So they don't cause mechanical forces.

Wait, really? Why not? That's fascinating

Edit: ah, you mean for any practical purposes. Duh.

Re: Surges of cosmic radiation from space directly linked to earthquakes

#137

Earlier quoted context omitted.

Or there's a common trigger event, like, say, a large gravitational wave or a passing cloud of weakly interacting matter(dark matter?) which triggers both increased cosmic ray emissions along with earthquakes. Not that I believe any of this, but it seems we're just pulling stuff out of our asses so I figured I'd give it a shot.

One aspect of gravity waves is that other than being extremely weak, they cannot perform work. So they don't cause mechanical forces.

Oh really? I didn't know that. If they cannot perform work, how can we detect them?

Re: Surges of cosmic radiation from space directly linked to earthquakes

#138
post #14

The key claim in the paper ( https://arxiv.org/pdf/2204.12310.pdf ) is that there are detectable changes in cosmic ray activity around 15 days before major seismic events. One posited mechanism is that stuff happens deep in the earth that affects the magnetic field first, and then kicks off some big earthquake. But they don't rule out loopier ideas (like sunspot activity driving changes in the Earth's dynamo that the…

It's fine to form a hypothesis from old data ... but it's not a theory yet until that hypothesis is challenged by (and isn't falsified by) future data :-)

Does old data discovered in the future count?

Re: Surges of cosmic radiation from space directly linked to earthquakes

#139
post #99
post #96

This was discussed quite a bit after 2004 asian tsunami, which was triggered by an earthquake near Antarctica and there was also some massive gamma ray burst (or something) occurring about the same time. I wouldn’t be surprised. It’s a connected universe. No thing is an island.

Well, islands are islands, aren't they?

That depends on the sea level, doesn't it? Even islands are connected to the rest of the world.

Re: Surges of cosmic radiation from space directly linked to earthquakes

#140

The key claim in the paper ( https://arxiv.org/pdf/2204.12310.pdf ) is that there are detectable changes in cosmic ray activity around 15 days before major seismic events. One posited mechanism is that stuff happens deep in the earth that affects the magnetic field first, and then kicks off some big earthquake. But they don't rule out loopier ideas (like sunspot activity driving changes in the Earth's dynamo that the…

> One thing that troubles me in the paper is that the researchers appear to have gone looking for precursor patterns in an ad hoc way, with no physical theory in mind, just trying different binning techniques and delays until they got a signal.

I believe in particle physics this is known as the “look-elsewhere effect”. Basically if look long and hard enough for a pattern, you will eventual find it if your parameter space is large enough: https://en.m.wikipedia.org/wiki/Look-elsewhere_effect

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