Electric Phenomena for Earthquake Prediction Thomas St-Laurent - - PowerPoint PPT Presentation

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Electric Phenomena for Earthquake Prediction Thomas St-Laurent - - PowerPoint PPT Presentation

Electric Phenomena for Earthquake Prediction Thomas St-Laurent Earthquake prediction: Objective To predict the location of the epicenter of an earthquake in space and time and magnitude Different Timescales Long term : 10 to 1 years


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Electric Phenomena for Earthquake Prediction

Thomas St-Laurent

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Earthquake prediction: Objective

To predict the location of the epicenter of an earthquake in space and time and magnitude Different Timescales Long term : 10 to 1 years Intermediate term: 1 year Short term : 1 month to a few days Immediate term: A few hours

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Earthquake Precursors

An anomalous event which occurs prior to an earthquake and might be used to predict an event. Issues: Not always reliable Not present in every event Often understood as a precursor event after the fact.

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Earthquake precursors

Non-Seismic Precursors Animal Agitation Ultra low Frequency EM waves EM field anomalies Earthquake lights Seismic Precursors Foreshocks Movement of Tectonic plates Behavior of Fault

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Lights after 8.2 Magnitude Earthquake in Mexico City, September 8 2017 https://www.youtube.com/watch?v=jTzImJ5tnCo&t=29s

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Lights seen before the 2008 Sichuan Earthquake in China https://www.youtube.com/watch?v=KKMTSDzU1Z4

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Piezoelectricity

Brothers Pierre and Jacques Curie, French phycisists, demonstrated piezoelectricity in 1880.

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Piezoelectricity

Brothers Pierre and Jacques Curie, French phycisists, demonstrated piezoelectricity in 1880. Mechanical Stress Electricity

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Piezoelectricity

In 1881, the opposite phenomena was demonstrated, which made piezoelectric effect a reversible process. Mechanical Stress Electricity

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Piezoelectric Technology Examples

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Rocks as Batteries

Friedemann Freund was researching crystal defects in MgO and could increase its conductivity if its defects were “activated”. Common rocks in the crust demonstrate the same defects. In 1990 Freund hypothesized that he could generate electricity by stressing the rock.

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In 2006

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P – Type Semiconductor

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Ionization of Air

In 2009 Freund and a group of students showed that with sufficient stress, the air could be ionized

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Lights seen before the 2008 Sichuan Earthquake in China https://www.youtube.com/watch?v=KKMTSDzU1Z4

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What this means for Earthquake Prediction

A physical understanding of the relationship between stress in rock and electromagnetic phenomena. Change in the electromagnetic field could have its reflection in the stress in rocks below. The Earth is a Dynamic Body There might not be a method to predict all earthquakes, electric phenomena could help us predict at least some earthquakes.

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Further Implications (from my intuition):

Using piezoelectricity to “harness” electricity from seismic waves? A model of the earth as a huge battery or semiconductor? EM radiation from Sun and far away stars affect stress in the crust? Ancient pyramids used as Energy generating/transforming devices?

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References

  • http://www.dailymail.co.uk/sciencetech/article-2532812/How-mysterious-orbs-used-predict-earthquakes-Scientists-link-

strange-lights-movement-Earths-crust.html

  • http://dev.nsta.org/evwebs/2014102/news/default.html
  • https://www.seti.org/seti-institute/project/details/friedemann-freund-%E2%80%94-future-forecasting-earthquakes
  • http://www.isfep.com/FF_PhysChemEarth_Understanding.pdf
  • https://en.wikipedia.org/wiki/Piezoelectricity#/media/File:Piezoelectric_balance_presented_by_Pierre_Curie_to_Lord_Kel

vin,_Hunterian_Museum,_Glasgow.jpg