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Applied Physics Letters / Volume 99 / Issue 20 / INTERDISCIPLINARY AND GENERAL PHYSICS

Appl. Phys. Lett. 99, 204101 (2011); http://dx.doi.org/10.1063/1.3660763 (3 pages)

Ozone generation by rock fracture: Earthquake early warning?

Raúl A. Baragiola, Catherine A. Dukes, and Dawn Hedges

Engineering Physics, University of Virginia, Charlottesville, Virginia 22904, USA

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(Received 10 August 2011; accepted 26 October 2011; published online 14 November 2011)

We report the production of up to 10 ppm ozone during crushing and grinding of typical terrestrial crust rocks in air, O2 and CO2 at atmospheric pressure, but not in helium or nitrogen. Ozone is formed by exoelectrons emitted by high electric fields, resulting from charge separation during fracture. The results suggest that ground level ozone produced by rock fracture, besides its potential health hazard, can be used for early warning in earthquakes and other catastrophes, such as landslides or land shifts in excavation tunnels and underground mines.

© 2011 American Institute of Physics

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KEYWORDS and PACS

Keywords

earthquakes, fracture, geomorphology, hazards, oxygen, ozone, rocks

PACS

  • 91.30.Px

    Earthquakes

  • 91.90.+p

    Other topics in solid Earth physics (restricted to new topics in section 91)

  • 91.60.Ba

    Elasticity, fracture, and flow

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3660763

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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    References

    R. Tirumala and D. B. Go, Appl. Phys. Lett. 97, 151502 (2010)APPLAB000097000015151502000001.


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