Frictional discharge at fault asperities: Origin of fractal seismo-electromagnetic radiation

Jun Muto, Hiroyuki Nagahama, Takashi Miura, Ichiro Arakawa

研究成果: Article査読

27 被引用数 (Scopus)

抄録

To investigate the relation between the rock friction and the fractal electromagnetic radiation before the main-shock of earthquakes, we conducted a friction experiment simulating the motion of an asperity on a fault plane, and observed photon emissions due to electric discharge by dielectric breakdown of ambient gases from friction contacts between rock minerals. This indicates that frictional discharges (plasma generations) could occur locally at microscopic asperities on fault surfaces. From concepts on the fractal size-distribution and temporal evolution of fault asperities, the frictional discharge occurring at asperities on the fault plane can be one of origins of the fractal electromagnetic radiation (Benioff electromagnetic radiation) prior to earthquakes.

本文言語English
ページ(範囲)113-122
ページ数10
ジャーナルTectonophysics
431
1-4
DOI
出版ステータスPublished - 2007 2 20

ASJC Scopus subject areas

  • 地球物理学
  • 地表過程

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