Izvestiya, Physics of the Solid Earth

, Volume 43, Issue 9, pp 754–765

Spatial relation between the tidal component of seismic noise and development zones of strong earthquakes (from long-term regular observations on the Kamchatka Peninsula)

  • V. A. Saltykov
  • Yu. A. Kugaenko

DOI: 10.1134/S1069351307090042

Cite this article as:
Saltykov, V.A. & Kugaenko, Y.A. Izv., Phys. Solid Earth (2007) 43: 754. doi:10.1134/S1069351307090042


The results of long-term studies of seismic noise before strong regional earthquakes on the Kamchatka Peninsula in 1992–2006 are presented. These results show that parameters of seismic noise variations caused by the tidal effect depend on the source position of the forthcoming earthquake. The reproducibility of the observed effects is demonstrated by the example of two strong deep (∼200 km) subduction earthquakes with similar parameters that occurred on June 16, 2003 (M = 6.9), and on June 10, 2004 (M = 6.8). The physical mechanism of the synchronization of the tidal component extracted from high-frequency seismic noise with the wave of the gravitational tidal potential can be related to the possible development of near-surface dilatancy zones.

PACS numbers


Copyright information

© Pleiades Publishing, Ltd. 2007

Authors and Affiliations

  • V. A. Saltykov
    • 1
  • Yu. A. Kugaenko
    • 1
  1. 1.Kamchatka Branch, Geophysical ServiceRussian Academy of SciencesPetropavlovsk-KamchatskiRussia

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