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Asperity Distribution of the 1952 Great Kamchatka Earthquake and its Relation to Future Earthquake Potential in Kamchatka

  • Jean M. Johnson
  • Kenji Satake
Part of the Pageoph Topical Volumes book series (PTV)

Abstract

The 1952 Kamchatka earthquake is among the largest earthquakes of this century, with an estimated magnitude of M w = 9.0. We inverted tide gauge records from Japan, North America, the Aleutians, and Hawaii for the asperity distribution. The results show two areas of high slip. The average slip is over 3 m, giving a seismic moment estimate of 155 x 102ONm, or M w = 8.8. The 20th century seismicity of the 1952 rupture zone shows a strong correlation to the asperity distribution, which suggests that the large earthquakes (M > 7) are controlled by the locations of the asperities and that future large earthquakes will also recur in the asperity regions.

Key words

Subduction zones slip distribution tsunamis 

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Copyright information

© Springer Basel AG 1999

Authors and Affiliations

  • Jean M. Johnson
    • 1
    • 2
  • Kenji Satake
    • 3
  1. 1.Earthquake Research InstituteUniversity of TokyoTokyoJapan
  2. 2.Division of Natural SciencesShorter CollegeRomeUSA
  3. 3.Seismotectonics SectionGeological Survey of JapanTokyoJapan

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