Earth, Planets and Space

, Volume 57, Issue 4, pp 297–301 | Cite as

Tsunami due to the 2004 September 5th off the Kii peninsula earthquake, Japan, recorded by a new GPS buoy

  • Teruyuki Kato
  • Yukihiro Terada
  • Keiji Ito
  • Ryuji Hattori
  • Takenori Abe
  • Toshihide Miyake
  • Shun’ichi Koshimura
  • Toshihiko Nagai
Open Access
Letter

Abstract

A tsunami due to the 2004 M7.4 September 5th earthquake off of the Kii peninsula, Japan, was recorded at the GPS buoy newly designed and established in April 2004, about 13 km off of the Muroto Promontory, southwestern Japan. The tsunami arrived at the buoy about 8 minutes before its arrival to the nearest tide gauge station at the tip of the Muroto Promontory. The predicted tsunami record based on preliminary source model shows excellent agreement (rms 2.7 cm) with the observed GPS record. This demonstrates that GPS buoy observations can be used not only for a tsunami warning system, but also for precise determination of the tsunami source.

Key words

The 2004 off of the Kii peninsula earthquake GPS buoy Tsunami 

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Copyright information

© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. 2005

Authors and Affiliations

  • Teruyuki Kato
    • 1
  • Yukihiro Terada
    • 2
  • Keiji Ito
    • 2
  • Ryuji Hattori
    • 2
  • Takenori Abe
    • 2
  • Toshihide Miyake
    • 2
  • Shun’ichi Koshimura
    • 3
  • Toshihiko Nagai
    • 4
  1. 1.Earthquake Research Institutethe University of TokyoJapan
  2. 2.Technical Research InstituteHitachi Zosen Co. Ltd.Japan
  3. 3.Disaster Reduction and Human Renovation Inst.Japan
  4. 4.Port and Airport Research InstituteJapan

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