Skip to content

Advertisement

  • Letter
  • Open Access

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

  • Teruyuki Kato17Email author,
  • Yukihiro Terada27,
  • Keiji Ito27,
  • Ryuji Hattori27,
  • Takenori Abe27,
  • Toshihide Miyake27,
  • Shun’ichi Koshimura37 and
  • Toshihiko Nagai47
Earth, Planets and Space201457:BF03352566

https://doi.org/10.1186/BF03352566

Received: 20 December 2004

Accepted: 6 April 2005

Published: 24 June 2014

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 earthquakeGPS buoyTsunami

Advertisement