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

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)297-301
Number of pages5
Journalearth, planets and space
Volume57
Issue number4
DOIs
Publication statusPublished - 2005
Externally publishedYes

Keywords

  • GPS buoy
  • The 2004 off of the Kii peninsula earthquake
  • Tsunami

ASJC Scopus subject areas

  • Geology
  • Space and Planetary Science

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