Aftershock observation in the focal region of the 2000 Western Tottori earthquake

Takeshi Nakamura; Hiroshi Takenaka; Atsushi Watanabe; Yushiro Fujii; Sadaomi Suzuki

Aftershock observation in the focal region of the 2000 Western Tottori earthquake

Takeshi Nakamura, Hiroshi Takenaka, Atsushi Watanabe, Yushiro Fujii, Sadaomi Suzuki

Research output: Contribution to journal › Article › peer-review

Abstract

The 2000 Western Tottori earthquake (MJMA7.3) occured in the western part of the Tottori prefecture in Japan on October 6, 2000. We observed aftershocks of this earthquake at three temporary stations of broadband seismograph close to the aftershock region from October 7 to December 1, 2000. The spectra of this aftershock show predominant frequencies of 0.3Hz at FKB and RFJ stations and 0.4Hz at KSD station. Those predominant frequencies may present seismic source process of this aftershock. Another predominant frequency was observed in 5Hz at KSD and RFJ stations. This predominant frequency may present a strong site-effect around these stations. We also performed an array observation by six temporary stations with short-period seismographs to study seismic wave propagation. We report the detail of observational conditions and show some waveforms of the aftershocks.

Original language	English
Pages (from-to)	49-59
Number of pages	11
Journal	Science Reports of the Kyushu University, Department of Earth and Planetary Sciences
Volume	21
Issue number	2
Publication status	Published - Jan 1 2002
Externally published	Yes

Keywords

Aftershock observation
Array observation
Broadband seismograph
The 2000 Western Tottori earthquake

ASJC Scopus subject areas

Space and Planetary Science
Earth and Planetary Sciences(all)

Cite this

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title = "Aftershock observation in the focal region of the 2000 Western Tottori earthquake",

abstract = "The 2000 Western Tottori earthquake (MJMA7.3) occured in the western part of the Tottori prefecture in Japan on October 6, 2000. We observed aftershocks of this earthquake at three temporary stations of broadband seismograph close to the aftershock region from October 7 to December 1, 2000. The spectra of this aftershock show predominant frequencies of 0.3Hz at FKB and RFJ stations and 0.4Hz at KSD station. Those predominant frequencies may present seismic source process of this aftershock. Another predominant frequency was observed in 5Hz at KSD and RFJ stations. This predominant frequency may present a strong site-effect around these stations. We also performed an array observation by six temporary stations with short-period seismographs to study seismic wave propagation. We report the detail of observational conditions and show some waveforms of the aftershocks.",

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T1 - Aftershock observation in the focal region of the 2000 Western Tottori earthquake

AU - Nakamura, Takeshi

AU - Takenaka, Hiroshi

AU - Watanabe, Atsushi

AU - Fujii, Yushiro

AU - Suzuki, Sadaomi

PY - 2002/1/1

Y1 - 2002/1/1

N2 - The 2000 Western Tottori earthquake (MJMA7.3) occured in the western part of the Tottori prefecture in Japan on October 6, 2000. We observed aftershocks of this earthquake at three temporary stations of broadband seismograph close to the aftershock region from October 7 to December 1, 2000. The spectra of this aftershock show predominant frequencies of 0.3Hz at FKB and RFJ stations and 0.4Hz at KSD station. Those predominant frequencies may present seismic source process of this aftershock. Another predominant frequency was observed in 5Hz at KSD and RFJ stations. This predominant frequency may present a strong site-effect around these stations. We also performed an array observation by six temporary stations with short-period seismographs to study seismic wave propagation. We report the detail of observational conditions and show some waveforms of the aftershocks.

AB - The 2000 Western Tottori earthquake (MJMA7.3) occured in the western part of the Tottori prefecture in Japan on October 6, 2000. We observed aftershocks of this earthquake at three temporary stations of broadband seismograph close to the aftershock region from October 7 to December 1, 2000. The spectra of this aftershock show predominant frequencies of 0.3Hz at FKB and RFJ stations and 0.4Hz at KSD station. Those predominant frequencies may present seismic source process of this aftershock. Another predominant frequency was observed in 5Hz at KSD and RFJ stations. This predominant frequency may present a strong site-effect around these stations. We also performed an array observation by six temporary stations with short-period seismographs to study seismic wave propagation. We report the detail of observational conditions and show some waveforms of the aftershocks.

KW - Aftershock observation

KW - Array observation

KW - Broadband seismograph

KW - The 2000 Western Tottori earthquake

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SN - 1348-0545

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ER -

Aftershock observation in the focal region of the 2000 Western Tottori earthquake

Abstract

Keywords

ASJC Scopus subject areas

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