WIT Press

Appropriateness Of Rotary Spectral Analysis For The Study Of Array Observation Records

Price

Free (open access)

Paper DOI

10.2495/SD950271

Volume

15

Pages

12

Published

1995

Size

1,079 kb

Author(s)

T. Chiba & J. Kimura

Abstract

Rotary spectral analysis is carried out using records of earthquake motion taken with a dense seismometer array. It is shown that rotary spectral analysis is useful in determining seismometer setting errors. This study also demonstrates that rotary spectral analysis can be used to determine the spatial variation of seismic motions. 1 Introduction Grasping the spatial variable characteristics of seismic waves is crucial to predicting the safety of large scale and/or subterranean structures in case of an earthquake. Since recording earthquake motion at single locations as in the past does not provide sufficient data for accurate evaluation of such spatial variables, an array of seismometers placed both above and below the ground over a wide area is use

Keywords