Skip to content

Advertisement

  • Article
  • Open Access

Local site amplification and damage to wooden houses in Shimoenoki, Tottori, Japan, by the 2000 Western Tottori Earthquake

  • 1Email author,
  • 2,
  • 2 and
  • 2
Earth, Planets and Space201454:BF03352078

https://doi.org/10.1186/BF03352078

  • Received: 17 April 2002
  • Accepted: 29 July 2002
  • Published:

Abstract

The degree of damage to wooden houses in the vicinity of the source area of the 2000 Western Tottori Earthquake was very low compared to the 1995 Hyogo-ken Nanbu Earthquake. Shimoenoki in Hino Town, however, suffered remarkable damage compared to other villages, particularly to residential wooden houses. Furthermore, although Shimoenoki is a small area of only 300 × 400 m2, the damage varied markedly from the foot of the mountains through central Shimoenoki to the Hino River. From the damage distribution based on a survey of all wooden houses, the local site-amplification characteristics estimated from aftershock records, and the transfer functions of wooden houses evaluated using microtremors, the spatial variation of damage appears to be attributed to the variation in site-amplification factors at frequencies between 2 and 5 Hz, which is close to the first natural frequency of wooden houses.

Keywords

  • Main Shock
  • Damage Level
  • Strong Ground Motion
  • Spectral Ratio
  • Peak Ground Velocity

Advertisement