Occurrences and displacements of landslides by an earthquake with a subsequent rain: the 1999 Chi-chi earthquake in central Taiwan
-
- WANG Wen-Neng
- Industrial Technology Research Institute
-
- NAKAMURA Hiroyuki
- Tokyo University of Agriculture and Technology
-
- TSUCHIYA Satoshi
- Shizuoka University
-
- WU Shang-Chih
- Industrial Technology Research Institute
-
- OUYANG Shoung
- Industrial Technology Research Institute
この論文をさがす
説明
Many landslides occurred during the Chi-chi earthquake (ML=7.3) on 21 September 1999 in western central Taiwan. These land-slides have been discerned from either aerial photographs or SPOT images, digitized, and coregistered with topographic maps at 1: 25, 000 scale. The data of the landslides were manipulated using ArcView GIS. Results indicate that the rock formation consisting of sandstone with shale interbeds in Miocene age was most susceptible to landslides, whether by the earthquake or by the rain. Most earthquake-induced landslides occurred on the upper part of the slopes and many transported displace material to river channel. The average travel ratio of the earthquake-induced landslide was 1.2.<BR>Study results indicate that the Toraji typhoon-related landslide in 2001 was a secondary disaster of the Chi-chi earthquake. Due to relatively high water content in the displaced material, the average travel ratio of the typhoon-related landslide reached 1.5, greater than the earthquake-induced one.
収録刊行物
-
- 日本地すべり学会誌
-
日本地すべり学会誌 41 (4), 366-374, 2004
公益社団法人 日本地すべり学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390282680176880256
-
- NII論文ID
- 130003857359
- 10014195808
-
- NII書誌ID
- AA11837172
-
- ISSN
- 18820034
- 13483986
-
- NDL書誌ID
- 7176384
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可