文化大學機構典藏 CCUR:Item 987654321/41844
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 47121/50987 (92%)
Visitors : 13803854      Online Users : 291
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/41844


    题名: Load-induced seismicity near Tsaoling, Taiwan
    作者: Chang, KW (Chang, Kaiwen)
    Chi, WC (Chi, Wu-Cheng)
    Chen, RF (Chen, Rou-Fei)
    Rau, RJ (Rau, Ruey-Juin)
    贡献者: 地質系
    关键词: CHI-CHI EARTHQUAKE
    TRIGGERED EARTHQUAKES
    LAKE OROVILLE
    RESERVOIR
    FAULT
    SEQUENCE
    MECHANISM
    CALIFORNIA
    INVERSION
    STRESSES
    日期: 2018-09
    上传时间: 2019-01-16 15:52:52 (UTC+8)
    摘要: Recent work shows erosion reduces vertical normal stress, triggering thrust earthquakes. Whether deposition will inhibit earthquake triggering, or favor different types of earthquakes is not clear. Here we address this question using earthquake catalogs, earthquake focal mechanisms, and a point-load stress transfer model to study induced seismicity at the Tsaoling impoundment after the 1999 Mw7.6 Chi-Chi earthquake. This impoundment formed when a river was blocked by the mainshock-induced landslide. Temporally, we found a marked increase and decrease in earthquake activities in this location at the beginning and end of this impoundment life cycle. Spatially, the number of earthquakes decreased away from the impoundment in a pattern correlated with surface point load models based on both the Boussinesq and Westergaard equations. Using first motions and SH to P amplitude ratios, we derived focal mechanisms, and found the point source on surface weakens the strike-slip and normal fault planes mostly occurred during our study period. Some of the Chi-Chi aftershocks not explained by dislocation stress transfer studies can be explained by such load-induced seismicity. Previous studies show earthquakes can affect surficial geological processes; this study suggests that surficial processes can create positive loading that feedbacks and triggers seismicity.
    显示于类别:[Department of Geology] journal articles

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML327检视/开启


    在CCUR中所有的数据项都受到原著作权保护.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈