期刊
GEOMATICS NATURAL HAZARDS & RISK
卷 1, 期 1, 页码 85-93出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/19475701003648077
关键词
-
We used ALOS InSAR images to study land surface deformation over the Crandall Canyon mine in Utah, which collapsed on 6 August 2007 and killed six miners. The collapse was registered as a M-L 3.9 seismic event. An InSAR image spanning the time of the collapse shows 25-30 cm surface subsidence over the mine. We used distributed dislocation sources to model the deformation field, and found that a collapse source model alone does not adequately fit the deformation field. Normal faulting is also required, such that the event is best characterized as a 'trapdoor' collapse. The calculated moment of the normal fault is about the same as the moment of the collapse source, with each larger than the seismically computed moment. Our InSAR results, including the location of the event, the extent of the collapsed area, and constraints on the shearing component of the deformation source, all confirm and extend recent seismic studies of the 6 August 2007 event.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据