Image:CalMemStadFaultCreep.jpg
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Major sections of California Memorial Stadium have been offset due to aseismic creep of the Hayward Fault. Image by User:Leonard G.
The sections are offset here (on the south end of the stadium) about 1/6 m here (6-7 inches), with the total fault creep estimated at 13 inches since the construction of the stadium 84 years previous to this image. The footings for the supports have not offset, causing the divergence of the columns to appear only at the top, but more visible than otherwise owing to the angle between them.
In the event of a major fault movement the displacement here could be several feet, leading to the dismantling of the structure. Seismic retrofit modifications will be performed in the near future as part of a major upgrade to the stadium, probably involving rebuilding portions upon floating mats (foundations that do not penetrate the surface, rather sitting upon level graded gravel) where they pass over and near the fault, with appropriate sliding connections for the safety of spectators.
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- (del) (cur) 00:40, 2 October 2006 . . Leonard G. (Talk | contribs) . . 768×1024 (301,987 bytes) (Major sections of California Memorial Stadium have been offset due to aseismic fault creep of the Hayward Fault. Image by User:Leonard G. {{pd-self]])
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