Not to tempt bad juju but I'm wondering if there are any civil engineers here who could shed some light on this.

I know that with the renovations the eastern and western halves of CMS are loosely connected (if you will) such that each half can move independently.

But let's say a big one does hit and the halves shift with respect to one another in multiple axis (x, y, and z). Is it likely that the area along the fault will still need major repairs? For example, let's say the western half shifts 1 foot higher, 1 foot forward and 1 foot away.

I don't know, but I bet the department is counting on this movement to have an excuse for the student section to be moved from the 50.

But seriosuly, if the sides of CMS are moving that much, I don't think people will really worry about CMS needing repairs - the campus and city would be completely messed up for years.

The sides being separated will mean they will not be as stressed by the slow creep of the fault in the upcoming years. I remember reading somewhere that CMS is designed to prevent loss of life in a major earthquake... that doesn't mean it would be occupy-able afterwards.

The rebuilt sections are actually five different blocks. Starting in the South End and progressing clockwise through the Stadium:

Sections MM and M are anchored into the hillside. These sections are the southern end of the Main Concourse.

Sections LL through KK are part of a Fault Rupture Block on the south. This block is expected to move independently of the West and East sides of the stadium.

Sections K through AA comprises the vast majority of the reconstructed area and is west of the Hayward Fault. The Press Box is in this block.

Sections AA through XX are part of a Fault Rupture Block on the north. This block is expected to move independently of the West and East sides of the stadium.

Sections X through WW are anchored into the hillside. These sections are the northern end of the Main Concourse.

The Fault Rupture Blocks are supposed to give way in the event of a major earthquake and will show the most displacement relative to the field's position.

The Hayward Fault is a strike-slip fault. Movement along the fault is almost entirely horizontal, not vertical. If the Hayward were a thrust fault, or a subduction fault (such as in Washington state), there would be vertical movement or displacement.

FiatSlug;734688 said:

---

The rebuilt sections are actually five different blocks. Starting in the South End and progressing clockwise through the Stadium:

Sections MM and M are anchored into the hillside. These sections are the southern end of the Main Concourse.

Sections LL through KK are part of a Fault Rupture Block on the south. This block is expected to move independently of the West and East sides of the stadium.

Sections K through AA comprises the vast majority of the reconstructed area and is west of the Hayward Fault. The Press Box is in this block.

Sections AA through XX are part of a Fault Rupture Block on the north. This block is expected to move independently of the West and East sides of the stadium.

Sections X through WW are anchored into the hillside. These sections are the northern end of the Main Concourse.

The Fault Rupture Blocks are supposed to give way in the event of a major earthquake and will show the most displacement relative to the field's position.

The Hayward Fault is a strike-slip fault. Movement along the fault is almost entirely horizontal, not vertical. If the Hayward were a thrust fault, or a subduction fault (such as in Washington state), there would be vertical movement or displacement.

---

Hope this doesn't mean I'm gonna be sitting in some dude's lap on the other side of the street after the shakin stops. In English , um .. did I pick the right section?

ThoseBearNestEcstasies;734735 said:

---

Hope this doesn't mean I'm gonna be sitting in some dude's lap on the other side of the street after the shakin stops. In English , um .. did I pick the right section?

---

In plain English, I think that fans have little or nothing to worry about. If the Hayward Fault lets go during a football game, the occupants will be physically fine. Shaken and stirred, quite probably; but physically, fine.

There's an animated video showing what should happen if a magnitude 7.0 seismic event hits during a football game. I thought it was on www.berkeley.edu, but I can't find it.

Basically, the Fault Rupture Blocks slip and turn on their horizontal polyethylene sheets, but the structures should remain essentially intact. The West Side structure should also remain essentially intact.

FiatSlug;734744 said:

---

There's an animated video showing what should happen if a magnitude 7.0 seismic event hits during a football game. I thought it was on www.berkeley.edu, but I can't find it.

---

I remember different videos on the subject, but this one was new to me and interesting. It does have an animation around 3:20 of the stadium in an earthquake. wonder what happens to those seated on the actual crack?



another little article I had never seen before:
http://www.wired.com/magazine/2010/12/st_calstadium/

Thanks, ColoradoBear1 for finding the video that I could not.

When I was re-surveying the stadium seating configuration on-line, I found that the aisle separating Sections K and KK has a zig-zag in it that shows part of the border between the stationary West Side and the Fault Rupture Block on the south end (Rows 31 to 49).

Listening to Payne in that video makes me feel sorry for Nevada...

That game is so out of reach for them with our players finally getting their new home, it is ridiculous.


I bet we would beat ANY team in our first game in that stadium. Pats, Giants, GB... all toast.