IBC Existing Building Code "High Seismic Zone"?

[MWPC]

The IBC Existing Building Code uses the term "in high seismic zones...". I connot find a definition for that in either the existing building code or the main IBC. What am I missing? Thanks.

 

[MWPC]

I called IBC. They said it was a left over historical reference. Maybe now they will revise in the 09 edition.

 

[msquared48]

If what msucog says ("US Hazards By Lat/Long", thread487-198381) is in fact the case, then this "historical reference" reason may be merely a case of saving face here. It will be interesting to see what happens. Really, how important is public safety to the IBC?

Another case of being "politically correct"?

Mike McCann
McCann Engineering

 

[msucog]

oops, wrong link there mike.

http://www.eng-tips.com/viewthread.cfm?qid=198387&page=1

high seismic zones? i don't know the "official" definition. i would presume it'd be several places in california, new madrid, charleston (big red spots on the usgs maps + a few others like eastern TN).

http://earthquake.usgs.gov/research/hazmaps/products_data/2002/2002April03/US/US5hz2500v4.pdf

 

[msquared48]

Yep:

It is USGS, and the 1 should have been a 7 in the thread. I really screwed up that one. Senior moment(s).

Mike McCann
McCann Engineering