Accomodating Recent Increase in Earthquakes
Accomodating Recent Increase in Earthquakes
(OP)
How are you accounting for the global increase in seismic activity?
Earthquakes have increased. Has anyone modified their design procedures to account for the increased probability of seismic events?
I am being extra cautious in considering building design, and especially connections. I've been reading and improving my design process.
I've been looking at buildings that failed.
What are others doing?
Earthquakes have increased. Has anyone modified their design procedures to account for the increased probability of seismic events?
I am being extra cautious in considering building design, and especially connections. I've been reading and improving my design process.
I've been looking at buildings that failed.
What are others doing?





RE: Accomodating Recent Increase in Earthquakes
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Accomodating Recent Increase in Earthquakes
By disaster pack, do you mean copies of ATC-20 and other evaluation materials?
What is your disaster pack?
RE: Accomodating Recent Increase in Earthquakes
Living where I do, it's just a matter of time before we will be seeing what a lot of other locations in the world already have.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Accomodating Recent Increase in Earthquakes
I don't necessarily agree with an "increased probability of seismic events"; does anyone really know why EQs happen? I'm being philosophical not technical.
RE: Accomodating Recent Increase in Earthquakes
RE: Accomodating Recent Increase in Earthquakes
http://
The measuring of earthquakes has changed. Prior to the 70's, the Richter scale was used. Today, the "moment magnitude" scale is used. (Excuse the wikipedia link... its a good summary)
h
Here is Time's list of the top 10 quakes of all times. Printed in 2010, it omits the Honshu quake. Add that in, and 4 of the top 10 are in the last decade:
http://ww
Ah. Here is the winner: USGS compiled quake totals worldwide. The increase is obvious:
http:/
The table at the above link is best. All the measurements are on the same Mw scale.
RE: Accomodating Recent Increase in Earthquakes
RE: Accomodating Recent Increase in Earthquakes
Just don't buy the no increase scenario...
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Accomodating Recent Increase in Earthquakes
http://
RE: Accomodating Recent Increase in Earthquakes
My guts, and I do trust them, tell me the number and magnitudes are increasing, and I'll just leave it at that.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Accomodating Recent Increase in Earthquakes
RE: Accomodating Recent Increase in Earthquakes
A read and look at the pictures etc. in the thread htt
"If man made it, then God can tear it down"
[Everyone have a good weekend, and msquared48, you may want to pack a slide rule like I have in my little disaster kit, as you may find they run a little better than electronic calculators and computers when there is no power!]
RE: Accomodating Recent Increase in Earthquakes
Regards,
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