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Re: [OM] OT: Major Earthquake

Subject: Re: [OM] OT: Major Earthquake
From: Chris Trask <christrask@xxxxxxxxxxxxx>
Date: Mon, 26 Feb 2018 16:16:09 -0700 (GMT-07:00)
     I think I'll stick with solid ground.

     When they have THE BIG ONE in LA, Phoenix, Tucson, Las Vegas and other 
cities out here are designated as refugee centres.

>When a building is designed to be jiggly, it all works pretty well.
>This one, our company occupies, was designed without active dampening
>systems, but has a sliding base as well as a rubbery steel structure.
>There is another tall one a few blocks away that has an active system
>and it is really amazing how effective it is. The slab moves 90
>degrees out of phase and will stop any given movement within two
>cycles--or something like that. Another building has a steel column
>running up the center and the rest of the building attaches to it with
>hydraulic pistons. But the problem is that some of these earthquakes
>don't rock-and-roll in single direction waves. It's weird when the
>earth is moving east-west and all a sudden, it moves north instead.
>But these buildings in midtown Anchorage are in an area where you can
>sometimes see the ground ripple and houses down the block are higher
>than and then lower than yours.
>Our house is in one of the best locations in the entire Anchorage area
>as far as ground movement is concerned. A little shake at our house
>will translate into books falling off the bookshelf down in the city.


When the going gets weird, the weird turn pro 
     - Hunter S. Thompson
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