Will It Shake? The Pictures
When we ask our readers to submit questions about what will happen to their stuff in an earthquake, there are always surprises. Framed pictures hanging directly over the bed? You’ve got to be kidding!
San Francisco resident Penny Jennings contacted Totally Unprepared recently, curious about what would happen during an earthquake to the framed photos and pictures she has hanging on her wall…
directly over her bed.
It’s bad enough if that lovely picture of Great Aunt Mabel smashes to the floor and breaks the glass. But if those pictures hang directly above your bed, where are you going to hide if there is an earthquake?
With a little preparation, if an earthquake strikes when you are sleeping, you’ll survive unhurt. So secure those pictures today.
Earthquake nerds everywhere are going to say, “Hey, that’s only a one-degree of freedom shaketable AND you only show shaking for a few seconds, there’s no way that replicates a 6.9 magnitude or a 7.5 magnitude earthquake.” Well they’re right, we only show the shaking for a few seconds because while the tension was enormous in the lab when we shook the table for a long time, it was really boring to watch on video. Our attention spans are not so long.
As for how Seismic Engineers Paul and Andy estimated the magnitude using a one-degree of freedom shaketable, that is beyond our knowledge, but we’ll tell you we watched them put the simulation of the Kobe earthquake into the computer, and make crazy quantities of calculations before they’d crank it up for us.
The important thing for you to know is that in a real earthquake the ground can move in six directions, not just one, and that a 7.5 magnitude earthquake is going to be a lot longer than what you’re watching. But your pictures are still going to fall on the ground if they’re not attached with earthquake safe hooks.
Media guide available for download here.