posted on Apr, 24 2012 @ 11:17 PM
Well, there is little need to wonder what a mega-quake in the U.S. would look like. A recent thread inspired putting this together but isn't intended
to discuss that. It did occurr to me though that few people have probably dug into Government sites deeply enough to realize Uncle Sam has asked this
question. Repeatedly. Uncle Sam has put his best minds on it and they've not only come up with an answer of what this will look like some day, but
specifically, what it will likely feel like in different areas based on geology.
Here is the Los Angeles area after a 7.8 quake is projected and run as a scenario by the U.S.G.S.:
...and here is a historical 7.8 quake in the same region but from a slightly different fault line for geography and geology.
The difference in effect is striking. However, it's amazing to see just how critical those factors are for making calamity vs. a very bad day. Here is
a staggering 9.0 off the Pacific Northwest.
and finally, I am sure everyone would feel a little jipped if I didn't include this one for context and pure doom porn fascination.
now... Here is New Madrid, Missouri. It's not quite the same level of the last triple set of quakes, but close enough for context.
Now these scenario maps show a scale a little different than most people are used to seeing on the MSM reports. Everyone is familiar with the numbered
scale showing strength. The Roman Numerals at the bottom of these scales are something different though and it isn't simply a variation to display the
same number. It's called the Mercalli Scale and I believe it's actually more relevent to the actual impact of a quake.
As the 9.0 shows, an ENORMOUS quake isn't necessarily a calamity for the land nearby. Likewise, the 7.8 in the L.A. Basin is deep red across a
sickening area I personally know as very dense population that just runs as solid city across that whole area of the map.
The Mercalli Scale for Earthquake Intensity and Damage
Anyway, I thought everyone might find this interesting for context and some mental perspective for what quakes of this size are projected to look like
in a real and literal way. Uncle Sam really has taken the time to know.
edit on 24-4-2012 by Wrabbit2000 because: (no reason given)