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As someone who has experienced hundreds quakes ranging up to a magnitude 8.0. Including a magnitude 7.1 quake whose epicenter was only 2.5 miles away from my home. A 5.7 magnitude quake is a serious quake. When they are below magnitude 5.0 they can be fun, but at 5.0 and above they become a concern and can potentially cause serious damage. Particularly in States that do not regularly get moderate to large quakes. I'm glad to see the damage in Utah was minor and that there were no injuries, it could have been worse.
Where you're at it's totally serious business, Fairbanks 1964...houses winding up a hundred feet higher than the ones on the other side of the road, entire streets torn to shreds, total collapse of entire sections of the town center.
Yes, Alaska is definitely serious business where quakes are concerned, no question about it.
But again, in the end, seismic construction standards make a difference.
In 1994 my apartment building in Santa Monica PANCAKED.
But seismic standards here in Cali are almost as stringent as Japan's.
Stuff still gets serious and yes, you can still get seriously injured but buildings are safer now, and if they can't be made safer, they get torn down, simple as that.
That's how we roll down here.
I would imagine that trying to enforce those kinds of construction standards on old buildings in small Alaskan towns would not be feasible. So I cannot dispute your perspective.
And, you guys have had quakes 8.0 and even ABOVE an eight if my memory serves me right.
And yes, as you mentioned, it also has a lot to do with the epicenter AND the DEPTH, too.
A 4.4 with a depth of only a mile or so can be horrifically bad compared to a 6.4 at several miles deep.
And the epicenter is a huge factor.