Glad that all of you are safe and sound. It's got to be scary, even after
all this time.
On Thu, Dec 27, 2018 at 3:43 PM Ken Norton <ken@xxxxxxxxxxx> wrote:
> > Fairly strong M4.9 this morning at 1421 UTC. This one was at the
> southern edge of the aftershock zone, fairly close to Anchorage.
>
> They're ALL close to Anchorage!
>
> This one worked as a fine alarm clock. Everything rattled and shook.
> Good rumble with it that started a couple seconds before the shaking.
> But what was kinda odd about this one is that there was a gentle
> shaking that went on for another 15-20 seconds after the quake.
> Usually the shaking is just you, but in this case, it was actually the
> ground still moving.
>
> A 4.9 doesn't do any damage and at most you'll have a few things slide
> back and forth on the counter-top. But it is still unnerving.
> Especially the sound.
>
> The temporary road repairs are somewhat holding. It'll be a long way
> to this summer when they can repair things correctly. One bridge that
> I cross every day has had the ground settle a foot or two on the
> south-end departure. The bridge is fine, but you kinda launch coming
> off of it. Of course, it's on a curve and always icy.
>
> Looking back at the earthquake, it's kinda deceiving. A 7.0 is a
> strong earthquake no matter where it's at. We were VERY fortunate that
> it didn't last very long. Another 30 seconds and I think we'd be
> looking at a serious number of casualties--probably many in the
> building I was in. The duration was just at the threshold of soil
> liquifaction, so we really lucked out there. Nearly all road failures
> were caused by slumping. But the structures all held up with
> essentially no impressive failures to make world news headlines. This
> is a seismic "Zone 4" (old rating system) area so all construction has
> to conform to the highest seismic requirements. The problem is that
> the human body still experienced a 7.0 earthquake regardless of how
> the buildings fared. We don't have the highly visible scars that make
> headline news and infrastructure was nearly unscathed. But the human
> mind is still traumatized.
>
> Yet, this is Alaska. The general attitude here is that "everything can
> kill you" here. If the earthquakes don't get you, the weather, bears,
> moose, wolves, and criminals will. So, live every day to the fullest.
>
> AG
> --
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Paul Braun WD9GCO
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www.ARnewsline.org <http://www.arnewsline.org>
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