PDA

View Full Version : 7.0 Earthquake in Alaska 11-30-2018



Roger E. Moore
2018-Nov-30, 06:34 PM
https://www.cnn.com/us/live-news/alaska-earthquake/index.html?adkey=bn

Epicenter near Anchorage.

Anyone feel it? Tsunami warning is out.

Jim
2018-Nov-30, 07:06 PM
Peters Creek is just outside Anchorage. I'm guessing Brett felt it.

Swift
2018-Nov-30, 07:20 PM
Peters Creek is just outside Anchorage. I'm guessing Brett felt it.
I have heard from him and yes he felt it, and yes he is OK.

Swift
2018-Nov-30, 07:25 PM
USGS earthquake map (https://earthquake.usgs.gov/earthquakes/map/)

Showing lots of aftershocks in the 3 to 5 range.

Here is the link to the big 7.0 (https://earthquake.usgs.gov/earthquakes/eventpage/us1000hyfh/executive)

Here is the Tsunami Warning Center (https://www.tsunami.gov/)

Looks like the warnings have been lifted (if I'm reading this website correctly)

Roger E. Moore
2018-Nov-30, 07:28 PM
https://www.nbcnews.com/news/us-news/earthquake-hits-alaska-triggering-tsunami-warning-n942256

Widespread and serious infrastructure damage reported

Swift
2018-Nov-30, 07:30 PM
CBS news coverage (https://www.cbsnews.com/news/alaska-earthquake-today-anchorage-tsunami-alert-issued-live-updates/)

They are broadcasting from their studio in Anchorage, and the studio is a mess.

Roger E. Moore
2018-Nov-30, 07:53 PM
Politics aside, the quake appears to have damaged Sarah Palin's home. Family is okay.

Did Peters Creek take any damage? Any damage to the capitol building?

Roger E. Moore
2018-Nov-30, 07:59 PM
https://www.bloomberg.com/news/articles/2018-11-30/urgent-6-7-magnitude-earthquake-rocks-buildings-in-anchorage

Has photo of a car trapped when road ramp collapsed, more damage reports, many homes hit

UPDATE: NPR, with photo of same car from different angle

https://www.npr.org/2018/11/30/672240051/magnitude-7-0-earthquake-shakes-alaska-tsunami-warning-in-effect

PetersCreek
2018-Nov-30, 10:19 PM
Did Peters Creek take any damage?

We don’t know yet. I had just arrived at work (Anchorage ATCT/TRACON) when the quake struck. We’re about 15 miles from the epicenter, which was across Knik Arm and 41 km deep.

Our home is about 30 miles from my office and the northbound highway is jammed up good. So I suffered 1-1/2 hours of cross-town traffic, picked my wife, and we’re holed up at the Olive Garden.


Any damage to the capitol building?

Unlikely. The capitol is in Juneau, down in the panhandle.

PetersCreek
2018-Nov-30, 10:38 PM
Has photo of a car trapped when road ramp collapsed[...]

I drove by the scene of the collapsed on-ramp at Minnesota and International Airport Road. It was the worst of the damage I personally saw on the drive across town. I believe the other photo is an overpass on Minnesota, on the south side.

Jim
2018-Nov-30, 11:56 PM
Unlikely. The capitol is in Juneau, down in the panhandle.

Chris Jansing made that mistake on her coverage, saying Anchorage was the capitol. She later corrected herself and admitted it was embarrassing because that was her favorite joke, sort of the Alaskan version of Who's on First.

What's the capitol of Alaska?
Juneau.
If I knew I wouldn't ask.

Glad you and the missus are okay. I hope you find the house the same.

Gillianren
2018-Dec-01, 12:33 AM
A friend of mine lives up there and has checked in as safe. He says, if anything, his house is cleaner now, given how messy it was before. Also, there is no food he likes left in the house, which he also cannot blame on the earthquake.

Grant Hatch
2018-Dec-01, 01:45 AM
Everyone I know in Anchorage is fine though some were stranded for awhile. I occasionally worry about the statistically overdue earthquake in the Cascadia subduction zone off Oregon and Washington and consequent tsunami since the fault is offshore. North and south of the cascadia fault have been coming unzipped fairly regularly but not there yet.

https://www.cbsnews.com/news/pacific-northwest-braces-for-massive-earthquake-tsunami/

skysurfer5cva
2018-Dec-01, 02:52 AM
A friend's sister lives somewhere on the Kenai. I'll bet she got a good shaking. I need to follow up with him to see how she's doing.

PetersCreek
2018-Dec-01, 05:23 AM
All is well in Peters Creek. Got home after a 3½-to-4-hour drive and found ourselves very, very lucky if our local facebook groups are to serve as an indication. No obvious structural damage to the house and very little breakage of our treasures...very little.

Relaxing from the roller coaster day with a cigar and some scotch.

PetersCreek
2018-Dec-01, 05:36 AM
Just had a couple of small aftershocks, though.

PetersCreek
2018-Dec-01, 07:37 AM
And I just came back inside to find a water line to the garage heater leaking. Loosening and re-tightening seem to do the trick but I’ll be up a while to be sure.

PetersCreek
2018-Dec-01, 07:56 AM
Five aftershocks, 5.0M or better. Enough already.

Roger E. Moore
2018-Dec-01, 12:03 PM
Any damage to the capitol building?
Unlikely. The capitol is in Juneau, down in the panhandle.

I asked because, ah, uh, I am stupid. I've even visited Juneau and seen the capitol, and I asked anyway. So, stupid, that's me.

Roger E. Moore
2018-Dec-01, 12:13 PM
I remember news coverage of the 1964 Alaskan quake... no, correction, of the National Geographic coverage, which had a terrifying painting of a tsunami rolling over Kodiak, sweeping away diesel locomotives and screaming men and flaming oil all over it. Not realistic, but certainly caught the proper mood. There was a section by the wife of newscaster Lowell Thomas, whose home was swallowed by fracturing land as she and her children, in pajamas, clung to a raft of ice-covered ground as the earth broke apart around them. They never found their neighbors.

Roger E. Moore
2018-Dec-01, 12:23 PM
https://www.nationalgeographic.org/thisday/mar27/good-friday-earthquake/

Correction, the tsunami was in Seward. This was the painting. Nightmare fuel!

Spacedude
2018-Dec-01, 02:40 PM
Glad to hear you & family survived ok PC, no deaths reported last I heard so pretty amazing.


I remember news coverage of the 1964 Alaskan quake...

One of my brothers was stationed (AF) up there in 64' and was holding onto a 2nd story window frame when that big one hit. Emblazoned in his memory was the sight out the window of the distant landscape rolling like waves on an ocean.

Swift
2018-Dec-01, 03:07 PM
Our home is about 30 miles from my office and the northbound highway is jammed up good. So I suffered 1-1/2 hours of cross-town traffic, picked my wife, and we’re holed up at the Olive Garden.
Glad the bread sticks survived.

Gillianren
2018-Dec-01, 03:35 PM
One of my brothers was stationed (AF) up there in 64' and was holding onto a 2nd story window frame when that big one hit. Emblazoned in his memory was the sight out the window of the distant landscape rolling like waves on an ocean.

Hey, so was my dad! He was on leave, though--his mother was getting married (again) at the time, and he was visiting for the wedding in California. It ended in divorce, and Grandma used to say that was the one thing she got out of the marriage. Apparently, the wall over Dad's bunk collapsed.

Torsten
2018-Dec-01, 06:11 PM
All is well in Peters Creek. Got home after a 3½-to-4-hour drive and found ourselves very, very lucky if our local facebook groups are to serve as an indication. No obvious structural damage to the house and very little breakage of our treasures...very little.

Relaxing from the roller coaster day with a cigar and some scotch.

It's a good thing the bottle didn't fall, or survived a fall!

PetersCreek
2018-Dec-01, 10:10 PM
No, there weren’t any casualties of that sort but you should see pictures from some of the adult beverage stores. We just lost a piece of crockery and a mantel clock. Oh well, I’ve been wanting to build a clock.

Grey
2018-Dec-02, 03:50 PM
It's a good thing the bottle didn't fall, or survived a fall!"I lost a bottle of fine single malt because of the earthquake!"

"Oh, did the bottle fall and break?"

"No, but after making it through the quake, I was so shaken that I had to drink it all."

;)

Gillianren
2018-Dec-03, 03:58 PM
We lost a bottle of pure vanilla extract to the Nisqually earthquake. That did fall and break. That much vanilla is not a pleasant smell, but it's still better than the bottle of vinegar my family lost to an earthquake when I was a kid!

PetersCreek
2018-Dec-03, 06:04 PM
According to news radio this morning, we've had more than 1400 aftershocks.

Swift
2018-Dec-03, 06:09 PM
According to news radio this morning, we've had more than 1400 aftershocks.
Dare I say... "shocking!" ;)

Spacedude
2018-Dec-03, 07:04 PM
Whoa, 1400?....according to my rough calculations that's about one aftershock every 3-4 minutes. Getting much sleep?

PetersCreek
2018-Dec-03, 08:16 PM
Dare I say... "shocking!" ;)

No.

No, you may not. :p



Whoa, 1400?....according to my rough calculations that's about one aftershock every 3-4 minutes. Getting much sleep?

Aftershocks have ranged from a high of M5.7 shortly after the primary event down to M0.diddlysquat, with the vast majority being closer to the latter. We don't feel most of them or barely do. I just ran a search of the USGS earthquake database (https://earthquake.usgs.gov/earthquakes/map/#%7B%22autoUpdate%22%3A%5B%5D%2C%22basemap%22%3A%2 2terrain%22%2C%22feed%22%3A%221543866213704%22%2C% 22listFormat%22%3A%22default%22%2C%22mapposition%2 2%3A%5B%5B60.7900027318028%2C-150.97412109375%5D%2C%5B61.937658373936586%2C-148.33740234375%5D%5D%2C%22overlays%22%3A%5B%22pla tes%22%2C%22faults%22%5D%2C%22restrictListToMap%22 %3A%5B%22restrictListToMap%22%5D%2C%22search%22%3A %7B%22id%22%3A%221543866213704%22%2C%22name%22%3A% 22Search%20Results%22%2C%22isSearch%22%3Atrue%2C%2 2params%22%3A%7B%22starttime%22%3A%222018-11-26%2000%3A00%3A00%22%2C%22endtime%22%3A%222018-12-03%2023%3A59%3A59%22%2C%22maxlatitude%22%3A61.644% 2C%22minlatitude%22%3A61.06%2C%22maxlongitude%22%3 A-149.178%2C%22minlongitude%22%3A-150.392%2C%22minmagnitude%22%3A1%2C%22orderby%22%3 A%22time%22%7D%7D%2C%22sort%22%3A%22newest%22%2C%2 2timezone%22%3A%22utc%22%2C%22viewModes%22%3A%5B%2 2list%22%2C%22map%22%5D%2C%22event%22%3A%22ak20419 010%22%7D) that returned 1748 quakes in the immediate area since (and including) the big one. The linked search (if it works) is interactive but here's a static image, with a green star added for the approximate location of my home. I was at the airport at the time of the quake.

23788

Roger E. Moore
2018-Dec-03, 09:17 PM
Anyone have an interesting photo of cracked walls or broken cornices or anything? Fallen books in wavy rows? Fallen beer bottle? Something geological?

PetersCreek
2018-Dec-03, 09:56 PM
I don't have any photos of my own but you don't have to google very far to get them. Keywords: alaska, earthquake, "glenn highway", minnesota, and "vine road" to name a few.

Squink
2018-Dec-04, 12:51 AM
That's one heck of a quake cluster you've got going there. Has anyone compiled a convenient Time, Intensity, Depth and Location list,
like this for Vatnajökull (https://en.vedur.is/earthquakes-and-volcanism/earthquakes/vatnajokull/#view=table) ?

PetersCreek
2018-Dec-04, 06:45 AM
Yes, if you go to the link and select “Click for more information” at the top of the lefthand list, you can download the data in CSV and other formats.

CJSF
2018-Dec-04, 12:41 PM
[Shaking my head]

CJSF

Tom Mazanec
2018-Dec-04, 06:09 PM
dare i say... "shocking!" ;)

grrroooaaannnn!

Glom
2018-Dec-05, 03:15 PM
grrroooaaannnn!

That's what the tectonic plate said.

21st Century Schizoid Man
2018-Dec-05, 04:35 PM
I saw this on the television (in a metro train) in a language I can't understand. There were American flags in some of the scenes, so I figured it was in the US, but then I checked the news web sites, and didn't find word one about it. I was actually beginning to wonder if maybe it was historical footage, when I finally saw a web story about it.

I was a bit surprised that television news in Asia, with multiple video shoots of people ducking for cover, picked this up before the US-based web sites.

PetersCreek
2018-Dec-06, 11:23 PM
I was a bit surprised that television news in Asia, with multiple video shoots of people ducking for cover, picked this up before the US-based web sites.

I don't know why you didn't find it but it was in fact widely reported and very soon after it occurred. Google search keywords: alaska earthquake news stories; Filter: Nov 30, 2018. Results (https://www.google.com/search?q=alaska+earthquake+news+stories&rlz=1C1GGRV_enUS752US752&source=lnt&tbs=cdr%3A1%2Ccd_min%3A11%2F30%2F2018%2Ccd_max%3A1 1%2F30%2F2018&tbm=)

Today's aftershock tally is 2800-plus. I downloaded more seismic data this afternoon and came up with a distribution chart of magnitudes:

23803

So, as much as we complain about the stronger ones...we had a 4.8M this afternoon...the vast majority of them are quite mild.

21st Century Schizoid Man
2018-Dec-09, 06:39 PM
I don't know why you didn't find it but it was in fact widely reported and very soon after it occurred.

I cruised up and down the front pages of some of the US news service web sites, expecting to see a story about an earthquake in big letters, but found nothing. Maybe it had already passed out of the front page, or maybe I get defaulted to some international edition of the page that didn't have it, I don't know.

But I was seriously beginning to wonder if perhaps I had been watching some sort of documentary with historical footage, until I later found a story somewhere.

CJSF
2018-Dec-10, 05:44 PM
I saw the report initially via geoscience Twitter accounts I follow. I went to local and national news sites and they all had huge red banners declaring "BREAKING NEWS! EARTHQUAKE STRIKES ALASKA. TSUNAMI WARNING ISSUED!" and the like. Shortly thereafter, they had multiple "front" page news articles (some of them repeating useless and old information 1000 times, but front page nonetheless). Maybe you have site personalized and some sort of algorithm decided it wasn't newsworthy for you?

CJSF

publiusr
2018-Dec-10, 11:43 PM
https://www.nationalgeographic.org/thisday/mar27/good-friday-earthquake/

Correction, the tsunami was in Seward. This was the painting. Nightmare fuel!

This too
http://www.semparpac.org/alany/uscg/tsunami.jpg

schlaugh
2018-Dec-12, 01:11 PM
And another aftershock in Anchorage, this one 3.3.

https://earthquake.usgs.gov/earthquakes/eventpage/ak20505508/executive


Sent from my iPhone using Tapatalk Pro

schlaugh
2018-Dec-12, 07:33 PM
Well heck! The quake we had today in the South was bigger; 4.4 in Tennessee (and only 9 km down) but it still rattled our walls in Georgia. Go figure.


Sent from my iPhone using Tapatalk Pro

PetersCreek
2018-Dec-12, 07:43 PM
Well heck! The quake we had today in the South was bigger; 4.4 in Tennessee (and only 9 km down) but it still rattled our walls in Georgia. Go figure.

Yeah, we've only had 27 aftershocks or so in the last 7 days that were 3.0M or higher. [Ref: USGS (https://earthquake.usgs.gov/earthquakes/map/#%7B%22autoUpdate%22%3A%5B%5D%2C%22basemap%22%3A%2 2grayscale%22%2C%22feed%22%3A%221544643320543%22%2 C%22listFormat%22%3A%22default%22%2C%22mapposition %22%3A%5B%5B61.206136590479794%2C-150.32936096191406%5D%2C%5B61.49321498638019%2C-149.67018127441406%5D%5D%2C%22overlays%22%3A%5B%22 plates%22%5D%2C%22restrictListToMap%22%3A%5B%22res trictListToMap%22%5D%2C%22search%22%3A%7B%22id%22% 3A%221544643320543%22%2C%22name%22%3A%22Search%20R esults%22%2C%22isSearch%22%3Atrue%2C%22params%22%3 A%7B%22starttime%22%3A%222018-12-05%2000%3A00%3A00%22%2C%22endtime%22%3A%222018-12-12%2023%3A59%3A59%22%2C%22maxlatitude%22%3A61.43%2 C%22minlatitude%22%3A61.239%2C%22maxlongitude%22%3 A-149.884%2C%22minlongitude%22%3A-150.191%2C%22minmagnitude%22%3A3%2C%22orderby%22%3 A%22time%22%7D%7D%2C%22sort%22%3A%22newest%22%2C%2 2timezone%22%3A%22utc%22%2C%22viewModes%22%3A%5B%2 2list%22%2C%22map%22%5D%2C%22event%22%3Anull%7D)] I haven't felt most of them.