Alaska earthquake: Strong 7.2 quake ROCKS city of Anchorage - Tsunami Warning

Express

The earthquake hit at 5.29pm GMT (8.29am local time) with the epicentre recorded just 12km north of Anchorage. A tsunami warning is in place for large parts of southern Alaska, including coastal areas around the Cook Inlet and the Southern Kenai Peninsula. Those in at-risk areas are urged to evacuate further inland or to higher ground if possible and be prepared to follow instructions from emergency services.

Bloomberg

Anchorage, Alaska (AP) -- A 6.6 magnitude earthquake has rocked buildings in Anchorage and caused lamp posts and trees to sway, prompting people to run out of offices and seek shelter under office desks.

RSOE EDIS / USGS

Quick click for google search of the quake

Video Clip - Youtube

I'm seeing 2 major earthquakes just now close to Anchorage Alaska and a Tsunami Alert.

I just happened to go to the USGS and saw this pop up.

Looks like also a 5.8.

Very scary.

So three? What the hell is going on in Alaska?

a reply to: LSU2018

Maybe it has to do with the wave on 11/11

No tsunami danger:

113
WEHW42 PHEB 301739
TIBHWX
HIZ001>003-005>009-012>014-016>021-023>026-301939-

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
739 AM HST FRI NOV 30 2018

TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII

SUBJECT - TSUNAMI INFORMATION STATEMENT

THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 0729 AM HST 30 NOV 2018
COORDINATES - 61.3 NORTH 149.9 WEST
LOCATION - SOUTHERN ALASKA
MAGNITUDE - 7.0 MOMENT

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO
TSUNAMI THREAT TO HAWAII.

THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED.

Pacific Tsunami Warning Center

Numerous Seismo's went up to 8.1 so a pretty big un!!
KY CUSSO HHZ 00
mb
8.01
0.00
KO MDUB BHZ --
7.91
0.00
KO BNN BHZ --
mb
7.88
0.00

a reply to: Aallanon

Touche!

a reply to: jadedANDcynical

If I'm not mistaken that's for Hawaii. I noticed that in my search as well.
Google shows Tsunami Warning

A TSUNAMI WARNING IS IN EFFECT FOR THE COOK INLET AREA AND SOUTHERN KENAI PENINSULA IN ALASKA

a reply to: TheJesuit

Those would have been auto-located/calculated numbers. Below is a manually calculated result.

GFZ has it at 7.0 from manual calculations:

F-E Region: Southern Alaska
Mw Beach Ball
Time: 2018-11-30 17:29:27.0 UTC
Magnitude: 7.0 (Mw)
Epicenter: 150.07°W 61.44°N Geohack coords
Depth: 35 km
Status: M - manually revised

a reply to: jadedANDcynical

The tsunami warning is for Alaska. That alert says no warning for Hawaii.

a reply to: mockingmay

Yes, for Hawaii, but make note of this portion of the warning:

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED

emphases mine

The news media keeps pushing the magnitude number higher...just like they do with Hurricanes.

Yeah, here is the local warning:

WEAK51 PAAQ 301805
TSUAK1

BULLETIN
Public Tsunami Message Number 2
NWS National Tsunami Warning Center Palmer AK
905 AM AKST Fri Nov 30 2018

UPDATES
-------
* Revised magnitude


...THE TSUNAMI WARNING REMAINS IN EFFECT...


Tsunami Warning in Effect for;

* COASTAL AREAS OF COOK INLET AND SOUTHERN KENAI PENINSULA IN
ALASKA


For other US and Canadian Pacific coasts in North America,
the level of tsunami danger is being evaluated. Further
information will be provided in supplementary messages.

tsunami.gov

My bad.

The earthquake hit at 5.29pm GMT (8.29am local time) If this happened this morning why are we just hearing about it right now???? its 120pm on the east coast????

utc = -5:00 hrs oops

originally posted by: carewemust
The news media keeps pushing the magnitude number higher...just like they do with Hurricanes.

Better for click bait. They don't let a tragedy go to waste. I just heard a girl an office over say, and I quote, "Oh wow, an earthquake just hit Alaska. 6.7 magnitude!" I've heard 7.0, 7.2, and 8.0.

Several aftershocks coming in now, all fairly low magnitude.



USGS

I lived through it!!

It was a hellofa lot stronger than a 7.2M!

I am thinking more like an 8.0 - 8.5 range. Things were knocked off shelves and desks. A 7.0 does not even come closed.

It just kept on building, and building, and building. Then it really started to rock and roll. It went on for a long duration (where is that in the reports?). We have had several strong aftershocks. Electricity is fluctuating across mid-town. My part of the office is the only place that has power!

Building management is doing a walkthrough now. A bunch of people went home to check on damage (I have heard of pictures knocked off the wall, broken panes/glass). All our office windows are intact. Power is coming back to mid-town. Really scared the hell out of the folks new to Anchorage. I had my empty insulated coffee mug, an empty plastic (still in wrapper) water cup fall over, and my empty growler of iced coffee all fall over. My co-worker's monitor fell off the desk.

Epicenter was 10 miles (~6.2 K) north of Anchorage so the folks at JBER/Eagle River/Mat-Su felt it pretty strongly too! Even my half-sister down in Juneau felt it.

I expect the magnitude to go up (first reports were 5.6, then 6.0, then 7.0, now 7.2, but the amount of stuff shaken (shooked??) off shelves and what not, the final report has yet to come in).

Glad we have gotten that out of our system!

We've got members (and a mod, too, I believe) in the Anchorage area, I hope they're ok. That's a big quake, hopefully it was deep enough to not do too much damage

a reply to: TEOTWAWKIAIFF

G'Zus Christ man...
Glad you're ok😨

Reporting from the big 3 seismic organizartions (USGS, EMSC, GFZ) place this between 30 to 40 km depth. That's fairly shallow for an M7 and as a result surface damage would be expected to be in the moderate to severe range. If it were significantly deeper, there would not be near as much shaking at the surface. The shallowness of the quake is what has made for the amount of damage done.

Manual calculations are consistent in the M7 range.

Magnitudes
check Mww

7.0Mag 0.04 Err 61 Stations US 4 Source

USGS