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RagnarokX

Member
Oct 26, 2017
15,782
My mom was living in Crescent City when the 1964 tsunami destroyed most of the town. They packed up their stuff and left town before it hit. That was a 9.3 quake in Alaska.

Stay safe people.
 

Dan

Member
Oct 25, 2017
8,958
Only 4 earthquakes have been registered higher in the richter scale in the continental United States - that puts things in perspective.
 

Orbis

Member
Oct 25, 2017
2,339
UK
I'm not an expert by any means but that reading should prompt anyone in a Warning area to take it very seriously indeed and move to higher ground and/or away from the coast. Those under a watch should keep track of news.

The reading is obviously not always relevant in all directions and how much the wave will increase in height as it approaches coasts will depend on local factors and distance. But it shows that a potentially large tsunami has been generated.
 

Bran Van

Banned
Oct 28, 2017
1,540
Tsunami warnings for zones A, B, C and D of British Columbia coast.

Bc-tsunami-zones.jpg
What does this mean?
 

danowat

Banned
Oct 27, 2017
5,783
It would appear there is no treat to Hawaii.

BULLETIN
TSUNAMI MESSAGE NUMBER 3
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
110 AM HST TUE JAN 23 2018

TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII

SUBJECT - TSUNAMI WATCH CANCELLATION

THE TSUNAMI WATCH IS CANCELLED FOR THE STATE OF HAWAII EFFECTIVE
AT 0110 AM HST.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
NOTE REVISED EARTHQUAKE MAGNITUDE

ORIGIN TIME - 1132 PM HST 22 JAN 2018
COORDINATES - 56.0 NORTH 149.2 WEST
LOCATION - GULF OF ALASKA
MAGNITUDE - 7.9 MOMENT

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
------------------- ----- ------ ----- --------------- -----
DART 46403 52.6N 156.9W 1024Z 0.03M / 0.1FT 08MIN
DART 46410 57.6N 143.8W 1008Z 0.04M / 0.1FT 06MIN
DART 46409 55.3N 148.5W 0944Z 0.12M / 0.4FT 04MIN

LAT - LATITUDE (N-NORTH, S-SOUTH)
LON - LONGITUDE (E-EAST, W-WEST)
TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)
AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).
PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY
ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL
MEASUREMENTS AT SIMILAR LOCATIONS.

EVALUATION

BASED ON ALL AVAILABLE DATA THERE IS NO TSUNAMI THREAT TO THE
STATE OF HAWAII. THEREFORE... THE TSUNAMI WATCH FOR HAWAII IS NOW
CANCELLED.

THIS WILL BE THE FINAL MESSAGE ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED.
 

Tribal_Cult

Banned
Nov 1, 2017
3,548
In how many hours would the tsunami hit? Sometimes I forget how lucky I am for not living in areas where tsunamis, tornados or volcanos can kill me.
 

JonnyDBrit

God and Anime
Member
Oct 25, 2017
11,026
Jesus. I know Alaska isn't exactly densely populated, but most of the people there live on the south coast, don't they?

Hope they get to safety.
 

ahoyhoy

Member
Oct 25, 2017
4,319
Oh my God imagine your town being flooded by freezing cold sea water.

Even if you don't get washed away I imagine a lot of people who get wet might succumb to hypothermia.
 

JonnyDBrit

God and Anime
Member
Oct 25, 2017
11,026
Do the have alarms for this sort of thing?

That's seismologists and buoys are for. The former detect the Earthquake and can figure a Tsunami's coming, the latter helps pin where it is and what size it's at.

And as the Independent's article shows, TV channels and the like will start broadcasting emergency signals.
 

Corporal

Member
Oct 27, 2017
807
Whoa. That's a big one. Hope everything works out for the best, stay safe, everyone. Best of luck to anyone in the affected coastal regions.
 

Bran Van

Banned
Oct 28, 2017
1,540
Another update from the police in Kodiak, where any tsunami would be detected first:
TSUNAMI UPDATE: 0229 hours

Harbor officers report water reciding from our harbor. Citizens should remain in place and wait for further updates.

The Kodiak PD update about water leaving the harbour is the first reliable report about the channel clearing in Alaska. But a number of other reports on social media suggest the same.

If true, that is a worrying sign: the waters move back as the wave gathers, and so a substantial amount of change in sea levels could suggest something large on its way.
 

Deleted member 1849

User requested account closure
Banned
Oct 25, 2017
6,986
Yeah, I was always taught that drawback was the first sign of an incoming Tsunami.

Hope everyone got out.
 

Bran Van

Banned
Oct 28, 2017
1,540
Unofficial on Twitter: users saying the Kodiak channel is drained empty. For reference

Kodiak%2C_View_from_Pillar_Mountain.jpg


Take with grain of salt until official
 

Deleted member 135

User requested account closure
Banned
Oct 25, 2017
11,682
Also with a grain of salt but apparently some of the tsunami buoys were turned off because of the government shutdown and not turned back on yet.