Tsunami Generated Alaska region!

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tsunami information statement number 2
nws pacific tsunami warning center ewa beach hi
1146 pm hst fri jan 04 2013

to - civil defense 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 - 1058 pm hst 04 jan 2013
coordinates - 55.3 north 134.9 west
location - southeastern alaska
magnitude - 7.6 moment


measurements or reports of tsunami wave activity

gauge location lat lon time ampl per
------------------- ----- ------ ----- --------------- -----
port alexander ak 56.2n 134.6w 0929z 0.13m / 0.4ft 10min
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.



Evaluation

the west coast and alaska tsunami warning center has issued a
regional tsunami warning and/or watch and/or advisory for other
parts of the pacific located closer to the earthquake. Based on
all available data there is no destructive tsunami threat to
hawaii.

However... Some coastal areas in hawaii could experience small
non-destructive sea level changes and strong or unusual currents
lasting up to several hours. The estimated time such effects
might begin is

0428 am hst sat 05 jan 2013

this will be the only statement issued for this event unless
additional data are received.
 
(CNN) -- A 7.5-magnitude earthquake struck off the coast of Alaska early Saturday morning and a tsunami warning is in effect for portions of British Columbia, Canada, and southern Alaska, officials said.

There were no initial reports of damage but the West Coast and Alaska Tsunami Warning Center said that a "tsunami with significant widespread inundation of is land is expected."

130105095945-alaska-quake-010513-story-top.jpg


The quake struck at about 3:58 a.m. ET off the coast of Alaska about 63 miles west of Craig, a town on Prince of Wales Island, and about 208 miles south of the capital of Juneau, the U.S. Geological Survey said. The size of the temblor was downgraded by the USGS from 7.7 to 7.5.

The tsunami warning was issued for the coastal areas of British Columbia and from the northern tip of Vancouver Island, British Columbia, to Cape Suckling, Alaska, about 75 miles southeast of Cordova, according to a bulletin released by the tsunami warning center.

A tsunami watch was in effect for areas of British Columbia to the Washington-British Columbia border, the bulletin said.

http://edition.cnn.com/2013/01/05/us/alaska-earthquake/index.html?eref=edition&utm_medium=twitter


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