M8.0 - 24km SE of Little Sitkin Island, Alaska 2014-06-23 20:53:10 UTC

[Shiloh]

Source: http://earthquake.usgs.gov/earthquakes/eventpage/usc000rki5#summary

M8.0 - 24km SE of Little Sitkin Island, Alaska 2014-06-23 20:53:10 UTC

Earthquake location 51.797?N, 178.759?EReturn to the EQ List/Map/Search
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Summary
Location and Magnitude contributed by: USGS National Earthquake Information Center
General
+-
30 km
20 mi
Powered by Leaflet
51.797?N, 178.759?E
Depth: 114.4km (71.1mi)
Event Time

2014-06-23 20:53:10 UTC
2014-06-23 11:53:10 UTC-09:00 at epicenter
2014-06-23 16:53:10 UTC-04:00 system time

Location

51.797?N 178.759?E depth=114.4km (71.1mi)
Nearby Cities

24km (15mi) SE of Little Sitkin Island, Alaska
1370km (851mi) E of Petropavlovsk-Kamchatskiy, Russia
1387km (862mi) E of Vilyuchinsk, Russia
1388km (862mi) E of Yelizovo, Russia
2957km (1837mi) W of Whitehorse, Canada

 

[Shiloh]

Re: M8.0 - 24km SE of Little Sitkin Island, Alaska 2014-06-23 20:53:10 UTC

Source: http://www.tsunami.gov/product.php?id=TSUWCA.20140623.2143.003

WEPA41 PAAQ 232143
TSUWCA

BULLETIN
TSUNAMI MESSAGE NUMBER 3
NWS NATIONAL TSUNAMI WARNING CENTER PALMER AK
143 PM AKDT MON JUN 23 2014

AKZ187-195-191-232313-
/O.CON.PAAQ.TS.W.0012.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING NIKOLSKI ALASKA TO ATTU
ALASKA
143 PM AKDT MON JUN 23 2014

...THE TSUNAMI WARNING REMAINS IN EFFECT FOR THE COASTAL
AREAS OF ALASKA FROM NIKOLSKI ALASKA TO ATTU ALASKA...

IF YOU ARE LOCATED IN THIS COASTAL AREA... MOVE INLAND
TO HIGHER GROUND.

TSUNAMI WARNINGS MEAN THAT A TSUNAMI WITH SIGNIFICANT
INUNDATION IS POSSIBLE OR IS ALREADY OCCURRING. TSUNAMIS ARE
A SERIES OF WAVES DANGEROUS MANY HOURS AFTER INITIAL ARRIVAL
TIME. THE FIRST WAVE MAY NOT BE THE LARGEST.

AT 1253 PM ALASKA DAYLIGHT TIME ON JUNE 23 AN EARTHQUAKE WITH
PRELIMINARY MAGNITUDE 8.0 OCCURRED 25 MILES NORTHWEST OF
AMCHITKA ALASKA.

ESTIMATED TSUNAMI START TIMES FOR SELECTED SITES ARE...

SHEMYA ALASKA 124 PM AKDT JUNE 23
ADAK ALASKA 134 PM AKDT JUNE 23
SAINT PAUL ALASKA 304 PM AKDT JUNE 23

THE TSUNAMI WARNING WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.
REFER TO THE INTERNET SITE NTWC.ARH.NOAA.GOV FOR MORE INFORMATION.

$$

AKZ185-232313-
/O.CON.PAAQ.TS.Y.0012.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING UNIMAK PASS ALASKA
/WHICH IS LOCATED 80 MILES NE OF UNALASKA/ TO NIKOLSKI
ALASKA
143 PM AKDT MON JUN 23 2014

...THE TSUNAMI ADVISORY REMAINS IN EFFECT FOR THE COASTAL
AREAS OF ALASKA FROM UNIMAK PASS ALASKA /WHICH IS LOCATED
80 MILES NE OF UNALASKA/ TO NIKOLSKI ALASKA...

IF YOU ARE LOCATED IN THIS COASTAL AREA... MOVE OFF THE
BEACH AND OUT OF HARBORS AND MARINAS.

TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING
STRONG CURRENTS OR WAVES DANGEROUS TO PERSONS IN OR VERY NEAR
THE WATER IS EXPECTED OR IS ALREADY OCCURRING. AREAS IN THE
ADVISORY SHOULD NOT EXPECT WIDESPREAD INUNDATION. TSUNAMIS
ARE A SERIES OF WAVES DANGEROUS MANY HOURS AFTER INITIAL
ARRIVAL TIME. THE FIRST WAVE MAY NOT BE THE LARGEST.

AT 1253 PM ALASKA DAYLIGHT TIME ON JUNE 23 AN EARTHQUAKE WITH
PRELIMINARY MAGNITUDE 8.0 OCCURRED 25 MILES NORTHWEST OF
AMCHITKA ALASKA.

ESTIMATED TSUNAMI START TIMES FOR SELECTED SITES ARE...

UNALASKA ALASKA 243 PM AKDT JUNE 23

THE TSUNAMI ADVISORY WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.
REFER TO THE INTERNET SITE NTWC.ARH.NOAA.GOV FOR MORE INFORMATION.

 

[Shiloh]

Re: M8.0 - 24km SE of Little Sitkin Island, Alaska 2014-06-23 20:53:10 UTC

Source: http://www.tsunami.gov/product.php?id=TSUWCA.20140623.2244.004

TSUWCA

BULLETIN
TSUNAMI MESSAGE NUMBER 4
NWS NATIONAL TSUNAMI WARNING CENTER PALMER AK
244 PM AKDT MON JUN 23 2014

AKZ185-240014-
/O.CON.PAAQ.TS.Y.0012.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING UNIMAK PASS ALASKA
/WHICH IS LOCATED 80 MILES NE OF UNALASKA/ TO NIKOLSKI
ALASKA
244 PM AKDT MON JUN 23 2014

...THE TSUNAMI ADVISORY REMAINS IN EFFECT FOR THE COASTAL
AREAS OF ALASKA FROM UNIMAK PASS ALASKA /WHICH IS LOCATED
80 MILES NE OF UNALASKA/ TO NIKOLSKI ALASKA...

IF YOU ARE LOCATED IN THIS COASTAL AREA... MOVE OFF THE
BEACH AND OUT OF HARBORS AND MARINAS.

TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING
STRONG CURRENTS OR WAVES DANGEROUS TO PERSONS IN OR VERY NEAR
THE WATER IS EXPECTED OR IS ALREADY OCCURRING. AREAS IN THE
ADVISORY SHOULD NOT EXPECT WIDESPREAD INUNDATION. TSUNAMIS
ARE A SERIES OF WAVES DANGEROUS MANY HOURS AFTER INITIAL
ARRIVAL TIME. THE FIRST WAVE MAY NOT BE THE LARGEST.

AT 1253 PM ALASKA DAYLIGHT TIME ON JUNE 23 AN EARTHQUAKE WITH
PRELIMINARY MAGNITUDE 8.0 OCCURRED 25 MILES NORTHWEST OF
AMCHITKA ALASKA.

ESTIMATED TSUNAMI START TIMES FOR SELECTED SITES ARE...

UNALASKA ALASKA 243 PM AKDT JUNE 23

THE TSUNAMI ADVISORY WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.
REFER TO THE INTERNET SITE NTWC.ARH.NOAA.GOV FOR MORE INFORMATION.

$$

AKZ187-195-191-240014-
/O.CAN.PAAQ.TS.W.0012.000000T0000Z-000000T0000Z/
/O.EXA.PAAQ.TS.Y.0012.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING NIKOLSKI ALASKA TO ATTU
ALASKA
244 PM AKDT MON JUN 23 2014

...THE TSUNAMI ADVISORY IS MODIFIED TO INCLUDE THE COASTAL
AREAS OF ALASKA FROM NIKOLSKI ALASKA TO ATTU ALASKA...

IF YOU ARE LOCATED IN THIS COASTAL AREA... MOVE OFF THE
BEACH AND OUT OF HARBORS AND MARINAS.

TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING
STRONG CURRENTS OR WAVES DANGEROUS TO PERSONS IN OR VERY NEAR
THE WATER IS EXPECTED OR IS ALREADY OCCURRING. AREAS IN THE
ADVISORY SHOULD NOT EXPECT WIDESPREAD INUNDATION. TSUNAMIS
ARE A SERIES OF WAVES DANGEROUS MANY HOURS AFTER INITIAL
ARRIVAL TIME. THE FIRST WAVE MAY NOT BE THE LARGEST.

AT 1253 PM ALASKA DAYLIGHT TIME ON JUNE 23 AN EARTHQUAKE WITH
PRELIMINARY MAGNITUDE 8.0 OCCURRED 25 MILES NORTHWEST OF
AMCHITKA ALASKA.

ESTIMATED TSUNAMI START TIMES FOR SELECTED SITES ARE...

SAINT PAUL ALASKA 304 PM AKDT JUNE 23

THE TSUNAMI ADVISORY WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.
REFER TO THE INTERNET SITE NTWC.ARH.NOAA.GOV FOR MORE INFORMATION.

 

[Shiloh]

Re: M8.0 - 24km SE of Little Sitkin Island, Alaska 2014-06-23 20:53:10 UTC

Source: http://www.tsunami.gov/product.php?id=TSUAK1.20140623.2244.004

TSUAK1

BULLETIN
PUBLIC TSUNAMI MESSAGE NUMBER 4
NWS NATIONAL TSUNAMI WARNING CENTER PALMER AK
244 PM AKDT MON JUN 23 2014

UPDATES IN THIS MESSAGE INCLUDE MODIFIED ALERT AREAS.
UPDATES IN THIS MESSAGE INCLUDE NEW OBSERVATIONS.
UPDATES IN THIS MESSAGE INCLUDE REVISED FORECAST INFORMATION.

...THE TSUNAMI ADVISORY REMAINS IN EFFECT...


WARNINGS/ADVISORIES/WATCHES - UPDATED
-------------------------------------

TSUNAMI ADVISORY IN EFFECT FOR...

* THE COASTAL AREAS OF ALASKA FROM UNIMAK PASS ALASKA /WHICH
IS LOCATED 80 MILES NE OF UNALASKA/ TO NIKOLSKI ALASKA

* THE COASTAL AREAS OF ALASKA FROM NIKOLSKI ALASKA TO ATTU
ALASKA

* FOR OTHER US AND CANADIAN PACIFIC COASTS IN NORTH AMERICA -
THIS IS FOR INFORMATION ONLY.


IMPACTS FOR TSUNAMI ADVISORY AREAS
----------------------------------
* A TSUNAMI CAPABLE OF PRODUCING STRONG CURRENTS OR WAVES DANGEROUS
TO PERSONS IN OR VERY NEAR THE WATER IS EXPECTED.

* CURRENTS MAY BE HAZARDOUS TO SWIMMERS... BOATS... AND COASTAL
STRUCTURES AND MAY CONTINUE FOR MANY HOURS AFTER THE TSUNAMI
ARRIVAL.

* THE FIRST WAVE MAY NOT BE THE LARGEST.


RECOMMENDED ACTIONS - UPDATED
-----------------------------
* IF YOU ARE IN AN ADVISORY AREA - MOVE OFF THE BEACH AND OUT OF
HARBORS AND MARINAS. WIDESPREAD INUNDATION OF LAND IS NOT
EXPECTED FOR ADVISORY AREAS.

* BE ALERT TO INSTRUCTIONS FROM YOUR LOCAL EMERGENCY OFFICIALS.

* DO NOT GO TO THE COAST TO OBSERVE THE TSUNAMI.

* DO NOT RETURN TO THE COAST UNTIL LOCAL EMERGENCY OFFICIALS
INDICATE IT IS SAFE TO DO SO.


FORECASTS AND/OR OBSERVATIONS OF TSUNAMI ACTIVITY
-------------------------------------------------
FORECAST FORECAST FORECAST OBSERVED
START OF TSUNAMI MAX TSUNAMI MAX TSUNAMI
SITE OF TSUNAMI DURATION HEIGHT HEIGHT
---- ---------- -------- ------------- -------

* ALASKA
UNALASKA 1443 AKDT JUN 23 LESS THAN 1FT
SAINT PAUL 1504 AKDT JUN 23 LESS THAN 1FT

FORECAST MAX TSUNAMI HEIGHT IS THE HIGHEST EXPECTED WATER LEVEL
ABOVE THE TIDE.

FORECAST TSUNAMI DURATION IS THE APPROXIMATE LENGTH OF TIME WHICH
THE TSUNAMI MAY PRODUCE DANGEROUS CURRENTS AND WAVE ACTIVITY.

OBSERVED MAX TSUNAMI HEIGHT IS THE HIGHEST RECORDED WATER LEVEL
ABOVE THE TIDE LEVEL UP TO THIS POINT.


ADDITIONAL OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
-----------------------------------------------------
TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- --------------- --------------
AMCHITKA AK 2129 UTC 06-23 00.6FT
SHEMYA AK 2152 UTC 06-23 00.2FT
ADAK AK 2202 UTC 06-23 00.2FT

HEIGHT - OBSERVED MAX TSUNAMI HEIGHT IS THE WATER LEVEL ABOVE THE
TIDE LEVEL AT THE TIME OF MEASUREMENT.


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
* MAGNITUDE 8.0
* ORIGIN TIME 1253 AKDT JUN 23 2014
1353 PDT JUN 23 2014
2053 UTC JUN 23 2014
* COORDINATES 51.8 NORTH 178.7 EAST
* DEPTH 68 MILES
* LOCATION 25 MILES NW OF AMCHITKA ALASKA
195 MILES W OF ADAK ALASKA


NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------
* THIS MESSAGE WILL BE UPDATED WITHIN 60 MINUTES.

* REFER TO THE INTERNET SITE NTWC.ARH.NOAA.GOV FOR MORE
INFORMATION.

* PACIFIC COASTAL RESIDENTS OUTSIDE CALIFORNIA... OREGON...
WASHINGTON... BRITISH COLUMBIA AND ALASKA SHOULD REFER TO THE
PACIFIC TSUNAMI WARNING CENTER MESSAGES AT PTWC.WEATHER.GOV.

 

[Shiloh]

Re: M8.0 - 24km SE of Little Sitkin Island, Alaska 2014-06-23 20:53:10 UTC

Source: http://www.tsunami.gov/product.php?id=TSUWCA.20140623.2345.005

TSUWCA

BULLETIN
TSUNAMI MESSAGE NUMBER 5
NWS NATIONAL TSUNAMI WARNING CENTER PALMER AK
345 PM AKDT MON JUN 23 2014

AKZ185-240115-
/O.CAN.PAAQ.TS.Y.0012.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING UNIMAK PASS ALASKA
/WHICH IS LOCATED 80 MILES NE OF UNALASKA/ TO NIKOLSKI
ALASKA
345 PM AKDT MON JUN 23 2014

...THE TSUNAMI ADVISORY IS CANCELED FOR THE COASTAL AREAS
OF ALASKA FROM UNIMAK PASS ALASKA /WHICH IS LOCATED 80
MILES NE OF UNALASKA/ TO NIKOLSKI ALASKA...

A TSUNAMI WAS GENERATED BY THIS EVENT BUT DOES NOT POSE A THREAT
TO THESE AREAS. SOME AREAS MAY SEE SMALL SEA LEVEL CHANGES.
THE DECISION TO RE-OCCUPY HAZARD ZONES MUST BE MADE BY LOCAL
AUTHORITIES.

THIS WILL BE THE FINAL U.S. NATIONAL TSUNAMI WARNING CENTER
MESSAGE FOR THIS REGION. REFER TO THE INTERNET SITE
NTWC.ARH.NOAA.GOV FOR MORE INFORMATION.

$$

AKZ187-195-191-240115-
/O.CON.PAAQ.TS.Y.0012.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING NIKOLSKI ALASKA TO ATTU
ALASKA
345 PM AKDT MON JUN 23 2014

...THE TSUNAMI ADVISORY REMAINS IN EFFECT FOR THE COASTAL
AREAS OF ALASKA FROM NIKOLSKI ALASKA TO ATTU ALASKA...

IF YOU ARE LOCATED IN THIS COASTAL AREA... MOVE OFF THE
BEACH AND OUT OF HARBORS AND MARINAS.

TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING
STRONG CURRENTS OR WAVES DANGEROUS TO PERSONS IN OR VERY NEAR
THE WATER IS EXPECTED OR IS ALREADY OCCURRING. AREAS IN THE
ADVISORY SHOULD NOT EXPECT WIDESPREAD INUNDATION. TSUNAMIS
ARE A SERIES OF WAVES DANGEROUS MANY HOURS AFTER INITIAL
ARRIVAL TIME. THE FIRST WAVE MAY NOT BE THE LARGEST.

AT 1253 PM ALASKA DAYLIGHT TIME ON JUNE 23 AN EARTHQUAKE WITH
PRELIMINARY MAGNITUDE 8.0 OCCURRED 25 MILES NORTHWEST OF
AMCHITKA ALASKA.

ESTIMATED TSUNAMI START TIMES FOR SELECTED SITES ARE...

SAINT PAUL ALASKA 304 PM AKDT JUNE 23

THE TSUNAMI ADVISORY WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.
REFER TO THE INTERNET SITE NTWC.ARH.NOAA.GOV FOR MORE INFORMATION.

 

[Pathfinder]

Re: M8.0 - 24km SE of Little Sitkin Island, Alaska 2014-06-23 20:53:10 UTC

Major quake hits off Alaska's Aleutian Islands

Source: Reuters - Mon, 23 Jun 2014 23:30 GMT
Author: Reuters
By Steve Quinn

JUNEAU, Alaska, June 23 (Reuters) - A magnitude 8.0 earthquake struck deep under the ocean floor near Alaska's Aleutian Islands, triggering shaking that could be felt for vast distances and prompting a tsunami warning, the U.S. Geological Survey and National Tsunami Warning Center said.

The tsunami warning, later downgraded to an advisory, prompted the evacuation of about 150 residents of the town of Adak to higher ground, according to media reports. It was not immediately clear whether the quake caused injuries or damage.

The quake was so large and deep that it triggered dozens of aftershocks within an hour and prompted enough shaking that it will be picked up by seismometers around the world over the next 24 hours, said Mike West, a seismologist who serves as director of the Alaska Earthquake Center.

"When you've got an earthquake that big, it rings the Earth like a bell," West said.
...
http://www.trust.org/item/20140623232656-trce4

 

[Pathfinder]

Re: M8.0 - 24km SE of Little Sitkin Island, Alaska 2014-06-23 20:53:10 UTC

Magnitude-8.0 Alaska Quake Spawns Small Tsunami

ANCHORAGE, Alaska ? Jun 23, 2014, 5:26 PM
By MARK THIESSEN Associated Press

A strong earthquake near Alaska's Aleutian Islands triggered a tsunami warning Monday, but only small waves measuring several inches hit coastal communities.

The National Tsunami Warning Center, which initially issued a warning that significant inundation was possible, kept advisories in place for parts of the sparsely populated islands, saying conditions could be dangerous to people near the water.

"There could be strong currents, but still stay away from the beach," said Dave Nyland, a geophysicist at the warning center.
...
There were no reports of damage, said Jeremy Zidek, a spokesman for the Alaska Department of Homeland Security and Emergency Management.

Residents in some communities like Adak, which were first in line for the tsunami, did evacuate.
...
About 200 miles west, a tsunami wave of about 7 inches was reported at Amchitka Island, Zidek said. They wave diminished the further it traveled, reaching only a couple of inches at Adak and Shemya.

Full text:
http://abcnews.go.com/US/wireStory/tsunami-warning-issued-alaska-quake-24271171