Tsunami Watch for Hawaii – cancelled

From CNN An earthquake with a magnitude of 7.9 struck in the Samoan Islands region Tuesday, the U.S. Geological Survey said.

Samoan_earthquake

The temblor generated a nearly 10-foot (3-meter) tsunami — measured from crest to trough — according to preliminary data, said Chip McCreery, the director of the Pacific Tsunami Warning Center in Ewa Beach, Hawaii.

BULLETIN

TSUNAMI MESSAGE NUMBER 2

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

857 AM HST TUE SEP 29 2009

TO – CIVIL DEFENSE IN THE STATE OF HAWAII

SUBJECT – TSUNAMI WATCH SUPPLEMENT

A TSUNAMI WATCH CONTINUES IN EFFECT FOR THE STATE OF HAWAII.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

NOTE MOMENT MAGNITUDE INCREASE TO 8.3

ORIGIN TIME – 0748 AM HST 29 SEP 2009

COORDINATES – 15.3 SOUTH 171.0 WEST

LOCATION – SAMOA ISLANDS REGION

MAGNITUDE – 8.3 MOMENT

MAGNITUDE – 8.0 RICHTER (MS)

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER

——————- —– —— —– ————— —–

APIA UPOLU WS 13.8S 171.8W 1832Z 0.70M / 2.3FT 08MIN

PAGO PAGO AS 14.3S 170.7W 1812Z 1.57M / 5.1FT 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.

EVALUATION

BASED ON ALL AVAILABLE DATA A TSUNAMI MAY HAVE BEEN GENERATED BY

THIS EARTHQUAKE THAT COULD BE DESTRUCTIVE ON COASTAL AREAS EVEN

FAR FROM THE EPICENTER. AN INVESTIGATION IS UNDERWAY TO DETERMINE

IF THERE IS A TSUNAMI THREAT TO HAWAII.

IF TSUNAMI WAVES IMPACT HAWAII THE ESTIMATED EARLIEST ARRIVAL OF

THE FIRST TSUNAMI WAVE IS

0111 PM HST TUE 29 SEP 2009

MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT.

h/t to Hotrod “Larry”

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48 thoughts on “Tsunami Watch for Hawaii – cancelled

  1. Who is being blamed for this?
    Seriously, I will examine the ring of fire. There is a lot of Pacific rim tectonic plate activity. These events also can cause vents to heat water.

  2. I think the DTG should be 0111HST on 30 Sept. Otherwise it is an exceptionally fast wave. Where is the sarcasm tab?
    Tim

  3. UPGRADED to an 8.3 by the LISS server team. Looking at the LISS strips, I’d definitely say (from years of watching the world’s earthquakes BTW) that it was no 7.9. The whole globe is presently “ringing”, just as with the 9.x at Banda Aceh.
    However, the size of the seism, coupled with the distance, doesn’t bode for a very large tsunami in Hawaii. Maybe a foot or two. No significant underwater focussing aspects, and a great wide ocean over which to radiate and dissipate.

  4. Ron de Haan (12:59:21) :
    A Tsunami Warming for Hawaii only?

    When it first came out the Tsunami warning center was getting pounded and attempts to download the alerts from :
    http://www.prh.noaa.gov/ptwc/
    Were all timing out, I finally got the alert for Hawaii and the upgrade of intensity to 8.3 to load so that is only a representative alert of those available, so Anthony could get the lat long info and timing.
    There are certainly other coast lines at risk as any coast in the Pacific basin could be effected to some degree depending on its distance from the epicenter and local sea floor profiles.
    Larry

  5. Why is it, that this fine site, providing the incredibly important work of Steve McIntyre debunking the JUNK science of Michael Mann and the other HACKS at the IPCC, is being POLLUTED my these adds ??????
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  6. Response time at http://www.prh.noaa.gov/ptwc/
    Is getting better now:
    TSUNAMI BULLETIN NUMBER 002
    PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
    ISSUED AT 1856Z 29 SEP 2009
    THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC
    OCEAN AND ADJACENT SEAS…EXCEPT ALASKA…BRITISH COLUMBIA…
    WASHINGTON…OREGON AND CALIFORNIA.
    … A TSUNAMI WARNING AND WATCH ARE IN EFFECT …
    A TSUNAMI WARNING IS IN EFFECT FOR
    AMERICAN SAMOA / SAMOA / NIUE / WALLIS-FUTUNA / TOKELAU /
    COOK ISLANDS / TONGA / TUVALU / KIRIBATI / KERMADEC IS / FIJI /
    HOWLAND-BAKER / JARVIS IS. / NEW ZEALAND / FR. POLYNESIA /
    PALMYRA IS. / VANUATU / NAURU / MARSHALL IS. / SOLOMON IS.
    A TSUNAMI WATCH IS IN EFFECT FOR
    JOHNSTON IS. / NEW CALEDONIA / KOSRAE / PAPUA NEW GUINEA /
    HAWAII / POHNPEI / WAKE IS. / PITCAIRN / MIDWAY IS. / CHUUK /
    AUSTRALIA
    FOR ALL OTHER AREAS COVERED BY THIS BULLETIN… IT IS FOR
    INFORMATION ONLY AT THIS TIME.
    THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY
    NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE
    DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND
    ANY ACTIONS TO BE TAKEN IN RESPONSE.
    AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
    NOTE THE MAGNITUDE UPGRADE TO 8.3
    ORIGIN TIME – 1748Z 29 SEP 2009
    COORDINATES – 15.3 SOUTH 171.0 WEST
    DEPTH – 33 KM
    LOCATION – SAMOA ISLANDS REGION
    MAGNITUDE – 8.3
    MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY
    GAUGE LOCATION LAT LON TIME AMPL PER
    ——————- —– —— —– ————— —–
    APIA UPOLU WS 13.8S 171.8W 1832Z 0.70M / 2.3FT 08MIN
    PAGO PAGO AS 14.3S 170.7W 1812Z 1.57M / 5.1FT 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.
    EVALUATION
    SEA LEVEL READINGS INDICATE A TSUNAMI WAS GENERATED. IT MAY HAVE
    BEEN DESTRUCTIVE ALONG COASTS NEAR THE EARTHQUAKE EPICENTER AND
    COULD ALSO BE A THREAT TO MORE DISTANT COASTS. AUTHORITIES SHOULD
    TAKE APPROPRIATE ACTION IN RESPONSE TO THIS POSSIBILITY. THIS
    CENTER WILL CONTINUE TO MONITOR SEA LEVEL DATA TO DETERMINE THE
    EXTENT AND SEVERITY OF THE THREAT.
    FOR ALL AREAS – WHEN NO MAJOR WAVES ARE OBSERVED FOR TWO HOURS
    AFTER THE ESTIMATED TIME OF ARRIVAL OR DAMAGING WAVES HAVE NOT
    OCCURRED FOR AT LEAST TWO HOURS THEN LOCAL AUTHORITIES CAN ASSUME
    THE THREAT IS PASSED. DANGER TO BOATS AND COASTAL STRUCTURES CAN
    CONTINUE FOR SEVERAL HOURS DUE TO RAPID CURRENTS. AS LOCAL
    CONDITIONS CAN CAUSE A WIDE VARIATION IN TSUNAMI WAVE ACTION THE
    ALL CLEAR DETERMINATION MUST BE MADE BY LOCAL AUTHORITIES.
    ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTS
    WITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUAL
    ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE
    LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN
    SUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR.
    LOCATION FORECAST POINT COORDINATES ARRIVAL TIME
    ——————————– ———— ————
    AMERICAN SAMOA PAGO PAGO 14.3S 170.7W 1759Z 29 SEP
    SAMOA APIA 13.8S 171.8W 1810Z 29 SEP
    NIUE NIUE IS. 19.0S 170.0W 1822Z 29 SEP
    WALLIS-FUTUNA WALLIS IS. 13.2S 176.2W 1835Z 29 SEP
    TOKELAU NUKUNONU IS. 9.2S 171.8W 1844Z 29 SEP
    COOK ISLANDS PUKAPUKA IS. 10.8S 165.9W 1846Z 29 SEP
    RAROTONGA 21.2S 159.8W 1929Z 29 SEP
    PENRYN IS. 8.9S 157.8W 1954Z 29 SEP
    TONGA NUKUALOFA 21.0S 175.2W 1851Z 29 SEP
    TUVALU FUNAFUTI IS. 7.9S 178.5E 1932Z 29 SEP
    KIRIBATI KANTON IS. 2.8S 171.7W 1935Z 29 SEP
    FLINT IS. 11.4S 151.8W 2025Z 29 SEP
    MALDEN IS. 3.9S 154.9W 2037Z 29 SEP
    CHRISTMAS IS. 2.0N 157.5W 2100Z 29 SEP
    TARAWA IS. 1.5N 173.0E 2104Z 29 SEP
    KERMADEC IS RAOUL IS. 29.2S 177.9W 1938Z 29 SEP
    FIJI SUVA 18.1S 178.4E 2003Z 29 SEP
    HOWLAND-BAKER HOWLAND IS. 0.6N 176.6W 2008Z 29 SEP
    JARVIS IS. JARVIS IS. 0.4S 160.1W 2028Z 29 SEP
    NEW ZEALAND EAST CAPE 37.7S 178.5E 2044Z 29 SEP
    GISBORNE 38.7S 178.0E 2100Z 29 SEP
    NORTH CAPE 34.4S 173.3E 2112Z 29 SEP
    NAPIER 39.5S 176.9E 2140Z 29 SEP
    WELLINGTON 41.3S 174.8E 2150Z 29 SEP
    AUCKLAND(E) 36.7S 175.0E 2212Z 29 SEP
    AUCKLAND(W) 37.1S 174.2E 2239Z 29 SEP
    LYTTELTON 43.6S 172.7E 2255Z 29 SEP
    NEW PLYMOUTH 39.1S 174.1E 2317Z 29 SEP
    NELSON 41.3S 173.3E 2323Z 29 SEP
    DUNEDIN 45.9S 170.5E 2331Z 29 SEP
    MILFORD SOUND 44.6S 167.9E 2358Z 29 SEP
    WESTPORT 41.8S 171.6E 2359Z 29 SEP
    BLUFF 46.6S 168.3E 0044Z 30 SEP
    FR. POLYNESIA PAPEETE 17.5S 149.6W 2045Z 29 SEP
    HIVA OA 10.0S 139.0W 2214Z 29 SEP
    RIKITEA 23.1S 135.0W 2247Z 29 SEP
    PALMYRA IS. PALMYRA IS. 6.3N 162.4W 2102Z 29 SEP
    VANUATU ANATOM IS. 20.2S 169.9E 2117Z 29 SEP
    ESPERITU SANTO 15.1S 167.3E 2123Z 29 SEP
    NAURU NAURU 0.5S 166.9E 2138Z 29 SEP
    MARSHALL IS. MAJURO 7.1N 171.4E 2147Z 29 SEP
    KWAJALEIN 8.7N 167.7E 2220Z 29 SEP
    ENIWETOK 11.4N 162.3E 2309Z 29 SEP
    SOLOMON IS. KIRAKIRA 10.4S 161.9E 2155Z 29 SEP
    GHATERE 7.8S 159.2E 2227Z 29 SEP
    AUKI 8.8S 160.6E 2244Z 29 SEP
    HONIARA 9.3S 160.0E 2244Z 29 SEP
    PANGGOE 6.9S 157.2E 2245Z 29 SEP
    MUNDA 8.4S 157.2E 2248Z 29 SEP
    FALAMAE 7.4S 155.6E 2304Z 29 SEP
    JOHNSTON IS. JOHNSTON IS. 16.7N 169.5W 2212Z 29 SEP
    NEW CALEDONIA NOUMEA 22.3S 166.5E 2216Z 29 SEP
    KOSRAE KOSRAE IS. 5.5N 163.0E 2233Z 29 SEP
    PAPUA NEW GUINE KIETA 6.1S 155.6E 2303Z 29 SEP
    AMUN 6.0S 154.7E 2323Z 29 SEP
    RABAUL 4.2S 152.3E 2349Z 29 SEP
    LAE 6.8S 147.0E 0015Z 30 SEP
    KAVIENG 2.5S 150.7E 0016Z 30 SEP
    PORT MORESBY 9.3S 146.9E 0039Z 30 SEP
    MADANG 5.2S 145.8E 0041Z 30 SEP
    MANUS IS. 2.0S 147.5E 0050Z 30 SEP
    HAWAII NAWILIWILI 22.0N 159.4W 2311Z 29 SEP
    HILO 19.7N 155.1W 2314Z 29 SEP
    HONOLULU 21.3N 157.9W 2315Z 29 SEP
    POHNPEI POHNPEI IS. 7.0N 158.2E 2318Z 29 SEP
    WAKE IS. WAKE IS. 19.3N 166.6E 2322Z 29 SEP
    PITCAIRN PITCAIRN IS. 25.1S 130.1W 2329Z 29 SEP
    MIDWAY IS. MIDWAY IS. 28.2N 177.4W 2349Z 29 SEP
    CHUUK CHUUK IS. 7.4N 151.8E 0020Z 30 SEP
    AUSTRALIA BRISBANE 27.2S 153.3E 0036Z 30 SEP
    SYDNEY 33.9S 151.4E 0038Z 30 SEP
    BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT.
    THE TSUNAMI WARNING AND WATCH WILL REMAIN IN EFFECT UNTIL
    FURTHER NOTICE.
    THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS
    FOR ALASKA…BRITISH COLUMBIA…WASHINGTON…OREGON…CALIFORNIA.
    Larry

  7. Maybe I’m missing something, but as of when I’m posting this I’ve not seen any warning for Hawaii, just a watch. NZ and other areas are getting a warning.

  8. Typical, first they say it’s a 7.9, and now they change it to an 8.3.
    These scientists always fudging their data. What is the ‘correct’ value going to be?
    Hope everyone affected gets to a safe spot.

  9. In what scale are the waves being blocked by land mass? importend question. Because the waves could be blocked by samoa and there for not going to hawaii.

  10. Tim Trice (13:22:42) :
    Much shallower water on way to Aus.
    jeroen (13:46:49)
    Not ‘blocked” at all to Hawaii. Samoa not on direct line and MUCH too small to do blocking of such a long wave-length.
    I’m going to go to an unsafe location in Waitemata harbour to observe. I predict undetectable effect.

  11. Ray (14:18:03) :
    Why the temperature does not show in the wave propagation equation above?
    Maybe because the density of water doesn’t change significantly? Just a guess. Viscosity is also irrelevant for water gravity waves with wave-lengths so long.

  12. GoatGuy (13:05:57) :
    UPGRADED to an 8.3 by the LISS server team. Looking at the LISS strips, I’d definitely say (from years of watching the world’s earthquakes BTW) that it was no 7.9. The whole globe is presently “ringing”, just as with the 9.x at Banda Aceh.
    However, the size of the seism, coupled with the distance, doesn’t bode for a very large tsunami in Hawaii. Maybe a foot or two. No significant underwater focussing aspects, and a great wide ocean over which to radiate and dissipate.

    Those factors didn’t prevent the Hilo tsunami in 1960 from causing fatalities!

  13. Jeremy (14:36:27) :
    “Anthony… Senate Bill calls for stronger cuts in emissions than House bill.
    http://www.latimes.com/news/nationworld/nation/la-na-climate30-2009sep30,0,128921.story
    Can they really pass crap like this when a majority of Americans really don’t agree?”
    Jeremy, it’s a Senate Bill and I don’t think it will make it.
    But don’t take any risk, keep calling those Senators and send them all the (F) Documents that have emerged lately.
    Our case is getting stronger by the day.
    The more outright lies the Media put out, the weaker their basis will be.
    In a discussion to day we had the paper articles about melting Arctic and melting Antarctic at hand.
    I only showed the current sea ice extent graphs to make the convincing argument.
    Facts don’t lie and lies never become facts.

  14. Some might notice that New Zealand with a population of over twice that of Hawaii is much closer to the earthquake and has also been given a warning, but headlines here are Hawaii (New Zealand is a country in the South Pacific).

  15. Tsunami warning it out for the city I live in, I will be watching from the window keenly to see if anything happens (view of coastal flats below) but I have predicted nothing will happen!

  16. OT
    Increased solar brightness and warming of the Earth since 1979
    The sun may have increased in brightness over the last couple of decades as summarized in the following press release:
    Researcher Finds Solar Trend That Can Warm Climate
    Ends debate over whether sun can play a role in climate change
    [snip, dude just post a link mkay? ~ctm]
    http://www.warwickhughes.com/hoyt/solar.htm

  17. Just heard the update from NOAA on NPR. Downgraded to advisory; stay outta the water ’til this evening. Guess I’ll be able to finish my luau stew with lomi salmon.

  18. There seems to be some confusion about the terms “watch” and “warning”. I believe these terms are defined the same as in the meteorological world, that is a “watch” means that conditions are favourable for the event to occur, but it hasn’t happened yet. A “warming” means that the event has been observed and may be on it’s way to your location.

  19. The tsunami only measured 20cm by the time it hit us in New Zealand.
    Earthquake uprated to 8.3 though – and Samoa sounds like it has been hit very hard. Fingers crossed there hasn’t been too much destruction.

  20. Bulaman (14:56:21) :
    Reporting 400 mm or 16 inches in NZ

    400 mm in 3 hours, so at this rate NZ will be under 100 m in 31.25 days!

  21. The first time I opened the Yellow Pages in Honolulu and read the Civil Defense instructions I was amazed at how much planning had been done. Then early one morning in 1992 we got the hurricane warning for Iniki and headed for high ground and I was grateful.
    Much better to have the emergency preps done and not to need them, than the other way around.
    A tip of the hat to all Civil Defense and Emergency Response folks. Most of us have no idea how much we might need you.

  22. F Rasmin (15:25:28) :
    Some might notice that New Zealand with a population of over twice that of Hawaii is much closer to the earthquake and has also been given a warning, but headlines here are Hawaii (New Zealand is a country in the South Pacific).

    CNN(American)+Geography=FAIL

  23. Now. 7.6 Mag off Padang, West Sumatera Indonesia. Large buildings down, communication lost with the city. Fires Raging. In progress as we write this.

  24. The big flipside, particularly evident in Thomas-Rasset, is that the legal mechanisms appear to be in place now for corporate copyright holders to exercise a power way beyond the spirit of the rights they are defending, and possibly even against the interests of their own artists if anger against their policies continues and spreads. ,

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