{"id":279,"date":"2007-01-13T09:41:30","date_gmt":"2007-01-13T17:41:30","guid":{"rendered":"http:\/\/www.montaraventures.com\/blog\/?p=279"},"modified":"2007-12-04T09:08:58","modified_gmt":"2007-12-04T17:08:58","slug":"tsunami-system-update","status":"publish","type":"post","link":"https:\/\/montaraventures.com\/blog\/2007\/01\/13\/tsunami-system-update\/","title":{"rendered":"Tsunami System Update"},"content":{"rendered":"

As I wrote about a couple of months ago<\/a>, NOAA<\/a> has created an automated tsunami warning system. Last night about 8:45 PST, I got a series of emails about a tsunami warning that went into effect because of a magnitude 8.2 earthquake east of the Kiril Islands<\/a> east of Russia and north of Japan. Here’s an exercept from the warning:<\/p>\n

\nNWS WEST COAST\/ALASKA TSUNAMI WARNING CENTER PALMER AK
\n833 PM PST FRI JAN 12 2007<\/p>\n

…A TSUNAMI WARNING IS IN EFFECT WHICH INCLUDES THE ALASKA
\n COASTAL AREAS FROM NIKOLSKI ALASKA TO ATTU ALASKA…<\/p>\n

…A TSUNAMI WATCH IS IN EFFECT FOR THE ALASKA COASTAL
\n AREAS FROM SEWARD ALASKA TO NIKOLSKI ALASKA…<\/p>\n

…AT THIS TIME THIS MESSAGE IS ADVISORY ONLY FOR OTHER
\n AREAS OF CALIFORNIA – OREGON – WASHINGTON – BRITISH
\n COLUMBIA – AND ALASKA…<\/p>\n

A TSUNAMI WARNING MEANS… ALL COASTAL RESIDENTS IN THE WARNING
\nAREA WHO ARE NEAR THE BEACH OR IN LOW-LYING REGIONS SHOULD MOVE
\nIMMEDIATELY INLAND TO HIGHER GROUND AND AWAY FROM ALL HARBORS AND
\nINLETS INCLUDING THOSE SHELTERED DIRECTLY FROM THE SEA. THOSE
\nFEELING THE EARTH SHAKE… SEEING UNUSUAL WAVE ACTION… OR THE
\nWATER LEVEL RISING OR RECEDING MAY HAVE ONLY A FEW MINUTES BEFORE
\nTHE TSUNAMI ARRIVAL AND SHOULD EVACUATE IMMEDIATELY. HOMES AND
\nSMALL BUILDINGS ARE NOT DESIGNED TO WITHSTAND TSUNAMI IMPACTS.
\nDO NOT STAY IN THESE STRUCTURES.\n<\/p><\/blockquote>\n

This was followed by several more messages each with more specific information. It was pretty cool really to see all of this unfold and before it was something I would have been blissfully unaware of until reading a news post about it the following day.
\n
\nThe final message gave alot of very specific information about the event, observed wave heights, travel time, earthquake locale, etc. It’s posted below:<\/p>\n

\n…KURIL ISLAND EVENT OBSERVED TSUNAMI HEIGHTS…<\/p>\n

THIS BULLETIN IS BEING ISSUED TO PROVIDE SEA LEVEL OBSERVATIONS
\nPRODUCED BY THE JANUARY 13 0423Z KURIL ISLAND TSUNAMI.<\/p>\n

NO – REPEAT NO – WATCH OR WARNING IS IN EFFECT FOR ALASKA –
\nBRITISH COLUMBIA – WASHINGTON – OREGON OR CALIFORNIA.<\/p>\n

A TSUNAMI HAS BEEN OBSERVED AT THE FOLLOWING SITES
\n HANASAKI JAPAN 0.1M\/0.3FT
\n SHEMYA ALASKA 0.32M\/1.0FT
\n ADAK ALASKA 0.04M\/0.1FT
\n DUTCH HARBOR ALASKA 0.06M\/0.2FT
\n MIDWAY I. 0.18M\/0.6FT
\n HILO HAWAII 0.12M\/0.4FT
\n KAHULUI HAWAII 0.17M\/0.6FT
\n NAWILIWILI HAWAII 0.09M\/0.3FT
\n WAKE I. 0.09M\/0.3FT
\nWAVE OBSERVATIONS ARE THE AMPLITUDE ABOVE SEA LEVEL.<\/p>\n

EVALUATION
\n BASED ON THE LOCATION – MAGNITUDE – TSUNAMI MODELS AND OBSERVED
\n TSUNAMI HEIGHTS THE EARTHQUAKE WAS NOT SUFFICIENT TO GENERATE A
\n TSUNAMI WHICH WILL INUNDATE COASTAL REGIONS IN CALIFORNIA\/ OREGON\/
\n WASHINGTON\/ BRITISH COLUMBIA OR ALASKA. HOWEVER A
\n TSUNAMI CAPABLE OF PRODUCING DANGEROUS CURRENTS AND SURGES IN
\n HARBORS AND BAYS MAY BE OBSERVED IN SOME AREAS OF THE COAST.
\n WAVE HEIGHTS AND CURRENTS ARE AMPLITFIED BY IRREGULAR
\n SHORELINE AND ARE DIFFICULT TO PREDICT. THE INITIAL
\n WAVE MAY NOT BE THE LARGEST AND THE THREAT MAY CONTINUE FOR
\n SEVERAL HOURS.<\/p>\n

WHEN NO SIGNIFICANT WAVES HAVE BEEN OBSERVED FOR TWO HOURS AFTER
\n THE ESTIMATED TIME OF ARRIVAL OR DAMAGING WAVES HAVE NOT OCCURRED
\n FOR AT LEAST TWO HOURS LOCAL AUTHORITIES CAN ASSUME THE THREAT IS
\n PASSED. <\/p>\n

PRELIMINARY EARTHQUAKE PARAMETERS
\n MAGNITUDE – 8.2
\n TIME – 1924 AKST JAN 12 2007
\n 2024 PST JAN 12 2007
\n 0424 UTC JAN 13 2007
\n LOCATION – 46.7 NORTH 154.4 EAST
\n – EAST OF KURIL ISLANDS
\n DEPTH – 14 MILES\/23 KM<\/p>\n

SELECTED TSUNAMI ARRIVAL TIMES FOR INFORMATION AND REFERENCE ONLY.
\nTHESE TIMES DO NOT INDICATE A DESTRUCTIVE TSUNAMI IS EXPECTED.
\nNEAH BAY-WA 0433 PST JAN 13 TOFINO-BC 0321 AKST JAN 13
\nCRESCENT CITY-CA 0445 PST JAN 13
\nSAN FRANCISCO-CA 0531 PST JAN 13
\nLA JOLLA-CA 0604 PST JAN 13<\/p>\n

THIS WILL BE THE FINAL WEST COAST\/ALASKA TSUNAMI WARNING CENTER
\nMESSAGE ISSUED FOR THIS EVENT. REFER TO THE INTERNET
\nSITE WCATWC.ARH.NOAA.GOV FOR ADDITIONAL OBSERVED WAVE HEIGHTS AND
\nESTIMATED ARRIVAL TIMES.\n<\/p><\/blockquote>\n

All in all, a very useful system that I’m really happy to see work and work well. Thankfully, this time there was no tangible destruction resulting, but it was very reassuring to know about the event and it’s potential impacts as well as actual impacts. Good job NOAA<\/a> team!
\n
\n
\nIf you liked this entry, Digg It!<\/a>
\nTune: You Shook Me<\/a> by Muddy Waters<\/a>
\nTechnorati Tags: Tsunami<\/a> | Earthquake<\/a> | NOAA<\/a> | Mike Harding Blog<\/a><\/small><\/p>\n","protected":false},"excerpt":{"rendered":"

As I wrote about a couple of months ago, NOAA has created an automated tsunami warning system. Last night about 8:45 PST, I got a series of emails about a tsunami warning that went into effect because of a magnitude 8.2 earthquake east of the Kiril Islands east of Russia and north of Japan. Here’s […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"_links":{"self":[{"href":"https:\/\/montaraventures.com\/blog\/wp-json\/wp\/v2\/posts\/279"}],"collection":[{"href":"https:\/\/montaraventures.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/montaraventures.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/montaraventures.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/montaraventures.com\/blog\/wp-json\/wp\/v2\/comments?post=279"}],"version-history":[{"count":0,"href":"https:\/\/montaraventures.com\/blog\/wp-json\/wp\/v2\/posts\/279\/revisions"}],"wp:attachment":[{"href":"https:\/\/montaraventures.com\/blog\/wp-json\/wp\/v2\/media?parent=279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/montaraventures.com\/blog\/wp-json\/wp\/v2\/categories?post=279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/montaraventures.com\/blog\/wp-json\/wp\/v2\/tags?post=279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}