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2012 TSUNAMI AWARENESS WEEK
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THE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION...NOAA...AND
THE NATIONAL TSUNAMI HAZARD MITIGATION PROGRAM HAS DESIGNATED
MARCH 25TH THROUGH MARCH 31ST AS TSUNAMI AWARENESS WEEK.
ALTHOUGH EXTREMELY RARE EVENTS...EARTHQUAKES OCCURRING IN THE
PUERTO RICAN TRENCH AREA...OR IN AREAS IN THE ATLANTIC OCCURRING
ALONG THE EASTERN SEABOARD...PRODUCING UNDERSEA SLIDES...HAVE THE
GREATEST POTENTIAL FOR PRODUCING A TSUNAMI ON THE EAST COAST.
NOAA OPERATES A TSUNAMI WARNING SYSTEM FOR THE EAST COAST OF THE
UNITED STATES THROUGH THE TSUNAMI WARNING CENTER LOCATED IN PALMER
ALASKA. THE WARNING CENTER OPERATED 24 HOURS A DAY AND 365 DAYS A
YEAR...ISSUES WATCH...WARNING AND ADVISORY INFORMATION MESSAGES AS
EARLY AS 5 MINUTES AFTER AN EARTHQUAKE.
UPON RECEIPT OF THESE TSUNAMI ALERT MESSAGES STATE AND LOCAL
EMERGENCY MANAGEMENT OFFICIALS WILL DETERMINE THE APPROPRIATE
RESPONSE INCLUDING WHETHER OR NOT TO EVACUATE PEOPLE FROM THE
WARNED AREA.
TO DATE MANY COASTAL COMMUNITIES HAVE RECEIVED THE TSUNAMIREADY
DESIGNATION. ONSLOW COUNTY AND CAMP LEJEUNE ARE INCLUDED IN THIS
LIST.
TO ASSIST TSUNAMI PREPAREDNESS EFFORTS...ON WEDNESDAY...MARCH
28TH...A TSUNAMI EXERCISE...LANTEX 12...WILL TAKE PLACE ALONG
THE ATLANTIC AND GULF COASTS OF THE UNITED STATES. THE WEST COAST
ALASKA TSUNAMI WARNING CENTER WILL SEND A TEST TSUNAMI WARNING
MESSAGE REPLICATING A TSUNAMI GENERATED BY AND EARTHQUAKE THAT
TRIGGERS A SUBMARINE LANDSLIDE OR SLUMP OFF THE SOUTH CAROLINA
COAST. THIS TEST WARNING MESSAGE WILL BE SENT OUT BY THE TSUNAMI
WARNING CENTER AT 904 AM EDT ON WEDNESDAY MARCH 28TH. THE SLUMP REPLICATES A SIMILAR EVENT THAT OCCURRED OFF THE GRAND
BANKS ON NOVEMBER 18TH...1929...WHICH CAUSED EXTENSIVE DAMAGE TO
COASTAL NEWFOUNDLAND AND KILLED 28 PEOPLE. AN EVENT LIKE THIS
WOULD BE CHARACTERIZED BY A SERIES OF FAST MOVING WAVES UP TO 6 TO
9 FEET THAT WILL RUN UP INTO THE DUNES. THE WAVES WILL CREATE
DANGEROUS CURRENTS AS WELL...BUT WOULD PRIMARILY IMPACT THE
BEACHES AND INLETS DIRECTLY.
IN CONJUNCTION WITH THE TEST WARNING FROM THE TSUNAMI WARNING
CENTER THE NWS IN NEWPORT WILL ACTIVATE A TEST TONE ALERT OF NOAA
WEATHER RADIO ALL HAZARDS VIA THE ROUTINE WEEKLY TEST AROUND 910
AM EDT FOR OUR COASTAL TRANSMITTERS IN EASTERN NORTH CAROLINA. THE
REGULAR ROUTINE WEEKLY TEST SCRIPT WILL BE USES FOR INLAND
TRANSMITTERS...ALSO AT 910 AM, AS A RESULT OF THE EXERCISE THE NWS AND ITS PARTNERS WILL BE ABLE
TO TEST THE LINES OF COMMUNICATION FOR A TSUNAMI EVENT...WHICH IS
CRITICAL DURING AN ACTUAL WARNING TO EFFECTIVELY EVACUATE THE
BEACHES AND GET PEOPLE TO HIGHER GROUND.ALTHOUGH EAST COAST
TSUNAMIS ARE RARE...THEY HAVE HAPPENED ALONG THE EAST COAST...AND
A VARIETY OF SOURCES EXIST INCLUDING...METEOROLOGICALLY INDUCED...
LIKE WHAT HAPPENED IN DAYTONA IN 1992...LANDSLIDES FROM LAS PALMAS
IN THE CANARY ISLANDS...SUBMARINE LANDSLIDES...LIKE WHAT HAPPENED
ON THE GRAND BANKS...AND THE CURRITUCK SLUMP...TECTONIC AND SEISMIC
FAULTS ASSOCIATED WITH THE PUERTO RICAN TRENCH...AND THE AZORES
GIBRALTAR FAULT...AND ASTEROID IMPACTS. A SUBMARINE SLIDE WHICH
OCCURRED OFF CURRITUCK THOUSANDS OF YEARS AGO WAS DETERMINED TO
PRODUCE AN 18 FOOT WAVE WHICH OVER TOPPED DUNES ON THE OUTER BANKS.
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Where can I get additional Information?
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For additonal information regarding TSUNAMI AWARENESS WEEK TSUNAMI INFO
The NWS Office in Wilmington NC has produced information about East Coast TSUNAMI Threats atEast Coast TSUNAMI THREATS
For more detailed information about the March 28th LANTEX 12 TSUNAMI Exercise please visit the West Coast Alaska Tsunami Warning Center at LANTEX 12
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