博文
Tsunami and Alert Sirens, Take 6: sleepless in Hawaii
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Email sent at 3:08 am on March 11, 2011 to U. Hawaii staff.
Based on the latest information available, classes have been cancel(l)ed for Friday, March 12 (should be March 11) at all UH campuses on all islands.
Non-essential personnel should not come to campus.
Over these next difficult hours we ask that all our students, faculty
and staff focus on the health and well-being of yourselves, your
families and your neighbors.
About 2:30 am on March 11. Siren #6 came.
About 2:10 am on March 11. Siren #5 came.
About 1:10 am on March 11. Siren #4 came.
At 12:13 am on March 11, the siren goes off again, for the third time. This is going to be a long sleepless night!
At 11:50 pm on March 10.
HONOLULU – A tsunami warning has been expanded to include the entire western U.S. coast.
The Tsunami Warning Center says the warning is in effect for California, Oregon, Washington and southern Alaska.
Warnings were issued for Hawaii and other parts of the Pacific following a tsunami early Friday after a massive earthquake struck in Japan.
Tsunami warnings are issued due to the imminent threat of a tsunami.
Previous update:
HONOLULU – Hawaii and other parts of the Pacific are bracing for a destructive tsunami after a massive earthquake struck in Japan.
Tsunami sirens were sounded and coastal areas were being evacuated in Hawaii, where the first waves were expected to hit at 3 a.m. Friday.
The Hawaii-based Pacific Tsunami Warning Center widened its tsunami warning beyond East Asia late Thursday to include Hawaii, Australia, New Zealand, Mexico and Central and South America and the rest of the Pacific Ocean.
Thursday, March 10, 2011 10:04 pm
In case you missed it, you can play this YouTube clip (not today's recording) to see how loud it is.
http://news.yahoo.com/s/ap/20110311/ap_on_re_as/as_japan_earthquake
Thursday, March 10, 2011 10:04 pm
To all UH
Hilo Faculty, Staff, and Students:
A Tsunami WARNING has now been issued. A tsunami may have been generated by the
earthquake near Japan and an investigation is underway to determine if there is
a tsunami threat to Hawaii.
The most urgent concern would be for those who are located in any low-lying
areas within tsunami inundation zones.
Please be ready to prepare for any potential loss of power and other
utilities.
We will continue to watch for information from civil defense authorities and
will keep you posted.
The Civil Defense Emergency Message is below:
CIVIL DEFENSE EMERGENCY MESSAGE
Honshu, Japan 8.8 Earthquake/Tsunami WARNING
March 10, 2011
I. CURRENT SITUATION:
The Pacific Tsunami Warning Center has issued a Tsunami WARNING for the State
of Hawaii at 9:31 p.m. (HST) March 10, 2011. A major earthquake – with a magnitude of 8.8 –
occurred at 7:46 PM (HST) near the East Coast of Honshu, Japan. A tsunami may have been generated by
this earthquake and an investigation is underway to determine if there is a
tsunami threat to Hawaii. If the earthquake generated damaging tsunami waves,
the estimated earliest arrival of the first tsunami wave is 2:59 AM (HST),
Friday, March 11, 2011. Follow these instructions:
II. COMMENTS:
1. Stay tuned to radio and TV broadcasts for the latest information and
instructions.
2. Check the Tsunami Evacuation Maps in the Emergency Preparedness section of
your telephone directory white pages or the Tsunami Evacuation Mapping Tool on
the Hawaii State Civil Defense website (http://www.scd.hawaii.gov).
3. Please obey all emergency instructions issued by police, fire, civil defense
and other emergency personnel.
Watch message prepared by State Civil Defense.
TIME/DATE: 9:45 PM/March 10, 2011
TSUNAMI MESSAGE NUMBER 3
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
931 PM HST THU MAR 10 2011
TO - CIVIL DEFENSE IN THE STATE OF HAWAII SUBJECT - TSUNAMI WARNING A TSUNAMI
WARNING IS ISSUED FOR THE STATE OF HAWAII EFFECTIVE AT
0931 PM HST.
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
ORIGIN TIME - 0746 PM HST 10 MAR 2011
COORDINATES - 38.2 NORTH 142.5 EAST
LOCATION - NEAR EAST COAST OF HONSHU JAPAN
MAGNITUDE - 8.8 MOMENT
MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY
GAUGE LOCATION LAT
LON TIME
AMPL PER
DART 21413
30.5N 152.1E 0659Z 0.76M / 2.5FT 32MIN
HANASAKI HOKKAIDO J 43.3N 145.6E 0657Z 2.79M
/ 9.2FT 76MIN
DART 21401
42.6N 152.6E 0643Z 0.67M / 2.2FT 40MIN
DART 21418
38.7N 148.7E 0619Z 1.08M / 3.5FT 06MIN
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.
NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY
ARE GENERALLY MUCH SMALLER THAN
WOULD BE COASTAL
MEASUREMENTS AT SIMILAR
LOCATIONS.
EVALUATION
A TSUNAMI HAS BEEN GENERATED THAT COULD CAUSE DAMAGE ALONG
COASTLINES OF ALL ISLANDS IN THE STATE OF HAWAII. URGENT ACTION SHOULD BE
TAKEN TO PROTECT LIVES AND PROPERTY.
A TSUNAMI IS A SERIES OF LONG OCEAN WAVES. EACH INDIVIDUAL WAVE
CREST CAN LAST 5 TO 15 MINUTES OR MORE AND EXTENSIVELY FLOOD COASTAL
AREAS. THE DANGER CAN CONTINUE FOR MANY HOURS AFTER THE INITIAL WAVE AS
SUBSEQUENT WAVES ARRIVE. TSUNAMI WAVE HEIGHTS CANNOT BE PREDICTED AND THE
FIRST WAVE MAY NOT BE THE LARGEST.
TSUNAMI WAVES EFFICIENTLY WRAP AROUND ISLANDS. ALL SHORES ARE AT
RISK NO MATTER WHICH DIRECTION THEY FACE. THE TROUGH OF A TSUNAMI WAVE
MAY TEMPORARILY EXPOSE THE SEAFLOOR BUT THE AREA WILL QUICKLY FLOOD
AGAIN. EXTREMELY STRONG AND UNUSUAL NEARSHORE CURRENTS CAN ACCOMPANY A
TSUNAMI. DEBRIS PICKED UP AND CARRIED BY A TSUNAMI AMPLIFIES ITS
DESTRUCTIVE POWER. SIMULTANEOUS HIGH TIDES OR HIGH SURF CAN SIGNIFICANTLY
INCREASE THE TSUNAMI HAZARD.
THE ESTIMATED ARRIVAL TIME IN HAWAII OF THE FIRST TSUNAMI WAVE IS
0259 AM HST FRI 11 MAR 2011 MESSAGES WILL BE ISSUED HOURLY OR SOONER AS
CONDITIONS WARRANT.
--
This emergency alert was sent on behalf of Debra L Fitzsimons.
Please do not reply to this message.
It was sent from an address that cannot accept incoming email.
Alert ID number: 1299830623-25564
Alert distribution:
- All faculty, staff, and students on Hawaii Island
- UH Emergency Managers
Please note that you are listed in RCUH or SCOPIS (overload and
temporary hires) sources and may receive an Alert unrelated to your
location or a duplicate copy of an Alert. The University currently
does not collect the necessary information for RCUH and SCOPIS
employees to be unequivocally associated with a campus. Alerts are
targeted by geographic location and we've opted to always send to those
for whom we are unsure of the location. We continue to improve our
data sources and look forward to resolving this. Meanwhile, it is
important that we ensure that everyone applicable receives the Alert.
https://m.sciencenet.cn/blog-306792-421211.html
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