LATEST: 7.8 aftershock, NEW tsunami watch issued

[Chacor]

Sorry for posting this in TT, but I know it'll be moved to OT, and that'll leave a redirect, so

TSUNAMI BULLETIN NUMBER 001
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1124Z 12 SEP 2007

THIS BULLETIN IS FOR ALL AREAS OF THE INDIAN OCEAN.

... AN INDIAN-OCEAN-WIDE TSUNAMI WATCH IS IN EFFECT ...

A TSUNAMI WATCH IS IN EFFECT FOR

INDONESIA / AUSTRALIA / INDIA / SRI LANKA / THAILAND /
UNITED KINGDOM / MALDIVES / MYANMAR / MALAYSIA / BANGLADESH /
MAURITIUS / REUNION / SEYCHELLES / MADAGASCAR / SOMALIA / OMAN /
PAKISTAN / IRAN / YEMEN / COMORES / CROZET ISLANDS /
MOZAMBIQUE / KENYA / TANZANIA / KERGUELEN ISLANDS /
SOUTH AFRICA / SINGAPORE

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

ORIGIN TIME - 1110Z 12 SEP 2007
COORDINATES - 4.5 SOUTH 101.3 EAST
LOCATION - SOUTHERN SUMATERA INDONESIA
MAGNITUDE - 7.9

EVALUATION

EARTHQUAKES OF THIS SIZE HAVE THE POTENTIAL TO GENERATE A
WIDESPREAD DESTRUCTIVE TSUNAMI THAT CAN AFFECT COASTLINES ACROSS
THE ENTIRE INDIAN OCEAN BASIN.

HOWEVER - IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED. THIS
WATCH IS BASED ONLY ON THE EARTHQUAKE EVALUATION. AUTHORITIES IN
THE REGION SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THE
POSSIBILITY OF A WIDESPREAD DESTRUCTIVE TSUNAMI.

DUE TO ONLY LIMITED SEA LEVEL DATA FROM THE REGION IT MAY NOT
BE POSSIBLE FOR THIS CENTER TO RAPIDLY CONFIRM NOR EVALUATE THE
STRENGTH OF A TSUNAMI IF ONE HAS BEEN GENERATED.

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.

Code: Select all

 LOCATION         FORECAST POINT     COORDINATES     ARRIVAL TIME
 --------------------------------    ------------    ------------
 INDONESIA        BENGKULU            3.9S 102.0E    1123Z 12 SEP
                  SIBERUT             1.5S  98.7E    1203Z 12 SEP
                  PADANG              0.9S 100.1E    1214Z 12 SEP
                  BANDAR LAMPUNG      5.7S 105.3E    1242Z 12 SEP
                  SIMEULUE            2.5N  96.0E    1243Z 12 SEP
                  CILACAP             7.8S 108.9E    1307Z 12 SEP
                  BANDA ACEH          5.5N  95.1E    1329Z 12 SEP
                  BALI                8.7S 115.3E    1345Z 12 SEP
                  KUPANG             10.0S 123.4E    1453Z 12 SEP
                  BELAWAN             3.8N  99.0E    1703Z 12 SEP
 AUSTRALIA        CHRISTMAS IS       10.4S 105.4E    1220Z 12 SEP
                  COCOS ISLAND       12.1S  96.7E    1234Z 12 SEP
                  NORTH WEST CAPE    21.5S 113.9E    1429Z 12 SEP
                  CAPE INSPIRATIO    25.9S 113.0E    1526Z 12 SEP
                  CAPE LEVEQUE       16.1S 122.6E    1542Z 12 SEP
                  PERTH              32.0S 115.3E    1545Z 12 SEP
                  AUGUSTA            34.3S 114.7E    1559Z 12 SEP
                  GERALDTOWN         28.6S 114.3E    1603Z 12 SEP
                  ESPERANCE          34.0S 121.8E    1726Z 12 SEP
                  KINGSTON SOUTH     37.0S 139.4E    1906Z 12 SEP
                  EUCLA MOTEL        31.8S 128.9E    1934Z 12 SEP
                  DARWIN             12.1S 130.7E    1948Z 12 SEP
                  HEARD ISLAND       54.0S  73.5E    1955Z 12 SEP
                  HOBART             43.3S 147.6E    2015Z 12 SEP
 INDIA            GREAT NICOBAR       7.1N  93.6E    1338Z 12 SEP
                  LITTLE ANDAMAN     10.7N  92.3E    1421Z 12 SEP
                  PORT BLAIR         12.0N  92.5E    1440Z 12 SEP
                  NORTH ANDAMAN      13.3N  92.6E    1453Z 12 SEP
                  CHENNAI            13.4N  80.4E    1540Z 12 SEP
                  KAKINADA           17.2N  82.7E    1604Z 12 SEP
                  TRIVANDRUM          8.3N  76.9E    1608Z 12 SEP
                  BALESHWAR          21.6N  87.3E    1701Z 12 SEP
                  MANGALORE          13.3N  74.4E    1732Z 12 SEP
                  BOMBAY             18.8N  72.6E    2005Z 12 SEP
                  GULF OF KUTCH      22.7N  68.9E    2019Z 12 SEP
 SRI LANKA        DONDRA HEAD         5.8N  80.5E    1447Z 12 SEP
                  TRINCOMALEE         8.7N  81.3E    1502Z 12 SEP
                  COLOMBO             6.9N  79.8E    1515Z 12 SEP
                  JAFFNA              9.9N  80.0E    1625Z 12 SEP
 THAILAND         PHUKET              8.0N  98.2E    1508Z 12 SEP
                  KO PHRA THONG       9.1N  98.2E    1554Z 12 SEP
                  KO TARUTAO          6.6N  99.6E    1626Z 12 SEP
 UNITED KINGDOM   DIEGO GARCIA        7.3S  72.4E    1526Z 12 SEP
 MALDIVES         GAN                 0.6S  73.2E    1528Z 12 SEP
                  MALE                4.2N  73.6E    1544Z 12 SEP
                  MINICOV             8.3N  73.0E    1614Z 12 SEP
 MYANMAR          PYINKAYAING        15.8N  94.2E    1537Z 12 SEP
                  CHEDUBA ISLAND     18.9N  93.4E    1554Z 12 SEP
                  SITTWE             20.0N  92.9E    1629Z 12 SEP
                  MERGUI             12.8N  98.4E    1647Z 12 SEP
                  YANGON             16.2N  96.5E    1713Z 12 SEP
 MALAYSIA         GEORGETOWN          5.4N 100.1E    1704Z 12 SEP
                  PORT DICKSON        2.5N 101.7E    2048Z 12 SEP
 BANGLADESH       CHITTAGONG         22.5N  91.2E    1801Z 12 SEP
 MAURITIUS        PORT LOUIS         20.0S  57.3E    1803Z 12 SEP
 REUNION          ST DENIS           20.8S  55.2E    1820Z 12 SEP
 SEYCHELLES       VICTORIA            4.5S  55.6E    1847Z 12 SEP
 MADAGASCAR       TOAMASINA          17.8S  49.8E    1900Z 12 SEP
                  ANTSIRANANA        12.1S  49.5E    1905Z 12 SEP
                  MANAKARA           22.2S  48.2E    1919Z 12 SEP
                  CAP STE MARIE      25.8S  45.2E    2009Z 12 SEP
                  MAHAJANGA          15.4S  46.2E    2009Z 12 SEP
                  TOLIARA            23.4S  43.6E    2034Z 12 SEP
 SOMALIA          HILALAYA            6.5N  49.2E    1922Z 12 SEP
                  CAPE GUARO         11.9N  51.4E    1933Z 12 SEP
                  MOGADISHU           2.0N  45.5E    1938Z 12 SEP
                  KAAMBOONI           1.5S  41.9E    2004Z 12 SEP
 OMAN             SALALAH            17.0N  54.2E    1930Z 12 SEP
                  DUQM               19.7N  57.8E    1939Z 12 SEP
                  MUSCAT             23.9N  58.6E    1943Z 12 SEP
 PAKISTAN         GWADAR             25.1N  62.4E    1937Z 12 SEP
                  KARACHI            24.7N  66.9E    2031Z 12 SEP
 IRAN             GAVATER            25.0N  61.3E    1943Z 12 SEP
 YEMEN            AL MUKALLA         14.5N  49.2E    2003Z 12 SEP
                  ADEN               13.0N  45.2E    2100Z 12 SEP
 COMORES          MORONI             11.6S  43.3E    2006Z 12 SEP
 CROZET ISLANDS   CROZET ISLANDS     46.4S  51.8E    2009Z 12 SEP
 MOZAMBIQUE       CABO DELGADO       10.7S  40.7E    2034Z 12 SEP
                  ANGOCHE            15.5S  40.8E    2044Z 12 SEP
                  QUELIMANE          18.0S  37.1E    2213Z 12 SEP
                  MAPUTO             25.9S  32.8E    2218Z 12 SEP
                  BEIRA              19.9S  35.1E    2246Z 12 SEP
 KENYA            MOMBASA             4.0S  39.7E    2039Z 12 SEP
 TANZANIA         LINDI               9.8S  39.9E    2039Z 12 SEP
                  DAR ES SALAAM       6.7S  39.4E    2047Z 12 SEP
 KERGUELEN ISLAN  PORT AUX FRANCA    49.0S  69.2E    2049Z 12 SEP
 SOUTH AFRICA     PRINCE EDWARD I    46.6S  37.6E    2146Z 12 SEP
                  DURBAN             29.8S  31.2E    2205Z 12 SEP
                  PORT ELIZABETH     33.9S  25.8E    2256Z 12 SEP
                  CAPE TOWN          34.1S  18.0E    2359Z 12 SEP
 SINGAPORE        SINGAPORE           1.2N 103.8E    0048Z 13 SEP

THIS WILL BE THE ONLY BULLETIN ISSUED BY THE PACIFIC TSUNAMI
WARNING CENTER FOR THIS EVENT UNLESS ADDITIONAL INFORMATION
BECOMES AVAILABLE.

THE JAPAN METEOROLOGICAL AGENCY MAY ISSUE ADDITIONAL INFORMATION
FOR THIS EVENT. IN THE CASE OF CONFLICTING INFORMATION...THE
MORE CONSERVATIVE INFORMATION SHOULD BE USED FOR SAFETY.

[HURAKAN]

This poor people don't get a break from the seismic activity.

[Chacor]

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
------------------- ----- ------ ----- --------------- -----
PADANG ID 0.9S 100.4E 1221Z 0.35M / 1.2FT 28MIN

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
ALREADY HAVE BEEN DESTRUCTIVE ALONG SOME COASTS.

[Praxus]

Wow lets hope it fizzles out like the last watch.

Dunno whats up with that area lately, these earthquakes have been almost a regular occurrence since the great tsunami.

[cyclonic chronic]

http://www.cnn.com/2007/WORLD/asiapcf/0 ... index.html

cnn reports a 2ft wave in padang, sumatra.

[JonathanBelles]

8.2 according to CNN.

[Chacor]

Biggest tsunami reported by PTWC was just under 1m.

RSMC La Reunion/Meteo France is forwarding JMA bulletins now, so I guess it's fair to say this rightfully belongs in TT since they're using the WTIO20 (tropical cyclone) headers

581
WTIO20 FMEE 121500

SECURITE
WARNING FROM METAREA VIII (S)
ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTRE/LA REUNION
12/09/2007 AT 1415 UTC

WARNING
BEGINNING OF VALIDITY : 07/09/12 AT 1400 UTC
PHENOMENON : TSUNAMI
TEXT : THERE IS A TSUNAMI WARNING FOR ALL THE COASTS OF REUNION
ISLAND AND MAYOTTE ISLAND SINCE 07/09/12 AT 1400 UTC.



ALERTE_TSUNAMI TOKYO WEIO40 RJTD 2007/09/12 14:25
TSUNAMI BULLETIN NUMBER 005
ISSUED BY THE JAPAN METEOROLOGICAL AGENCY (JMA)
ISSUED AT 1425 12 SEP 2007 (UTC)

... AN INDIAN-OCEAN-WIDE TSUNAMI WATCH IS IN EFFECT ...

1.EARTHQUAKE INFORMATION
ORIGIN TIME : 1110 12 SEP 2007 (UTC)
COORDINATES : 4.5 SOUTH 101.3 EAST
LOCATION : SOUTHERN SUMATRA, INDONESIA
MAGNITUDE : 8.2

2.EVALUATION
THERE IS A POSSIBILITY OF A DESTRUCTIVE OCEAN-WIDE
TSUNAMI IN THE INDIAN OCEAN.

3.ESTIMATED TSUNAMI TRAVEL TIME
THREE HOURS TO SIX HOURS
FRANCE:
AMSTERDAM ISLAND AND ST-PAUL
SIX HOURS TO NINE HOURS
COMOROS:
ALL COASTS
FRANCE:
MAYOTTE ISLAND
REUNION ISLAND
CROZET ISLANDS
MADAGASCAR:
ALL COASTS
SEYCHELLES:
ALL COASTS
MAURITIUS:
ALL COASTS
MOZAMBIQUE:
ALL COASTS
TANZANIA:
ALL COASTS
KENYA:
ALL COASTS
NINE HOURS TO TWELVE HOURS
SOUTH AFRICA:
INDIAN OCEAN COAST
FRANCE:
KERGUELEN
DJIBOUTI:
GULF COAST

[Pebbles]

I would like to see an exception made with postings about Tsunami's on TT. Honestly I don't hop over to off topic that often, 'specially when we have storms going, but many who are already interested in tropics are interested in other geologic (sp?) things like this. Also, it's so infrequent I don't feel it takes away from this board to have one thread when it does happen.

[Duddy]

The Kenya government has issued a tsunami warning for the coast of Kenya and is stating that a 'massive' tsunami is heading towards the coast and is projected to hit at about midnight there. (about 2 hours from now)

[StJoe]

Just found this on a local Kenya site:

Nairobi - The Kenyan government is asking all people to evacuate from beach areas and has issued a tsunami warning following an earthquake in the Indian Ocean.

A statement on the government's website said "a massive tsunami is expected to hit the Kenyan coast at 11.39pm on Wednesday night." - Sapa-AP

Hope it is not as "massive" as they seem to think.

[JonathanBelles]

Just found this on a local Kenya site:

Nairobi - The Kenyan government is asking all people to evacuate from beach areas and has issued a tsunami warning following an earthquake in the Indian Ocean.

A statement on the government's website said "a massive tsunami is expected to hit the Kenyan coast at 11.39pm on Wednesday night." - Sapa-AP

Hope it is not as "massive" as they seem to think.

When is that EST?

[StJoe]

Just found this on a local Kenya site:

Nairobi - The Kenyan government is asking all people to evacuate from beach areas and has issued a tsunami warning following an earthquake in the Indian Ocean.

A statement on the government's website said "a massive tsunami is expected to hit the Kenyan coast at 11.39pm on Wednesday night." - Sapa-AP

Hope it is not as "massive" as they seem to think.

When is that EST?

No...I believe it is there time, and if i'm right, thats about an hour from now.

[Dionne]

I'm having some questions about an 8.2 offshore Sumatra generating a tsunami of "massive" size reaching Kenya across the Indian Ocean. We'll have to see what our base at Deigo Garcia reports?

It is possible.....the Great Alaskan earthquake (3/27/64) generated a tsunami that killed people in Crescent City, California.......hours later.

[Praxus]

Wow, ANOTHER earthquake and watch remind me never to move to indonesia

TSUNAMI BULLETIN NUMBER 002
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 0028Z 13 SEP 2007

THIS BULLETIN IS FOR ALL AREAS OF THE INDIAN OCEAN.

... A REGIONAL TSUNAMI WATCH IS IN EFFECT ...

A TSUNAMI WATCH IS IN EFFECT FOR

INDONESIA / AUSTRALIA

NOTE THAILAND MALAYSIA SINGAPORE ARE NOT IN A WATCH.

FOR OTHER AREAS OF THE INDIAN OCEAN REGION...THIS MESSAGE 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

ORIGIN TIME - 2349Z 12 SEP 2007
COORDINATES - 2.7 SOUTH 100.7 EAST
LOCATION - SOUTHERN SUMATERA INDONESIA
MAGNITUDE - 7.8

EVALUATION

EARTHQUAKES OF THIS SIZE HAVE THE POTENTIAL TO GENERATE A
DESTRUCTIVE LOCAL TSUNAMI AND SOMETIMES A DESTRUCTIVE REGIONAL
TSUNAMI ALONG COASTS LOCATED USUALLY NO MORE THAN A THOUSAND
KILOMETERS FROM THE EARTHQUAKE EPICENTER. AREAS FURTHER FROM THE
EPICENTER COULD EXPERIENCE SMALL SEA LEVEL CHANGES AND STRONG OR
UNUSUAL COASTAL CURRENTS.

HOWEVER - IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED. THIS
WATCH IS BASED ONLY ON THE EARTHQUAKE EVALUATION. AUTHORITIES IN
THE REGION SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS
POSSIBILITY. THE WATCH WILL NOT EXPAND TO OTHER AREAS OF THE
INDIAN OCEAN UNLESS ADDITIONAL DATA ARE RECEIVED TO WARRANT SUCH
AN EXPANSION.

DUE TO ONLY LIMITED SEA LEVEL DATA FROM THE REGION IT MAY NOT
BE POSSIBLE FOR THIS CENTER TO RAPIDLY NOR ACCURATELY EVALUATE
THE STRENGTH OF A TSUNAMI IF ONE HAS BEEN GENERATED.

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
-------------------------------- ------------ ------------
INDONESIA PADANG 0.9S 100.1E 0021Z 13 SEP
BENGKULU 3.9S 102.0E 0026Z 13 SEP
SIBERUT 1.5S 98.7E 0036Z 13 SEP
SIMEULUE 2.5N 96.0E 0116Z 13 SEP
BANDAR LAMPUNG 5.7S 105.3E 0148Z 13 SEP
BANDA ACEH 5.5N 95.1E 0202Z 13 SEP
CILACAP 7.8S 108.9E 0207Z 13 SEP
BELAWAN 3.8N 99.0E 0536Z 13 SEP
AUSTRALIA CHRISTMAS IS 10.4S 105.4E 0120Z 13 SEP
COCOS ISLAND 12.1S 96.7E 0127Z 13 SEP

THIS WILL BE THE FINAL BULLETIN ISSUED BY THE PACIFIC TSUNAMI
WARNING CENTER FOR THIS EVENT UNLESS ADDITIONAL INFORMATION
BECOMES AVAILABLE.

THE JAPAN METEOROLOGICAL AGENCY MAY ISSUE ADDITIONAL INFORMATION
FOR THIS EVENT. IN THE CASE OF CONFLICTING INFORMATION...THE
MORE CONSERVATIVE INFORMATION SHOULD BE USED FOR SAFETY.

[Chacor]

JMA bulletin:

662
WEIO40 RJTD 130009
TSUNAMI BULLETIN NUMBER 001
ISSUED BY THE JAPAN METEOROLOGICAL AGENCY (JMA)
ISSUED AT 0009 13 SEP 2007 (UTC)

... A REGIONAL TSUNAMI WATCH IS IN EFFECT ...

1.EARTHQUAKE INFORMATION
ORIGIN TIME : 2349 12 SEP 2007 (UTC)
COORDINATES : 2.7 SOUTH 100.7 EAST
LOCATION : SOUTHERN SUMATRA, INDONESIA
MAGNITUDE : 7.8

2.EVALUATION
THERE IS A POSSIBILITY OF A DESTRUCTIVE REGIONAL TSUNAMI
IN THE INDIAN OCEAN.

3.ESTIMATED TSUNAMI TRAVEL TIME
ONE HOUR OR LESS
INDONESIA:
INDIAN OCEAN COAST OF SUMATRA
INDIAN OCEAN COAST OF JAWA
AUSTRALIA:
COCOS ISLANDS
ONE HOUR TO THREE HOURS
INDIA:
ALL COASTS OF ANDAMAN AND NICOBAR ISLANDS
SRI LANKA:
ALL COASTS
INDONESIA:
MALACCA COAST OF SUMATRA
SOUTH COASTS OF LESSER SUNDA ISLANDS

*TSUNAMI TRAVEL TIME IS ESTIMATED ONLY FROM EARTHQUAKE DATA
AND INDICATES THE TIME LAPSE BETWEEN ORIGIN TIME AND TSUNAMI
ARRIVAL TIME.

*THIS WILL BE THE FINAL INFORMATION UNLESS THERE ARE CHANGES
ABOUT THE POTENTIAL OF TSUNAMI GENERATION AND ESTIMATED TSUNAMI
TRAVEL TIME BY RE-EVALUATION OF THE EARTHQUAKE OR THERE ARE
REPORTS ON TSUNAMI OBSERVATIONS.

=

[Aslkahuna]

The second (7.9) major shock was not an aftershock of the 8.4 but a second separate shock possibly triggered by the first since it was in a different location and was much shallower than the first. After that monster 2004 event it's going to take a long time for the fault systems down there to redjust to the new starin patterns. Comparing the the Prince William Sound (AK) shock of 1964 to the recent 8.4 is an apples/oranges comparison since at MM9.2 , the 1964 shock released 25 times more energy than the 8.4 and involved the deformation of an area the size of California.

Steve