M 6.9 in Antarctica on 23 Jan 2021 23:36 UTC

Global Telecommunication Service

GTS (Global Telecommunication Service) is the official Warning and Alerting channel by the World Meteorological Organization (WMO) adopted by several Warning Organizations. As soon as a new GTS message regarding Tropical Cyclones(WT) or Tsunami(WE) the messages are processed and possibly assigned to the specific event. When a new GTS message is present an new tab in the specific event report page is present.The presence of a GTS message is shown in the homepage with a dedicated icon.

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2022-01-16 22:10 link


Original Message :

Received FVAU01 at 22:10 UTC, 16/01/22 from ADRM
VA ADVISORY
DTG: 20220116/2210Z
VAAC: DARWIN
VOLCANO: HUNGA TONGA-HUNGA HA APAI 243040
PSN: S2032 W17523
AREA: TONGA
SUMMIT ELEV: 114M
ADVISORY NR: 2022/6
INFO SOURCE: HIMAWARI-8, PIREPS
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: LARGE ERUPTION OBS VA DTG: 16/2130Z
OBS VA CLD: FL400/630 S2518 E16259 - S2904 E15333 - S2256 E14257 - S1804 E14239 - S1344 E14501 - S1236 E15042 - S1527 E16200 - S1727 E16256 MOV W 55KT E16200 - S1727 E16256 MOV W 55KT
FCST VA CLD +6 HR: 17/0330Z FL400/630 S2527 E16257 - S2931 E15854 - S2925 E14654 - S2229 E13737 - S1148 E13742 - S1144 E14715 - S1527 E16154 - S1718 E16300 E14715 - S1527 E16154 - S1718 E16300
FCST VA CLD +12 HR: 17/0930Z FL400/630 S2519 E16233 - S2931 E15854 - S3019 E14404 - S2457 E12901 - S0954 E12943 - S0924 E14415 - S1402 E15954 - S1729 E16209 E14415 - S1402 E15954 - S1729 E16209
FCST VA CLD +18 HR: 17/1530Z FL400/630 S1938 E16049 - S2620 E16041 - S2946 E15454 - S2913 E13820 - S2818 E12259 - S1936 E12001 - S0929 E12414 - S0838 E14542 - S1340 E15918 E12001 - S0929 E12414 - S0838 E14542 - S1340 E15918
RMK: VAA LIMITED TO VAAC DARWIN AREA. FOR VA ADVISORIES WITHIN VAAC WELLINGTON AREA SEE WELLINGTON VAA FVPS01 NZKL. VA OBS MOVING W ON VIS SAT IMAGERY. HEIGHT ESTIMAGED BASED ON OBS VA MOVEMENT AND PILOT REPORTS.
NXT ADVISORY: NO LATER THAN 20220117/0410Z=

2021-01-24 01:05 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.0 occurred in the SOUTH shetland ISLANDS at 2337 UTC on saturday JANUARY 23 2021
  • Small TSUNAMI waves have been observed
Tsunami Observations

  • The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level
GAUGE LOCATIONLATLONTIME (UTC)HEIGHT (m)PERIOD (min)
Antarctica Base Pr-62.5-59.700: 210.0424
Ohiggins Cl-63.3-57.900: 240.0430


Original Message :

WEPA42 PHEB 240104
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 2
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
0102 UTC SUN JAN 24 2021

...PTWC TSUNAMI SUPPLEMENT STATEMENT...


**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

THIS STATEMENT IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE
UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS
MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.

NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF
ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED
INFORMATION.

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

THE TSUNAMI FORECAST IS UNCHANGED IN THIS MESSAGE.

THE MAGNITUDE HAS BEEN REVISED TO 7.0


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* MAGNITUDE 7.0
* ORIGIN TIME 2337 UTC JAN 23 2021
* COORDINATES 62.0 SOUTH 55.3 WEST
* DEPTH 10 KM / 6 MILES
* LOCATION SOUTH SHETLAND ISLANDS


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.0 OCCURRED IN
THE SOUTH SHETLAND ISLANDS AT 2337 UTC ON SATURDAY JANUARY
23 2021.

* SMALL TSUNAMI WAVES HAVE BEEN OBSERVED.


TSUNAMI OBSERVATIONS
--------------------

* THE FOLLOWING ARE TSUNAMI WAVE OBSERVATIONS FROM COASTAL
AND/OR DEEP-OCEAN SEA LEVEL GAUGES AT THE INDICATED
LOCATIONS. THE MAXIMUM TSUNAMI HEIGHT IS MEASURED WITH
RESPECT TO THE NORMAL TIDE LEVEL.

GAUGE TIME OF MAXIMUM WAVE
COORDINATES MEASURE TSUNAMI PERIOD
GAUGE LOCATION LAT LON (UTC) HEIGHT (MIN)
-------------------------------------------------------------
ANTARCTICA BASE PRA 62.5S 59.7W 0021 0.04M/ 0.1FT 24
OHIGGINS CL 63.3S 57.9W 0024 0.04M/ 0.1FT 30


NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

* THIS WILL BE THE FINAL STATEMENT ISSUED FOR THIS EVENT UNLESS
NEW INFORMATION IS RECEIVED OR THE SITUATION CHANGES.

* AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
EARTHQUAKE.USGS.GOV.

* FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF HAWAII... AMERICAN SAMOA... GUAM... AND
CNMI SHOULD REFER TO PACIFIC TSUNAMI WARNING CENTER MESSAGES
SPECIFICALLY FOR THOSE PLACES THAT CAN BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF CALIFORNIA... OREGON... WASHINGTON...
BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S.
NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND
AT WWW.TSUNAMI.GOV.

$$

>

2021-01-23 23:54 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.3 occurred in the SOUTH shetland ISLANDS at 2337 UTC on saturday JANUARY 23 2021
  • Based on all available data there is no TSUNAMI threat from this earthquake

Original Message :

WEPA42 PHEB 232353
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
2353 UTC SAT JAN 23 2021

...PTWC TSUNAMI INFORMATION STATEMENT...


**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

THIS STATEMENT IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE
UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS
MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.

NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF
ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED
INFORMATION.

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* MAGNITUDE 7.3
* ORIGIN TIME 2337 UTC JAN 23 2021
* COORDINATES 62.0 SOUTH 55.3 WEST
* DEPTH 10 KM / 6 MILES
* LOCATION SOUTH SHETLAND ISLANDS


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.3 OCCURRED IN
THE SOUTH SHETLAND ISLANDS AT 2337 UTC ON SATURDAY JANUARY
23 2021.

* BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT
FROM THIS EARTHQUAKE.


RECOMMENDED ACTIONS
-------------------

* NO ACTION IS REQUIRED.


NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

* THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED OR THE SITUATION CHANGES.

* AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
EARTHQUAKE.USGS.GOV.

* FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF HAWAII... AMERICAN SAMOA... GUAM... AND
CNMI SHOULD REFER TO PACIFIC TSUNAMI WARNING CENTER MESSAGES
SPECIFICALLY FOR THOSE PLACES THAT CAN BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF CALIFORNIA... OREGON... WASHINGTON...
BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S.
NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND
AT WWW.TSUNAMI.GOV.

$$

>

2021-01-23 23:51 link


Original Message :

WEIO24 AMMC 232351
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 2351 UTC SATURDAY 23 JANUARY 2021
---------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES [NTWCs]
FROM: IOTWMS-TSP AUSTRALIA

NOTIFICATION:
IOTWMS-TSP AUSTRALIA HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 1
FOR THE INDIAN OCEAN, BASED ON THE FOLLOWING EARTHQUAKE EVENT:

MAGNITUDE: 6.9 MWP
DEPTH: 29KM
DATE: 23 JAN 2021
ORIGIN TIME: 2336 UTC
LATITUDE: 61.79S
LONGITUDE: 55.79W
LOCATION: SOUTH SHETLAND ISLANDS

TO VIEW THE BULLETIN GO TO THE IOTWMS-TSP AUSTRALIA WEBSITE AT:

http://reg.bom.gov.au/tsunami/rtsp/index.shtml

NOTE: THIS IS A RESTRICTED-ACCESS WEBSITE CONTAINING TECHNICAL DATA
FOR NATIONAL TSUNAMI WARNING CENTRES ONLY. IT IS NOT FOR GENERAL
PUBLIC ACCESS.

GENERAL PUBLIC INFORMATION FOR THIS EVENT IS AVAILABLE FROM:

JOINT AUSTRALIAN TSUNAMI WARNING CENTRE [JATWC]
BUREAU OF METEOROLOGY
MELBOURNE, AUSTRALIA
http://www.bom.gov.au/tsunami

END OF NOTIFICATION MESSAGE
---------------------------------------------------------------------

>

2021-01-23 23:50 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.3 occurred in the SOUTH shetland ISLANDS at 737 pm ast on saturday JANUARY 23 2021
  • Based on all available data there is no TSUNAMI threat to PUERTO rico the u s VIRGIN islands or the BRITISH VIRGIN ISLANDS from this earthquake

Original Message :

WECA42 PHEB 232349
TIBCAR

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
749 PM AST SAT JAN 23 2021

...NO TSUNAMI THREAT FROM A DISTANT EARTHQUAKE...


AUDIENCE
--------

* GOVERNMENT OFFICIALS... MEDIA... AND GENERAL PUBLIC OF PUERTO
RICO... THE U.S. VIRGIN ISLANDS... AND THE BRITISH VIRGIN
ISLANDS.


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.3 OCCURRED IN
THE SOUTH SHETLAND ISLANDS AT 737 PM AST ON SATURDAY JANUARY
23 2021.

* BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT TO
PUERTO RICO... THE U.S. VIRGIN ISLANDS... OR THE BRITISH
VIRGIN ISLANDS FROM THIS EARTHQUAKE.


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* THE FOLLOWING PARAMETERS ARE BASED ON A PRELIMINARY RAPID
ASSESSMENT OF THE EARTHQUAKE AND CHANGES MAY OCCUR.

* MAGNITUDE 7.3
* ORIGIN TIME 737 PM AST JAN 23 2021
* COORDINATES 62.0 SOUTH 55.3 WEST
* DEPTH 6 MILES / 10 KM
* LOCATION SOUTH SHETLAND ISLANDS


RECOMMENDED ACTIONS
-------------------

* NO ACTION IS REQUIRED.


IMPACTS
-------

* NO TSUNAMI IMPACTS ARE EXPECTED.


NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

* THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED OR THE SITUATION CHANGES.

>

2021-01-23 23:49 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • There is no TSUNAMI danger for the u s east coast the gulf of MEXICO STATES or the eastern coast of canada
  • Earthquakes of this size are known to generate tsunamis dangerous to shorelines near the source
  • An earthquake has occurred with parameters listed below

Original Message :

WEXX32 PAAQ 232347
TIBATE

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
647 PM EST Sat Jan 23 2021

...THIS IS A TSUNAMI INFORMATION STATEMENT FOR THE U.S. EAST COAST,
GULF OF MEXICO STATES, AND EASTERN CANADA...

EVALUATION
----------
* There is no tsunami danger for the U.S. east coast, the Gulf of
Mexico states, or the eastern coast of Canada.

* Earthquakes of this size are known to generate tsunamis
dangerous to shorelines near the source.

* An earthquake has occurred with parameters listed below.


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 7.3
* Origin Time 1837 EST Jan 23 2021
1737 CST Jan 23 2021
0737 AST Jan 23 2021
2337 UTC Jan 23 2021
* Coordinates 62.0 South 55.3 West
* Depth 6 miles
* Location in the southwestern Atlantic Ocean


ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Refer to the internet site tsunami.gov for more information.

* Caribbean coastal regions should refer to the Pacific
Tsunami Warning Center messages at tsunami.gov.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

$$

>