M 7.4 in Taiwan on 02 Apr 2024 23:58 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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2024-04-03 03:00 message from JMA link


Original Message :

WEPA40 RJTD 030300
TSUNAMI BULLETIN ISSUED BY JMA AT 0300Z 3 APR

ORIGIN TIME 2358Z 2 APR
PRELIMINARY EPICENTER LAT 23.8 N. LON 121.6 E.
TAIWAN REGION
FOCAL DEPTH 23 KM MAG 7.7

ALL TSUNAMI WARNINGS WERE LIFTED AT 0300Z 3 APR
NO FURTHER ACTION WILL BE TAKEN=

2024-04-03 02:03 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.5 occurred in TAIWAN at 2358 UTC on tuesday APRIL 2 2024
  • Based on all available data the TSUNAMI threat from this earthquake has now passed
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)
Hualien Tw24121.600: 08110
Ishigakijima Jp24.3124.201: 340.1614
Chengong Tw23.1121.400: 410.4518
Longdong Tw25.1121.900: 290.2106


Original Message :

WEPA40 PHEB 030202
TSUPAC

TSUNAMI MESSAGE NUMBER 4
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0158 UTC WED APR 3 2024

...PTWC FINAL TSUNAMI THREAT MESSAGE...


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

THIS MESSAGE 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.


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

* MAGNITUDE 7.5
* ORIGIN TIME 2358 UTC APR 2 2024
* COORDINATES 23.8 NORTH 121.7 EAST
* DEPTH 11 KM / 7 MILES
* LOCATION TAIWAN


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED IN
TAIWAN AT 2358 UTC ON TUESDAY APRIL 2 2024.

* BASED ON ALL AVAILABLE DATA... THE TSUNAMI THREAT FROM THIS
EARTHQUAKE HAS NOW PASSED.


TSUNAMI THREAT FORECAST...UPDATED
---------------------------------

* THE TSUNAMI THREAT HAS NOW LARGELY PASSED.


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

* GOVERNMENT AGENCIES RESPONSIBLE FOR ANY IMPACTED COASTAL
AREAS SHOULD MONITOR CONDITIONS AT THE COAST TO DETERMINE IF
AND WHEN IT IS SAFE TO RESUME NORMAL ACTIVITIES.

* PERSONS LOCATED NEAR IMPACTED COASTAL AREAS SHOULD STAY ALERT
FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM LOCAL
AUTHORITIES.

* REMAIN OBSERVANT AND EXERCISE NORMAL CAUTION NEAR THE SEA.


POTENTIAL IMPACTS
-----------------

* MINOR SEA LEVEL FLUCTUATIONS OF UP TO 0.3 METERS ABOVE AND
BELOW THE NORMAL TIDE MAY CONTINUE OVER THE NEXT FEW HOURS.


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)
-------------------------------------------------------------
HUALIEN TW 24.0N 121.6E 0008 1.00M/ 3.3FT 10
ISHIGAKIJIMA JP 24.3N 124.2E 0134 0.16M/ 0.5FT 14
CHENGONG TW 23.1N 121.4E 0041 0.45M/ 1.5FT 18
LONGDONG TW 25.1N 121.9E 0029 0.21M/ 0.7FT 06


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.

$$

2024-04-03 01:40 message from JMA link


Original Message :

WEPA40 RJTD 030140
TSUNAMI BULLETIN ISSUED BY JMA AT 0140Z 3 APR

ORIGIN TIME 2358Z 2 APR
PRELIMINARY EPICENTER LAT 23.8 N. LON 121.6 E.
TAIWAN REGION
FOCAL DEPTH 23 KM MAG 7.7

TSUNAMI ADVISORIES ARE IN EFFECT
FOR THE FOLLOWING COASTAL AREAS OF JAPAN:
NANSEI-SHOTO ISLANDS
=

2024-04-03 01:11 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.5 occurred in TAIWAN at 2358 UTC on tuesday APRIL 2 2024
  • TSUNAMI waves have been observed
  • Based on all available data hazardous TSUNAMI waves are forecast for some coasts
Threat Forecast

  • TSUNAMI waves reaching 1 to 3 meters above the tide level are possible along some coasts of china... and taiwan.
  • TSUNAMI waves reaching 0.3 to 1 meters above the tide level are possible for some coasts of japan.
  • TSUNAMI waves are forecast to be less than 0.3 meters above the tide level for the coasts of guam... indonesia... NORTHERN marianas... palau... philippines... REPUBLIC of korea... vietnam... and yap.
  • Actual amplitudes at the coast MAY vary from forecast amplitudes due to uncertainties in the forecast and local features. in particular maximum TSUNAMI amplitudes on atolls and at locations with fringing or barrier reefs will likely be much smaller than the forecast indicates.
  • For other areas covered by this product a forecast has not yet been computed. the forecast will be expanded if necessary in subsequent products.
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)
Chengong Tw23.1121.400: 410.4518
Ishigakijima Jp24.3124.200: 350.1212
Longdong Tw25.1121.900: 290.2106


Original Message :

WEPA40 PHEB 030110
TSUPAC

TSUNAMI MESSAGE NUMBER 3
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0108 UTC WED APR 3 2024

...PTWC TSUNAMI THREAT MESSAGE...


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

THIS MESSAGE 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.


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

* MAGNITUDE 7.5
* ORIGIN TIME 2358 UTC APR 2 2024
* COORDINATES 23.8 NORTH 121.7 EAST
* DEPTH 11 KM / 7 MILES
* LOCATION TAIWAN


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED IN
TAIWAN AT 2358 UTC ON TUESDAY APRIL 2 2024.

* TSUNAMI WAVES HAVE BEEN OBSERVED.

* BASED ON ALL AVAILABLE DATA... HAZARDOUS TSUNAMI WAVES ARE
FORECAST FOR SOME COASTS.


TSUNAMI THREAT FORECAST
-----------------------

* TSUNAMI WAVES REACHING 1 TO 3 METERS ABOVE THE TIDE LEVEL ARE
POSSIBLE ALONG SOME COASTS OF

CHINA... AND TAIWAN.


* TSUNAMI WAVES REACHING 0.3 TO 1 METERS ABOVE THE TIDE LEVEL
ARE POSSIBLE FOR SOME COASTS OF

JAPAN.


* TSUNAMI WAVES ARE FORECAST TO BE LESS THAN 0.3 METERS ABOVE
THE TIDE LEVEL FOR THE COASTS OF

GUAM... INDONESIA... NORTHERN MARIANAS... PALAU...
PHILIPPINES... REPUBLIC OF KOREA... VIETNAM... AND YAP.


* ACTUAL AMPLITUDES AT THE COAST MAY VARY FROM FORECAST
AMPLITUDES DUE TO UNCERTAINTIES IN THE FORECAST AND LOCAL
FEATURES. IN PARTICULAR MAXIMUM TSUNAMI AMPLITUDES ON ATOLLS
AND AT LOCATIONS WITH FRINGING OR BARRIER REEFS WILL LIKELY
BE MUCH SMALLER THAN THE FORECAST INDICATES.

* FOR OTHER AREAS COVERED BY THIS PRODUCT A FORECAST HAS NOT
YET BEEN COMPUTED. THE FORECAST WILL BE EXPANDED IF
NECESSARY IN SUBSEQUENT PRODUCTS.


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

* GOVERNMENT AGENCIES RESPONSIBLE FOR THREATENED COASTAL AREAS
SHOULD TAKE ACTION TO INFORM AND INSTRUCT ANY COASTAL
POPULATIONS AT RISK IN ACCORDANCE WITH THEIR OWN
EVALUATION... PROCEDURES AND THE LEVEL OF THREAT.

* PERSONS LOCATED IN THREATENED COASTAL AREAS SHOULD STAY ALERT
FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM NATIONAL AND
LOCAL AUTHORITIES.


ESTIMATED TIMES OF ARRIVAL
--------------------------

* ESTIMATED TIMES OF ARRIVAL -ETA- OF THE INITIAL TSUNAMI WAVE
FOR PLACES WITHIN THREATENED REGIONS 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
WAVES CAN BE FIVE MINUTES TO ONE HOUR.

LOCATION REGION COORDINATES ETA(UTC)
------------------------------------------------------------
TAITUNG TAIWAN 22.7N 121.2E 0017 04/03
CHILUNG TAIWAN 25.2N 121.8E 0040 04/03
KAOHSIUNG TAIWAN 22.5N 120.3E 0102 04/03
OKINAWA JAPAN 26.2N 127.8E 0129 04/03
HOMEL TAIWAN 24.2N 120.4E 0239 04/03
WENZHOU CHINA 27.8N 121.2E 0329 04/03
QUANZHOU CHINA 24.8N 118.8E 0351 04/03
HONG KONG CHINA 22.3N 114.2E 0441 04/03


POTENTIAL IMPACTS
-----------------

* A TSUNAMI IS A SERIES OF WAVES. THE TIME BETWEEN WAVE CRESTS
CAN VARY FROM 5 MINUTES TO AN HOUR. THE HAZARD MAY PERSIST
FOR MANY HOURS OR LONGER AFTER THE INITIAL WAVE.

* IMPACTS CAN VARY SIGNIFICANTLY FROM ONE SECTION OF COAST TO
THE NEXT DUE TO LOCAL BATHYMETRY AND THE SHAPE AND ELEVATION
OF THE SHORELINE.

* IMPACTS CAN ALSO VARY DEPENDING UPON THE STATE OF THE TIDE AT
THE TIME OF THE MAXIMUM TSUNAMI WAVES.

* PERSONS CAUGHT IN THE WATER OF A TSUNAMI MAY DROWN... BE
CRUSHED BY DEBRIS IN THE WATER... OR BE SWEPT OUT TO SEA.


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)
-------------------------------------------------------------
CHENGONG TW 23.1N 121.4E 0041 0.45M/ 1.5FT 18
ISHIGAKIJIMA JP 24.3N 124.2E 0035 0.12M/ 0.4FT 12
LONGDONG TW 25.1N 121.9E 0029 0.21M/ 0.7FT 06


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

* THE NEXT MESSAGE WILL BE ISSUED IN ONE HOUR... OR SOONER IF
THE SITUATION WARRANTS.

* 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.

$$

2024-04-03 00:56 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • There is no TSUNAMI danger for the u s west coast BRITISH columbia or alaska
  • Some of the areas listed above MAY experience non-damaging sea level changes
  • Sea level observations indicate a TSUNAMI was generated
  • Preliminary earthquake parameters
  • The following parameters are based on a rapid preliminary assessment of the earthquake and changes MAY occur
  • Magnitude 7.5
  • Origin time 1558 akdt apr 02.2024 1658 pdt apr 02 2024 2358 UTC apr 02
  • Coordinates 23.8 north 121 7 east
  • Depth 7 miles
  • Location near TAIWAN observations of TSUNAMI activity - updated
  • Observed max TSUNAMI height is the highest recorded water level above the tide level up to the time of this message
  • Time observed max site of measurement TSUNAMI height Ishigakijima JAPAN 1729 pdt apr 2 0.5ft additional information and next update
  • Refer to the internet site tsunami
  • Gov for more information
  • Pacific coastal regions outside california oregon washington BRITISH columbia and alaska should refer to the pacific TSUNAMI warning center messages at tsunami
  • Gov
  • This will be the final u s national TSUNAMI warning center message issued for this event unless additional information becomes available

Original Message :

WEAK53 PAAQ 030055
TIBAK1

Tsunami Information Statement Number 2
NWS National Tsunami Warning Center Palmer AK
555 PM PDT Tue Apr 2 2024

UPDATES
-------
* Updated observations
* Revised forecast information


...THIS IS A TSUNAMI INFORMATION STATEMENT FOR ALASKA, BRITISH
COLUMBIA, WASHINGTON, OREGON AND CALIFORNIA...

EVALUATION
----------
* There is no tsunami danger for the U.S. West Coast, British
Columbia, or Alaska.

* Some of the areas listed above may experience non-damaging
sea level changes.

* Sea level observations indicate a tsunami was generated.


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

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

* Magnitude 7.5
* Origin Time 1558 AKDT Apr 02 2024
1658 PDT Apr 02 2024
2358 UTC Apr 02 2024
* Coordinates 23.8 North 121.7 East
* Depth 7 miles
* Location near Taiwan


OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.

TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Ishigakijima Japan 1729 PDT Apr 2 0.5ft


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

* Pacific coastal regions outside California, Oregon, Washington,
British Columbia, and Alaska should refer to the Pacific Tsunami
Warning Center messages at tsunami.gov.

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

$$

2024-04-03 00:43 message from JMA link

Key information extracted from original GTS message :
Evaluation

  • There is a possibility of a destructive local TSUNAMI near the epicenter

Original Message :

WEPA40 RJTD 030043
TSUNAMI BULLETIN NUMBER 002
ISSUED BY NWPTAC(JMA)
ISSUED AT 0043Z 03 APR 2024
PART 01 OF 01 PARTS

HYPOCENTRAL PARAMETERS (REVISION)
ORIGIN TIME:2358Z 02 APR 2024
PRELIMINARY EPICENTER:LAT23.8NORTH LON121.7EAST
TAIWAN
TAIWAN
MAG:7.4 (MW)

EVALUATION
THERE IS A POSSIBILITY OF A DESTRUCTIVE LOCAL TSUNAMI
NEAR THE EPICENTER

THIS BULLETIN IS FOR
COASTS OF EAST CHINA SEA (CANCELLATION)
TAIWAN
EAST COASTS OF PHILIPPINES

ESTIMATED TSUNAMI ARRIVAL TIMES AND WAVE AMPLITUDES
COASTS OF EAST CHINA SEA
LOCATION COORDINATES ARRIVAL TIME AMPL
WENZHOU 27.8N 121.2E (CANCELLATION)
TAIWAN
LOCATION COORDINATES ARRIVAL TIME AMPL
CHILUNG 25.2N 121.8E (CANCELLATION)
HUALIEN 24.0N 121.6E 2359Z 02 APR 1-3M (REVISION)
TAITUNG 22.7N 121.2E 0009Z 03 APR 0.3-1M (REVISION)
EAST COASTS OF PHILIPPINES
LOCATION COORDINATES ARRIVAL TIME AMPL
BASCO 20.4N 122.0E 0031Z 03 APR 0.3-1M (REVISION)
PALANAN 17.2N 122.6E (CANCELLATION)
LAOANG 12.6N 125.0E (CANCELLATION)

AMPL - MAXIMUM AMPLITUDE IN METERS FROM THE
UNDISTURBED SEA LEVEL TO THE CREST

IN SOME COASTAL AREAS (PARTICULARLY NEAR THE EPICENTER),
TSUNAMI WAVES MAY BE HIGHER AND/OR ARRIVE EARLIER THAN
ESTIMATED FOR NEARBY FORECAST POINTS.
AUTHORITIES SHOULD BE AWARE OF THIS POSSIBILITY.

THE EVALUATION OF TSUNAMIGENIC POTENTIAL AND ESTIMATED
ARRIVAL TIMES FOR TSUNAMI WAVES MAY ALSO DIFFER FROM
THOSE OF PTWC DUE TO DIFFERENCES IN ESTIMATED EARTHQUAKE
PARAMETERS AND THE TSUNAMI FORECAST MODEL.
AUTHORITIES SHOULD REFER TO EARLIER ARRIVAL TIMES
FOR GREATEST SAFETY.

MEASUREMENTS OR REPORTS OF TSUNAMI
LOCATION COORDINATES ARRIVAL TIME AMPL
ISHIGAKIJIMA 24.3N 124.2E
MAXIMUM TSUNAMI WAVE 0032Z 03 APR 0.0M

MAXIMUM TSUNAMI WAVE - HALF THE AMPLITUDE FROM THE TROUGH
TO THE CREST

THIS WILL BE THE FINAL BULLETIN UNLESS CHANGES IN THE POTENTIAL
FOR TSUNAMI GENERATION ARE DEEMED POSSIBLE BASED ON EARTHQUAKE
RE-EVALUATION OR REPORTS INDICATING TSUNAMI OBSERVATION ARE
RECEIVED.

=

2024-04-03 00:38 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.5 occurred in TAIWAN at 2358 UTC on tuesday APRIL 2 2024
  • Based on all available data hazardous TSUNAMI waves are forecast for some coasts

Original Message :

WEPA40 PHEB 030037
TSUPAC

TSUNAMI MESSAGE NUMBER 2
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0037 UTC WED APR 3 2024

...PTWC TSUNAMI THREAT MESSAGE...


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

THIS MESSAGE 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 UPDATED IN THIS MESSAGE.


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

* MAGNITUDE 7.5
* ORIGIN TIME 2358 UTC APR 2 2024
* COORDINATES 23.8 NORTH 121.7 EAST
* DEPTH 11 KM / 7 MILES
* LOCATION TAIWAN


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED IN
TAIWAN AT 2358 UTC ON TUESDAY APRIL 2 2024.

* BASED ON ALL AVAILABLE DATA... HAZARDOUS TSUNAMI WAVES ARE
FORECAST FOR SOME COASTS.


TSUNAMI THREAT FORECAST...UPDATED
---------------------------------

* TSUNAMI WAVES REACHING 1 TO 3 METERS ABOVE THE TIDE LEVEL ARE
POSSIBLE ALONG SOME COASTS OF

CHINA... AND TAIWAN.


* TSUNAMI WAVES REACHING 0.3 TO 1 METERS ABOVE THE TIDE LEVEL
ARE POSSIBLE FOR SOME COASTS OF

JAPAN.


* TSUNAMI WAVES ARE FORECAST TO BE LESS THAN 0.3 METERS ABOVE
THE TIDE LEVEL FOR THE COASTS OF

GUAM... INDONESIA... NORTHERN MARIANAS... PALAU...
PHILIPPINES... REPUBLIC OF KOREA... VIETNAM... AND YAP.


* ACTUAL AMPLITUDES AT THE COAST MAY VARY FROM FORECAST
AMPLITUDES DUE TO UNCERTAINTIES IN THE FORECAST AND LOCAL
FEATURES. IN PARTICULAR MAXIMUM TSUNAMI AMPLITUDES ON ATOLLS
AND AT LOCATIONS WITH FRINGING OR BARRIER REEFS WILL LIKELY
BE MUCH SMALLER THAN THE FORECAST INDICATES.

* FOR OTHER AREAS COVERED BY THIS PRODUCT A FORECAST HAS NOT
YET BEEN COMPUTED. THE FORECAST WILL BE EXPANDED IF
NECESSARY IN SUBSEQUENT PRODUCTS.


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

* GOVERNMENT AGENCIES RESPONSIBLE FOR THREATENED COASTAL AREAS
SHOULD TAKE ACTION TO INFORM AND INSTRUCT ANY COASTAL
POPULATIONS AT RISK IN ACCORDANCE WITH THEIR OWN
EVALUATION... PROCEDURES AND THE LEVEL OF THREAT.

* PERSONS LOCATED IN THREATENED COASTAL AREAS SHOULD STAY ALERT
FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM NATIONAL AND
LOCAL AUTHORITIES.


ESTIMATED TIMES OF ARRIVAL
--------------------------

* ESTIMATED TIMES OF ARRIVAL -ETA- OF THE INITIAL TSUNAMI WAVE
FOR PLACES WITHIN THREATENED REGIONS 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
WAVES CAN BE FIVE MINUTES TO ONE HOUR.

LOCATION REGION COORDINATES ETA(UTC)
------------------------------------------------------------
HUALIEN TAIWAN 24.0N 121.7E 0001 04/03
TAITUNG TAIWAN 22.7N 121.2E 0017 04/03
CHILUNG TAIWAN 25.2N 121.8E 0040 04/03
KAOHSIUNG TAIWAN 22.5N 120.3E 0102 04/03
OKINAWA JAPAN 26.2N 127.8E 0129 04/03
HOMEL TAIWAN 24.2N 120.4E 0239 04/03
WENZHOU CHINA 27.8N 121.2E 0329 04/03
QUANZHOU CHINA 24.8N 118.8E 0351 04/03
HONG KONG CHINA 22.3N 114.2E 0441 04/03


POTENTIAL IMPACTS
-----------------

* A TSUNAMI IS A SERIES OF WAVES. THE TIME BETWEEN WAVE CRESTS
CAN VARY FROM 5 MINUTES TO AN HOUR. THE HAZARD MAY PERSIST
FOR MANY HOURS OR LONGER AFTER THE INITIAL WAVE.

* IMPACTS CAN VARY SIGNIFICANTLY FROM ONE SECTION OF COAST TO
THE NEXT DUE TO LOCAL BATHYMETRY AND THE SHAPE AND ELEVATION
OF THE SHORELINE.

* IMPACTS CAN ALSO VARY DEPENDING UPON THE STATE OF THE TIDE AT
THE TIME OF THE MAXIMUM TSUNAMI WAVES.

* PERSONS CAUGHT IN THE WATER OF A TSUNAMI MAY DROWN... BE
CRUSHED BY DEBRIS IN THE WATER... OR BE SWEPT OUT TO SEA.


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

* THE NEXT MESSAGE WILL BE ISSUED IN ONE HOUR... OR SOONER IF
THE SITUATION WARRANTS.

* 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.

$$

2024-04-03 00:13 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.5 occurred in TAIWAN at 1258 pm sst on tuesday APRIL 2 2024
  • Based on all available data there is no TSUNAMI threat to AMERICAN SAMOA from this earthquake

Original Message :

WEZS42 PHEB 030010
TIBPPG

ASZ001>004-030210-

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
110 PM SST TUE APR 02 2024

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


AUDIENCE
--------
EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED IN
TAIWAN AT 1258 PM SST ON TUESDAY APRIL 2 2024.

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


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

* NO ACTION IS REQUIRED.


POTENTIAL IMPACTS
-----------------

* NO TSUNAMI IMPACTS ARE EXPECTED.


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

* MAGNITUDE 7.5
* ORIGIN TIME 1258 PM SST APR 02 2024
* COORDINATES 23.8 NORTH 121.7 EAST
* DEPTH 7 MILES
* LOCATION TAIWAN


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

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

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

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

$$

2024-04-03 00:13 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.5 occurred in TAIWAN at 958 am chst on wednesday APRIL 3 2024
  • Based on all available data there is no TSUNAMI threat to guam rota tinian or saipan from this earthquake

Original Message :

WEGM42 PHEB 030011
TIBGUM

GUZ001>004-030211-

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
1011 AM CHST WED APR 03 2024

...NO TSUNAMI THREAT TO GUAM/CNMI FROM A DISTANT EARTHQUAKE...


AUDIENCE
--------
EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED IN
TAIWAN AT 958 AM CHST ON WEDNESDAY APRIL 3 2024.

* BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT TO
GUAM... ROTA... TINIAN OR SAIPAN FROM THIS EARTHQUAKE.


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

* NO ACTION IS REQUIRED.


POTENTIAL IMPACTS
-----------------

* NO TSUNAMI IMPACTS ARE EXPECTED.


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

* MAGNITUDE 7.5
* ORIGIN TIME 958 AM CHST APR 03 2024
* COORDINATES 23.8 NORTH 121.7 EAST
* DEPTH 7 MILES
* LOCATION TAIWAN


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

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

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

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

$$

2024-04-03 00:12 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • Earthquakes of this size are known to generate tsunamis potentially dangerous to coasts outside the source region
  • The u s national TSUNAMI warning center is analyzing the event to determine the level of danger
  • More information will be issued as it becomes available
  • This earthquake has the potential to generate a destructive TSUNAMI in the source region
  • Preliminary earthquake parameters
  • The following parameters are based on a rapid preliminary assessment of the earthquake and changes MAY occur
  • Magnitude 7.5
  • Origin time 1558 akdt apr 02.2024 1658 pdt apr 02 2024 2358 UTC apr 02
  • Coordinates 23.8 north 121 7 east
  • Depth 7 miles
  • Location near TAIWAN additional information and next update
  • Refer to the internet site tsunami
  • Gov for more information
  • Pacific coastal regions outside california oregon washington BRITISH columbia and alaska should refer to the pacific TSUNAMI warning center messages at tsunami
  • Gov
  • Messages will be issued hourly to keep you informed of the progress of this event

Original Message :

WEAK53 PAAQ 030010
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
510 PM PDT Tue Apr 2 2024

...THIS IS A TSUNAMI INFORMATION STATEMENT FOR ALASKA, BRITISH
COLUMBIA, WASHINGTON, OREGON AND CALIFORNIA...

EVALUATION
----------
* Earthquakes of this size are known to generate tsunamis
potentially dangerous to coasts outside the source region.

* The U.S. National Tsunami Warning Center is analyzing
the event to determine the level of danger.

* More information will be issued as it becomes available.

* This earthquake has the potential to generate a destructive
tsunami in the source region.


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

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

* Magnitude 7.5
* Origin Time 1558 AKDT Apr 02 2024
1658 PDT Apr 02 2024
2358 UTC Apr 02 2024
* Coordinates 23.8 North 121.7 East
* Depth 7 miles
* Location near Taiwan


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

* Pacific coastal regions outside California, Oregon, Washington,
British Columbia, and Alaska should refer to the Pacific Tsunami
Warning Center messages at tsunami.gov.

* Messages will be issued hourly to keep you informed of the
progress of this event.

$$

2024-04-03 00:10 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.5 occurred in TAIWAN at 2358 UTC on tuesday APRIL 2 2024
  • Based on the preliminary earthquake parameters hazardous TSUNAMI waves are possible for coasts located within 300 km of the earthquake epicenter
Threat Forecast

  • Hazardous TSUNAMI waves from this earthquake are possible within 300 km of the epicenter along the coasts of taiwan.

Original Message :

WEPA40 PHEB 030009
TSUPAC

TSUNAMI MESSAGE NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0008 UTC WED APR 3 2024

...PTWC TSUNAMI THREAT MESSAGE...


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

THIS MESSAGE 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 - FROM JMA
--------------------------------------------

* MAGNITUDE 7.5
* ORIGIN TIME 2358 UTC APR 2 2024
* COORDINATES 23.8 NORTH 121.7 EAST
* DEPTH 11 KM / 7 MILES
* LOCATION TAIWAN


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED IN
TAIWAN AT 2358 UTC ON TUESDAY APRIL 2 2024.

* BASED ON THE PRELIMINARY EARTHQUAKE PARAMETERS... HAZARDOUS
TSUNAMI WAVES ARE POSSIBLE FOR COASTS LOCATED WITHIN 300 KM
OF THE EARTHQUAKE EPICENTER.


TSUNAMI THREAT FORECAST
-----------------------

* HAZARDOUS TSUNAMI WAVES FROM THIS EARTHQUAKE ARE POSSIBLE
WITHIN 300 KM OF THE EPICENTER ALONG THE COASTS OF

TAIWAN.


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

* GOVERNMENT AGENCIES RESPONSIBLE FOR THREATENED COASTAL AREAS
SHOULD TAKE ACTION TO INFORM AND INSTRUCT ANY COASTAL
POPULATIONS AT RISK IN ACCORDANCE WITH THEIR OWN
EVALUATION... PROCEDURES AND THE LEVEL OF THREAT.

* PERSONS LOCATED IN THREATENED COASTAL AREAS SHOULD STAY ALERT
FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM NATIONAL AND
LOCAL AUTHORITIES.


ESTIMATED TIMES OF ARRIVAL
--------------------------

* ESTIMATED TIMES OF ARRIVAL -ETA- OF THE INITIAL TSUNAMI WAVE
FOR PLACES WITH A POTENTIAL TSUNAMI THREAT. 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
WAVES CAN BE FIVE MINUTES TO ONE HOUR.

LOCATION REGION COORDINATES ETA(UTC)
------------------------------------------------------------
HUALIEN TAIWAN 24.0N 121.7E 0001 04/03
TAITUNG TAIWAN 22.7N 121.2E 0017 04/03
CHILUNG TAIWAN 25.2N 121.8E 0040 04/03
KAOHSIUNG TAIWAN 22.5N 120.3E 0102 04/03
HOMEL TAIWAN 24.2N 120.4E 0239 04/03


POTENTIAL IMPACTS
-----------------

* A TSUNAMI IS A SERIES OF WAVES. THE TIME BETWEEN WAVE CRESTS
CAN VARY FROM 5 MINUTES TO AN HOUR. THE HAZARD MAY PERSIST
FOR MANY HOURS OR LONGER AFTER THE INITIAL WAVE.

* IMPACTS CAN VARY SIGNIFICANTLY FROM ONE SECTION OF COAST TO
THE NEXT DUE TO LOCAL BATHYMETRY AND THE SHAPE AND ELEVATION
OF THE SHORELINE.

* IMPACTS CAN ALSO VARY DEPENDING UPON THE STATE OF THE TIDE AT
THE TIME OF THE MAXIMUM TSUNAMI WAVES.

* PERSONS CAUGHT IN THE WATER OF A TSUNAMI MAY DROWN... BE
CRUSHED BY DEBRIS IN THE WATER... OR BE SWEPT OUT TO SEA.


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

* THE NEXT MESSAGE WILL BE ISSUED IN ONE HOUR... OR SOONER IF
THE SITUATION WARRANTS.

* 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.

$$

2024-04-03 00:08 link


Original Message :

WEIO24 AMMC 022358
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 0008 UTC Wednesday 03 April 2024
---------------------------------------------------------------------
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: 7.3 MWP
DEPTH: 21KM
DATE: 02 APR 2024
ORIGIN TIME: 2358 UTC
LATITUDE: 23.842N
LONGITUDE: 121.653E
LOCATION: Taiwan

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
---------------------------------------------------------------------

2024-04-03 00:08 link


Original Message :

WEIO22 WIIX 030008
TSP-INATEWS-20240403-0008-001
--------------------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER INDONESIA (INATEWS-BMKG)
ISSUED AT 0008 UTC, APR 03, 2024
--------------------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES (NTWC)
FROM: IOTWMS-TSP INDONESIA

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

MAGNITUDE : 7.3 MWP
DEPTH : 33KM
DATE : 02 APR 2024
ORIGIN TIME: 23:58:11 UTC
LATITUDE : 23.84N
LONGITUDE : 121.61E
LOCATION : TAIWAN

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

HTTP://RTSP.BMKG.GO.ID

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

GENERAL PUBLIC INFORMATION FOR THIS EVENT IS AVAILABLE FROM:

INDONESIA TSUNAMI EARLY WARNING SYSTEM (INATEWS)
THE AGENCY FOR METEOROLOGY CLIMATOLOGY AND GEOPHYSICS (BMKG)
ADDRESS: JL. ANGKASA I NO.2 KEMAYORAN, JAKARTA, INDONESIA, 10720
TEL.: 62 (21) 65867045
FAX: 62 (21) 6546316
P.O. BOX 3540 JAKARTA
WEBSITE: HTTP://RTSP.BMKG.GO.ID/PUBLICBULL.PHP
EMAIL : INARTSP@BMKG.GO.ID
MONITRTWP@BMKG.GO.ID

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

2024-04-03 00:08 message from JMA link

Key information extracted from original GTS message :
Evaluation

  • There is a possibility of a destructive local TSUNAMI near the epicenter

Original Message :

WEPA40 RJTD 030006
TSUNAMI BULLETIN NUMBER 001
ISSUED BY NWPTAC(JMA)
ISSUED AT 0006Z 03 APR 2024
PART 01 OF 01 PARTS

HYPOCENTRAL PARAMETERS
ORIGIN TIME:2358Z 02 APR 2024
PRELIMINARY EPICENTER:LAT23.8NORTH LON121.7EAST
TAIWAN
TAIWAN
MAG:7.5 (MJMA)

EVALUATION
THERE IS A POSSIBILITY OF A DESTRUCTIVE LOCAL TSUNAMI
NEAR THE EPICENTER

THIS BULLETIN IS FOR
COASTS OF EAST CHINA SEA
TAIWAN
EAST COASTS OF PHILIPPINES

ESTIMATED TSUNAMI ARRIVAL TIMES AND WAVE AMPLITUDES
COASTS OF EAST CHINA SEA
LOCATION COORDINATES ARRIVAL TIME AMPL
WENZHOU 27.8N 121.2E 0226Z 03 APR 0.3-1M
TAIWAN
LOCATION COORDINATES ARRIVAL TIME AMPL
CHILUNG 25.2N 121.8E 0028Z 03 APR 0.3-1M
HUALIEN 24.0N 121.6E 2359Z 02 APR 5-10M
TAITUNG 22.7N 121.2E 0015Z 03 APR 1-3M
EAST COASTS OF PHILIPPINES
LOCATION COORDINATES ARRIVAL TIME AMPL
BASCO 20.4N 122.0E 0033Z 03 APR 1-3M
PALANAN 17.2N 122.6E 0100Z 03 APR 0.3-1M
LAOANG 12.6N 125.0E 0142Z 03 APR 0.3-1M

AMPL - MAXIMUM AMPLITUDE IN METERS FROM THE
UNDISTURBED SEA LEVEL TO THE CREST

IN SOME COASTAL AREAS (PARTICULARLY NEAR THE EPICENTER),
TSUNAMI WAVES MAY BE HIGHER AND/OR ARRIVE EARLIER THAN
ESTIMATED FOR NEARBY FORECAST POINTS.
AUTHORITIES SHOULD BE AWARE OF THIS POSSIBILITY.

THE EVALUATION OF TSUNAMIGENIC POTENTIAL AND ESTIMATED
ARRIVAL TIMES FOR TSUNAMI WAVES MAY ALSO DIFFER FROM
THOSE OF PTWC DUE TO DIFFERENCES IN ESTIMATED EARTHQUAKE
PARAMETERS AND THE TSUNAMI FORECAST MODEL.
AUTHORITIES SHOULD REFER TO EARLIER ARRIVAL TIMES

2024-04-03 00:01 message from JMA link


Original Message :

WEPA40 RJTD 030001
TSUNAMI BULLETIN ISSUED BY JMA AT 0001Z 3 APR

ORIGIN TIME 2358Z 2 APR
PRELIMINARY EPICENTER LAT 23.8 N. LON 121.7 E.
TAIWAN REGION
FOCAL DEPTH 0 KM MAG 7.5

TSUNAMI WARNINGS ARE IN EFFECT
FOR THE FOLLOWING COASTAL AREAS OF JAPAN:
NANSEI-SHOTO ISLANDS
=