tsunami-ioc
Date: Wed, 1 Apr 2026 20:11:43 -0500
Subject: [Tsunami Message - IOC] PTWC FINAL TSUNAMI THREAT MESSAGE
TSUNAMI MESSAGE NUMBER 7
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0109 UTC THU APR 2 2026
....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 7.4
* ORIGIN TIME 2248 UTC APR 1 2026
* COORDINATES 1.2 NORTH 126.3 EAST
* DEPTH 35 KM / 22 MILES
* LOCATION MOLUCCA SEA
EVALUATION
----------
* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.4 OCCURRED IN
THE MOLUCCA SEA AT 2248 UTC ON WEDNESDAY APRIL 1 2026.
* 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)
-------------------------------------------------------------
DAVAO PH 7.2N 125.7E 0043 0.05M/ 0.2FT 26
TALENGEN SULAWESI I 3.6N 125.6E 2339 0.13M/ 0.4FT 10
BEO SULAWESI ID 4.2N 126.8E 2338 0.15M/ 0.5FT 08
KEMA SULAWESI ID 1.4N 125.1E 2317 0.65M/ 2.1FT 10
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.
$$
----- Text Attachment: ATT00001 -----
DISCLAIMER :The regional tsunami forecast information provided does not originate within IOC-UNESCO. IOC-UNESCO is transmitting this information on an unofficial basis. Tsunami Services Providers officially provide this information to the designated Tsunami Warning Focal Points / National Tsunami Warning Centres (TWFP/NTWC) of Member States. It is then, the responsibility of mandated national organisations operating within the legal framework of the sovereign nation in which they reside and serve, to provide alerts to their citizens and communities. UNESCO does not warrant, guarantee, or make any representations regarding the timeliness, currency, correctness, accuracy, reliability, or other aspect of the characteristics or use of the information. To unsubscribe from this list please visit
https://lists.unesco.org/wws/sigrequest/tsunami-information-ioc
----- End of Text Attachment -----
Subject: [Tsunami Message - IOC] PTWC FINAL TSUNAMI THREAT MESSAGE
TSUNAMI MESSAGE NUMBER 7
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0109 UTC THU APR 2 2026
....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 7.4
* ORIGIN TIME 2248 UTC APR 1 2026
* COORDINATES 1.2 NORTH 126.3 EAST
* DEPTH 35 KM / 22 MILES
* LOCATION MOLUCCA SEA
EVALUATION
----------
* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.4 OCCURRED IN
THE MOLUCCA SEA AT 2248 UTC ON WEDNESDAY APRIL 1 2026.
* 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)
-------------------------------------------------------------
DAVAO PH 7.2N 125.7E 0043 0.05M/ 0.2FT 26
TALENGEN SULAWESI I 3.6N 125.6E 2339 0.13M/ 0.4FT 10
BEO SULAWESI ID 4.2N 126.8E 2338 0.15M/ 0.5FT 08
KEMA SULAWESI ID 1.4N 125.1E 2317 0.65M/ 2.1FT 10
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.
$$
----- Text Attachment: ATT00001 -----
DISCLAIMER :The regional tsunami forecast information provided does not originate within IOC-UNESCO. IOC-UNESCO is transmitting this information on an unofficial basis. Tsunami Services Providers officially provide this information to the designated Tsunami Warning Focal Points / National Tsunami Warning Centres (TWFP/NTWC) of Member States. It is then, the responsibility of mandated national organisations operating within the legal framework of the sovereign nation in which they reside and serve, to provide alerts to their citizens and communities. UNESCO does not warrant, guarantee, or make any representations regarding the timeliness, currency, correctness, accuracy, reliability, or other aspect of the characteristics or use of the information. To unsubscribe from this list please visit
https://lists.unesco.org/wws/sigrequest/tsunami-information-ioc
----- End of Text Attachment -----