Tsunami Watch/Warning Issued by NWS
000
WEPA40 PHEB 190620
TSUPAC
TSUNAMI MESSAGE NUMBER 7
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0620 UTC FRI MAY 19 2023
...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 7.7
* ORIGIN TIME 0257 UTC MAY 19 2023
* COORDINATES 23.2 SOUTH 170.7 EAST
* DEPTH 10 KM / 6 MILES
* LOCATION SOUTHEAST OF LOYALTY ISLANDS
EVALUATION
----------
* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.7 OCCURRED
SOUTHEAST OF THE LOYALTY ISLANDS AT 0257 UTC ON FRIDAY MAY
19 2023.
* 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)
-------------------------------------------------------------
LENAKEL VU 19.5S 169.3E 0511 0.61M/ 2.0FT 04
EAST CAPE NZ 37.6S 178.2E 0544 0.11M/ 0.4FT 08
FISHING ROCK RAOUL 29.3S 177.9W 0535 0.15M/ 0.5FT 04
RAOUL IS BOAT COVE 29.3S 177.9W 0523 0.07M/ 0.2FT 06
NORTH CAPE NZ 34.4S 173.0E 0532 0.21M/ 0.7FT 06
HIENGHENE NEW CALED 20.7S 164.9E 0454 0.03M/ 0.1FT 20
THIO NEW CALEDONIA 21.6S 166.2E 0409 0.07M/ 0.2FT 20
MARE NEW CALEDONIA 21.5S 167.9E 0413 0.19M/ 0.6FT 06
OUINNE NEW CALEDONI 22.0S 166.7E 0406 0.20M/ 0.7FT 08
LIFOU NEW CALEDONIA 20.9S 167.3E 0400 0.12M/ 0.4FT 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.
$$