ZCZC WEPA40 PHEB 101828 TSUPAC TSUNAMI MESSAGE NUMBER 7 NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI 1826 UTC WED FEB 10 2021 ...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 1320 UTC FEB 10 2021 * COORDINATES 23.1 SOUTH 171.5 EAST * DEPTH 33 KM / 20 MILES * LOCATION SOUTHEAST OF LOYALTY ISLANDS EVALUATION ---------- * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.7 OCCURRED SOUTHEAST OF THE LOYALTY ISLANDS AT 1320 UTC ON WEDNESDAY FEBRUARY 10 2021. * 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) ------------------------------------------------------------- APIA UPOLU WS 13.8S 171.8W 1733 0.03M/ 0.1FT 12 FONGAFALE TV 8.5S 179.2E 1730 0.05M/ 0.2FT 06 GREAT BARRIER IS NZ 36.2S 175.5E 1653 0.75M/ 2.5FT 12 DART 01000 38.2S 179.8W 1613 0.01M/ 0.0FT 08 KINGSTON NORFOLK IS 29.1S 168.0E 1550 0.48M/ 1.6FT 06 EAST CAPE NZ 37.6S 178.2E 1609 0.20M/ 0.7FT 06 NORTH CAPE NZ 34.4S 173.0E 1553 0.22M/ 0.7FT 06 LIFOU NEW CALEDONIA 20.9S 167.3E 1522 0.19M/ 0.6FT 08 MARE NEW CALEDONIA 21.5S 167.9E 1513 0.13M/ 0.4FT 06 SUVA VITI LEVU FJ 18.1S 178.4E 1511 0.05M/ 0.2FT 28 OUINNE NEW CALEDONI 22.0S 166.7E 1501 0.29M/ 1.0FT 08 LENAKEL VU 19.5S 169.3E 1441 0.78M/ 2.6FT 04 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. $$ NNNN