992
WEHW40 PHEB 300838
TSUHWX
HIZ001-003-006>007-009-016>018-023-026-029>035-037>050-051>054-
301038-
/O.CAN.PHEB.TS.W.0001.000000T0000Z-000000T0000Z/
/O.NEW.PHEB.TS.Y.0001.250730T0838Z-000000T0000Z/
TSUNAMI MESSAGE NUMBER 10
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
1038 PM HST TUE JUL 29 2025
TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII
SUBJECT - TSUNAMI ADVISORY
A TSUNAMI ADVISORY IS ISSUED FOR THE STATE OF HAWAII EFFECTIVE
AT 1038 PM HST.
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
ORIGIN TIME - 0125 PM HST 29 JUL 2025
COORDINATES - 52.2 NORTH 160.0 EAST
LOCATION - OFF THE EAST COAST OF KAMCHATKA RUSSIA
MAGNITUDE - 8.8 MOMENT
MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY
GAUGE LOCATION LAT LON TIME AMPL PER
------------------- ----- ------ ----- --------------- -----
HONOKOHAU HI USA 19.7N 156.0W 0741Z 0.11M / 0.4FT 10MIN
KAWAIHAE HAWAII 20.0N 155.8W 0719Z 0.37M / 1.2FT 14MIN
DEKEHTIK POHNPEI FM 7.0N 158.2E 0634Z 0.10M / 0.3FT 20MIN
DART 52402 11.9N 153.9E 0507Z 0.06M / 0.2FT 44MIN
KAUNAKAKAI US 21.1N 157.0W 0620Z 0.23M / 0.8FT 30MIN
PAGO BAY GUAM US 13.4N 144.8E 0707Z 0.15M / 0.5FT 10MIN
HONOLULU OAHU 21.3N 157.9W 0658Z 0.33M / 1.1FT 16MIN
KAHULUI MAUI 20.9N 156.5W 0609Z 1.74M / 5.7FT 34MIN
DUTCH HBR UNALASKA 53.9N 166.5W 0406Z 0.32M / 1.0FT 72MIN
ATKA AK 52.2N 174.2W 0430Z 0.55M / 1.8FT 38MIN
NIKOLSKI AK 52.9N 168.9W 0548Z 0.41M / 1.3FT 42MIN
BARBERS PT HI 21.3N 158.1W 0638Z 0.19M / 0.6FT 04MIN
HEEIA HI USA 21.4N 157.8W 0558Z 0.12M / 0.4FT 20MIN
WAKKANI JP 45.4N 141.7E 0610Z 0.23M / 0.8FT 56MIN
PORT ALLEN HI USA 21.9N 159.6W 0630Z 0.42M / 1.4FT 10MIN
CHICHIJIMA JP 27.1N 142.2E 0627Z 0.49M / 1.6FT 18MIN
WAIANAE HI USA 21.5N 158.2W 0622Z 0.37M / 1.2FT 10MIN
HILO HAWAII 19.7N 155.1W 0623Z 1.50M / 4.9FT 14MIN
HANALEI HI 22.2N 159.5W 0548Z 1.17M / 3.9FT 12MIN
KEEHI HI USA 21.3N 157.9W 0612Z 0.19M / 0.6FT 34MIN
MAKAPU'U HI 21.3N 157.7W 0604Z 0.70M / 2.3FT 14MIN
HALEIWA HI 21.6N 158.1W 0548Z 1.21M / 4.0FT 12MIN
NAWILIWILI KAUAI 22.0N 159.4W 0536Z 0.23M / 0.8FT 14MIN
NAWILIWILI HI 22.0N 159.4W 0537Z 0.23M / 0.7FT 12MIN
HANALEI HI USA 22.2N 159.5W 0533Z 0.90M / 3.0FT 20MIN
WAKE US 19.3N 166.6E 0350Z 0.22M / 0.7FT 14MIN
MERA JP 34.9N 139.8E 0510Z 0.32M / 1.1FT 24MIN
APRA HARBOR GUAM US 13.4N 144.7E 0442Z 0.12M / 0.4FT 56MIN
SAIPAN US 15.2N 145.7E 0456Z 0.23M / 0.7FT 60MIN
MIDWAY 28.2N 177.4W 0400Z 0.96M / 3.1FT 08MIN
HANASAKI HOKKAIDO J 43.3N 145.6E 0158Z 0.32M / 1.0FT 58MIN
DART 46413 48.0N 174.2W 0144Z 0.19M / 0.6FT 40MIN
KUSHIRO JP 43.0N 144.4E 0121Z 0.33M / 1.1FT 76MIN
DART 21415 50.2N 171.9E 0117Z 0.20M / 0.6FT 08MIN
DART 21414 49.0N 178.2E 0103Z 0.28M / 0.9FT 32MIN
DART 21416 48.1N 163.5E 0003Z 0.90M / 3.0FT 24MIN
LAT - LATITUDE (N-NORTH, S-SOUTH)
LON - LONGITUDE (E-EAST, W-WEST)
TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)
AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).
PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.
NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY
ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL
MEASUREMENTS AT SIMILAR LOCATIONS.
EVALUATION
BASED ON ALL AVAILABLE DATA A MAJOR TSUNAMI IS NOT EXPECTED TO
STRIKE THE STATE OF HAWAII. HOWEVER...SEA LEVEL CHANGES AND
STRONG CURRENTS MAY OCCUR ALONG ALL COASTS THAT COULD BE A HAZARD
TO SWIMMERS AND BOATERS AS WELL AS TO PERSONS NEAR THE SHORE AT
BEACHES AND IN HARBORS AND MARINAS. THE THREAT MAY CONTINUE FOR
SEVERAL HOURS AFTER THE INITIAL WAVE ARRIVAL.
THE ESTIMATED TIME OF ARRIVAL OF THE INITIAL WAVE IS
0717 PM HST TUE 29 JUL 2025
FURTHER MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS
WARRANT UNTIL THE THREAT TO HAWAII HAS PASSED.
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