A Tsunami Advisory for the Island of Hawaii has been canceled as of 6:58 pm Monday evening (October 19th).
Published by: HIRSC - Weather Team
The Pacific Tsunami Warning Center (PTWC) for reports the Tsunami Advisory for the Island of Hawaii has been canceled or ended as of 6:58 pm Monday evening (October 19th).
No damage or injuries have been reported to the Hawaii Fire Department (HFD), Hawaii Police Department (HPD), and Hawaii County Civil Defense on Hawaii Island. Moderate tide changes were reported around the Hilo Bay area and minor tidal changes were reported at Kawaihae Harbor in South Kohala and Honokohau Harbor in North Kona.
While the event has ended, some minor sea-level changes and strong and unusual changes may persist for some coastal areas and for the next several hours. Swimmers and boaters are being asked to use caution while in the water.
This will be the final message for this event unless further data is received.
We have also sent an inquiry to PTWC regarding the delayed message and waiting for a reply. We will post that statement, once that becomes available.
TSUNAMI MESSAGE NUMBER 4 NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI 701 PM HST MON OCT 19 2020 TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII SUBJECT - FINAL TSUNAMI ADVISORY THE TSUNAMI ADVISORY IS ENDED FOR THE STATE OF HAWAII EFFECTIVE AT 0658 PM HST. AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME - 1055 AM HST 19 OCT 2020 COORDINATES - 54.7 NORTH 159.6 WEST LOCATION - SOUTH OF ALASKA MAGNITUDE - 7.5 MOMENT MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY GAUGE LOCATION LAT LON TIME AMPL PER ------------------- ----- ------ ----- --------------- ----- KAHULUI MAUI 20.9N 156.5W 0346Z 0.13M / 0.4FT 20MIN HILO HI 19.7N 155.1W 0211Z 0.28M / 0.9FT 16MIN HANALEI HI 22.2N 159.5W 0304Z 0.26M / 0.8FT 18MIN NAWILIWILI HI 22.0N 159.4W 0142Z 0.09M / 0.3FT 12MIN KAWAIHAE HAWAII 20.0N 155.8W 0205Z 0.05M / 0.2FT 12MIN MOKUOLOE OAHU 21.4N 157.8W 0214Z 0.02M / 0.1FT 08MIN HALEIWA HI 21.6N 158.1W 0147Z 0.19M / 0.6FT 10MIN 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 TSUNAMI WAVE HEIGHTS ACROSS THE STATE OF HAWAII ARE NOW BELOW ADVISORY LEVELS AND ARE CONTINUING TO DIMINISH. MEASUREMENTS RECORDED FOR KAHULUI AND HILO ARE NOW BELOW ADVISORY LEVEL. BASED ON ALL AVAILABLE DATA THE PACIFIC TSUNAMI WARNING CENTER IS NOW CANCELLING THE TSUNAMI ADVISORY. SMALL SEA LEVEL CHANGES AND STRONG OR UNUSUAL CURRENTS MAY PERSIST FOR SEVERAL ADDITIONAL HOURS IN SOME COASTAL AREAS AND APPROPRIATE CAUTION SHOULD BE EXERCISED BY BOATERS AND SWIMMERS. THIS WILL BE THE FINAL MESSAGE ISSUED FOR THIS EVENT UNLESS ADDITIONAL DATA ARE RECEIVED.