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Tsunami Advisory Ends For Hawaiʻi Following Volcanic Eruption In Tonga; Maui Impacts Reported | Maui Now

by Duong
January 15, 2022
in Hilo
tsunami-advisory-ends-for-hawaiʻi-following-volcanic-eruption-in-tonga;-maui-impacts-reported-|-maui-now
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ptwc hawaii jan 15 2022
PC: PTWC. Jan. 15, 2022.

Tsunami Advisory Ends for the State of Hawaiʻi

Update: 7:54 a.m. / 9:02 a.m. Saturday, Jan. 15, 2022

The tsunami advisory that was in effect for Hawaiʻi has since been cancelled as of 7:52 a.m. on Saturday, Jan. 15, 2022.

The Pacific Tsunami Warning Center says tsunami wave heights across the state are now below advisory levels and are continuing to diminish.

The PTWC reports, “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.”

The Maui County Emergency Management Agency reports this morning that tsunami waves lifted a boat from its moorings in Mānele Harbor, Lānaʻi, and washed debris ashore in the East Maui area of Hāna, closing a road near Hāmoa Beach Park. Assessment of impacts is ongoing.

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Just before 5:30 a.m., Maui police reported that Haneoʻo Road in Hāna  was closed between Koki Beach and Hāmoa Beach “due to numerous tree logs and debris brought by water surge.” The road was reopened before 6 a.m.

  • Screen Shot 2022 01 15 at 10.31.11 AMScreen Shot 2022 01 15 at 10.31.11 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

  • Screen Shot 2022 01 15 at 10.29.33 AMScreen Shot 2022 01 15 at 10.29.33 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

  • Screen Shot 2022 01 15 at 10.29.13 AMScreen Shot 2022 01 15 at 10.29.13 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

  • Screen Shot 2022 01 15 at 10.29.22 AMScreen Shot 2022 01 15 at 10.29.22 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

  • Screen Shot 2022 01 15 at 10.29.46 AMScreen Shot 2022 01 15 at 10.29.46 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

  • Screen Shot 2022 01 15 at 10.30.05 AMScreen Shot 2022 01 15 at 10.30.05 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

  • Screen Shot 2022 01 15 at 10.30.18 AMScreen Shot 2022 01 15 at 10.30.18 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

  • Screen Shot 2022 01 15 at 10.30.41 AMScreen Shot 2022 01 15 at 10.30.41 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

  • Screen Shot 2022 01 15 at 10.30.53 AMScreen Shot 2022 01 15 at 10.30.53 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

  • Screen Shot 2022 01 15 at 10.31.21 AMScreen Shot 2022 01 15 at 10.31.21 AM

    Aerial Images of Mānele Harbor on Lānaʻi. Photos: (1.15.22) Russell deJetley

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The original Tsunami Advisory was issued at 12:40 a.m. HST on Saturday, Jan. 15, as a result of the eruption at the Hunga-Tong-Hunga-Ha’apai volcano in Tonga. 

“Although no major tsunami was expected to strike Hawai‘i, the water displaced by the volcanic activity caused unusual sea level changes and alterations to typical sea currents starting at about 1:05 a.m. Saturday,” according to the Hawaiʻi Emergency Management Agency.

The State Emergency Operations Center at HI-EMA was partially activated to monitor the evolving situation. 

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In an update issued shortly after 9 a.m., HI-EMA reported: “At this time, no casualties, injuries, or major damage has been reported, but the Hawaiʻi Emergency Management Agency (HI-EMA) will continue to work with local partners to assess any damages and impacts.”

“While the advisory has been canceled, swimmers and boaters, as well as people on shore in coastal areas are advised to use caution and to follow their local emergency management officials to know when it is safe to return to the water,” according to HI-EMA.

Tsunami Advisory Supplement

Update: 6:40 a.m. Saturday, Jan. 15, 2022

A tsunami advisory continues in effect for the state of Hawaiʻi following a volcanic eruption that occurred at 6:27 p.m. on Jan. 14, 2022 in Tonga.

The Pacific Tsunami Warning Center says “tsunami wave oscillations across the state of Hawaiʻi continue to diminish, but are not yet all below tsunami advisory level.”

The Maui County Emergency Management Agency reports this morning that tsunami waves lifted a boat from its moorings in Mānele Harbor, Lānaʻi, and washed debris ashore in the East Maui area of Hāna, closing a road near Hāmoa Beach Park. Assessment of impacts is ongoing.

“I ask everyone near the shoreline to be vigilant and exercise caution,” Mayor Michael Victorino said. “We will continue to monitor the impacts of this tsunami.”

Note: Dart measurements are from the deep ocean and they generally are much smaller than would be coastal measurements at similar locations, according to the PTWC

“Tsunami waves that can be a hazard to swimmers and boaters as well as to persons near the shore at beaches and in harbors and marinas are now affecting the state of Hawaiʻi. This hazard could continue for several hours. The situation is being monitored closely and the advisory will end when the hazard has passed,” the agency advises.

Future messages will be issued hourly or sooner as conditions warrant until the threat to Hawaiʻi has passed.

The PTWC says maximum tsunami wave amplitudes for Kahului, Maui are 2.7 feet. Other wave amplification heights across the state include: 2.7 feet at Hanalei, Kauaʻi; 2.3 feet at Haleiwa; 1.2 feet at Honokohau and Kawaihae; and 0.4 feet at Honolulu.

The Maui Emergency Management Agency says, “No evacuation is necessary but tsunami waves with the potential for producing strong currents or waves dangerous to those in or very near the water is expected or occurring. There may be flooding of beach and harbor areas. Stay out of the water and away from beaches and waterways. Follow instructions from local officials.”

As a precautionary measure, tsunami waves can be a hazard to swimmers and boaters as well as to persons near the shore, at beaches, and in harbors and marinas, and is now affecting the State of Hawaii.  This hazard may continue for several hours; the situation is being monitored closely and the advisory will end when the hazard potential has passed.

Tweet via NWS Honolulu (Jan. 14, 2022 9:51 p.m.)

At 10:07 p.m. on Friday, Jan. 14, the Pacific Tsunami Warning Center issued its first advisory for Hawaiʻi saying that based on all available data, there was no tsunami threat to Hawaiʻi. That was replaced with a Tsunami Advisory Supplement at 1:51 a.m., saying tsunami waves can be a hazard to swimmers and boaters, as well as persons near shore at beaches and in harbors and marinas now affecting the state.

The following list provides maximum tsunami amplitudes so far on gauges across the Pacific:

GAUGE LOCATION LAT LON TIME AMPL PER

——————- —– —— —– ————— —–

CHICHIJIMA JP 27.1N 142.2E 1344Z 0.74M / 2.4FT 14MIN

VODOPADNAYA RU 51.7N 158.0E 1434Z 0.45M / 1.5FT 12MIN

KUSHIRO JP 43.0N 144.4E 1411Z 0.40M / 1.3FT 42MIN

TOSASHIMIZU SHIKOKU 32.8N 133.0E 1537Z 0.93M / 3.0FT 30MIN

OMAEZAKI HONSHU JP 34.6N 138.2E 1526Z 0.71M / 2.3FT 22MIN

EASTER CL 27.2S 109.4W 1530Z 0.32M / 1.0FT 04MIN

DART 46403 52.7N 156.8W 1431Z 0.06M / 0.2FT 14MIN

DART 46409 55.3N 148.6W 1520Z 0.04M / 0.1FT 14MIN

DUTCH HBR UNALASKA 53.9N 166.5W 1452Z 0.09M / 0.3FT 36MIN

KING COVE AK 55.1N 162.3W 1449Z 0.32M / 1.1FT 16MIN

ATKA AK 52.2N 174.2W 1358Z 0.22M / 0.7FT 20MIN

NIKOLSKI AK 52.9N 168.9W 1528Z 0.36M / 1.2FT 12MIN

LIHOU REEF AU 17.1S 152.1E 1241Z 0.12M / 0.4FT 14MIN

GOLD COAST SAND BYP 27.9S 153.4E 1135Z 0.70M / 2.3FT 42MIN

PORT KEMBLA AU 34.5S 150.9E 1206Z 0.39M / 1.3FT 32MIN

TWOFOLD BAY AU 37.1S 149.9E 1205Z 0.67M / 2.2FT 48MIN

SPRING BAY AU 42.5S 147.9E 1041Z 0.35M / 1.1FT 70MIN

HIVA OA MARQUESAS 9.8S 139.0W 1026Z 0.53M / 1.8FT 12MIN

NUKU HIVA MARQUESAS 8.9S 140.1W 1055Z 0.67M / 2.2FT 12MIN

HANALEI HI 22.2N 159.5W 1233Z 0.82M / 2.7FT 14MIN

KAHULUI MAUI 20.9N 156.5W 1228Z 0.83M / 2.7FT 20MIN

RIKITEA PF 23.1S 135.0W 1038Z 0.21M / 0.7FT 14MIN

HUAHINE PF 16.7S 151.0W 0813Z 0.53M / 1.8FT 12MIN

NAURU 0.5S 166.9E 1118Z 0.15M / 0.5FT 04MIN

GISBORNE EASTLAND N 38.7S 178.0E 1141Z 0.68M / 2.2FT 42MIN

KAWAIHAE HAWAII 20.0N 155.8W 1132Z 0.37M / 1.2FT 10MIN

HONOKOHAU HI 19.7N 156.0W 1145Z 0.34M / 1.1FT 10MIN

HALEIWA HI 21.6N 158.1W 1138Z 0.70M / 2.3FT 10MIN

HONOLULU OAHU 21.3N 157.9W 1112Z 0.12M / 0.4FT 14MIN

BARBERS PT HI 21.3N 158.1W 1135Z 0.19M / 0.6FT 04MIN

MAKAI PIER WAIMANAL 21.3N 157.7W 1128Z 0.28M / 0.9FT 10MIN

HILO HAWAII 19.7N 155.1W 0929Z 0.10M / 0.3FT 16MIN

NAWILIWILI KAUAI 22.0N 159.4W 1057Z 0.31M / 1.0FT 12MIN

HIENGHENE NEW CALED 20.7S 164.9E 0910Z 0.45M / 1.5FT 10MIN

VANUATU 17.8S 168.3E 0924Z 1.41M / 4.6FT 20MIN

RAROTONGA CK 21.2S 159.8W 0853Z 0.90M / 3.0FT 02MIN

GREAT BARRIER IS NZ 36.2S 175.5E 0849Z 0.70M / 2.3FT 10MIN

OWENGA CHATHAM NZ 44.0S 176.4W 0902Z 0.44M / 1.4FT 40MIN

KINGSTON NORFOLK IS 29.1S 168.0E 0840Z 0.78M / 2.6FT 10MIN

LUGANVILLE VU 15.5S 167.2E 0826Z 0.37M / 1.2FT 24MIN

OUINNE NEW CALEDONI 22.0S 166.7E 0826Z 1.13M / 3.7FT 08MIN

THIO NEW CALEDONIA 21.6S 166.2E 0819Z 0.57M / 1.9FT 20MIN

LIFOU NEW CALEDONIA 20.9S 167.3E 0746Z 0.89M / 2.9FT 16MIN

EAST CAPE NZ 37.6S 178.2E 0834Z 0.26M / 0.8FT 08MIN

DART401002 29.7S 175.0W 0542Z 0.10M / 0.3FT 28MIN

DART401001 36.0S 177.7W 0612Z 0.07M / 0.2FT 24MIN

SUVA VITI LEVU FJ 18.1S 178.4E 0633Z 0.26M / 0.9FT 18MIN

DART401003 23.4S 173.4W 0442Z 0.12M / 0.4FT 42MIN

NUKUALOFA TO 21.1S 175.2W 0516Z 0.82M / 2.7FT 06MIN

PAGO PAGO AS 14.3S 170.7W 0531Z 0.62M / 2.0FT 16MIN

APIA UPOLU WS 13.8S 171.8W 0551Z 0.17M / 0.5FT 18MIN

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.

Read More Here

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