US NWS Pacific Tsunami Warning Center

01/28/2023

This is the Story of the Thunderbird.
Local mythology of the Great Orphan Tsunami of 1700.
"The Present is the Key to the Past"
- James Hutton, the Father of Geology, 1785.
The same holds true vice versa. The Past is a key to the Present, or in our case, the Future. 320 years ago, the Cascadia Seismic Zone (CSZ) ruptured from Mendocino CA to Vancouver Island BC, releasing tremendous seismic energy, generating a devastating tsunami both locally and across the world. We know this will happen again due to the diligent work of many, sleuthing clues from the land as well as the story.

https://blogs.scientificamerican.com/rosetta-stones/thunderbird-and-the-orphan-tsunami-cascadia-1700/?fbclid=IwAR35aLpg9estYRmOeDKYC_jtNO-UZqhQo88raZT7QQWQrdz3Pk2K4PIpxq4

It's the 316th anniversary of the 1700 Cascadia megathrust earthquake and tsunami! 

03/11/2022

Eleven years ago the Fukushima Daiichi nuclear power plant complex was inundated with 15 meters of seawater when the Great Japan Earthquake generated a tsunami that easily breached its 5.7 meter protective seawall. The damage the plant sustained was far more severe than that from the Mw 9.1 earthquake and unleashed a series of events that led to core meltdowns and massive release of radiation from three of its reactors. Learn what happened in the hours and days after the waves struck, and why water poses such a threat to nuclear facilities.
[To continue reading: http://itic.ioc-unesco.org/index.php?option=com_content&view=article&id=2202&Itemid=3292]
[Image - Photographs taken by a Fukushima Daiichi employee
as the second and largest wave breached the 5.7 meter sea wall]

01/15/2022

The Tsunami Advisory for Hawaii is Cancelled.

TSUNAMI MESSAGE NUMBER 8
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
754 AM HST SAT JAN 15 2022
THE TSUNAMI ADVISORY IS ENDED FOR THE STATE OF HAWAII EFFECTIVE AT 0752 AM HST.

A VOLCANIC ERUPTION OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 0627 PM HST 14 JAN 2022
COORDINATES - 20.5 SOUTH 175.4 WEST
LOCATION - TONGA

EVALUATION

TSUNAMI WAVE HEIGHTS ACROSS THE STATE OF HAWAII ARE NOW BELOW ADVISORY LEVELS AND ARE CONTINUING TO DIMINISH. 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.

01/15/2022

A massive volcanic eruption has occurred on the Island of Tonga in the South Pacific. This event is extremely dangerous for those on and near the area closest to the eruption. A tsunami has been generated that we are closely monitoring as it crosses the Pacific.

The Pacific Tsunami Warning Center has issued a Tsunami Advisory for the State of Hawaii. A tsunami is currently being observed by all Hawaiian Islands' Emergency Management. We are relieved that there is no reported damage and only minor flooding through-out the islands.

The National Tsunami Warning Center has issued a Tsunami Advisory for Alaska, British Columbia, Washington, Oregon, and California.

A Tsunami Advisory means that there could be damaging wave action in harbors and on beaches. Stay away from the shoreline until local Emergency Managers have given the 'All Clear'.

“Infrared Satellite Imagery shows how clear skies were fast replaced by the giant cloud over in the past couple hours. https://t.co/pxqA4LymlH”

01/15/2022

The Tsunami Warning for American Samoa has been canceled. The PTWC continues to monitor tsunami activity in the Southwest Pacific.

01/15/2022

A Tsunami Advisory was issued for American Samoa due to hazardous waves generated by the eruption of the Hunga Haʻapai volcano in Tonga.

UPDATE:

A Tsunami Warning is now in effect for Samoa

01/13/2022

An ongoing eruption of a in Tonga is generating small waves as shown in the tide record below. Tonga has issued a marine tsunami warning for its own coastlines. There is no danger to anyone else.

10/10/2021

In regards to today's M6.2 earthquake off the South Point of Hawaii's Big Island. There is NO tsunami hazard.

Keep track of the news for this event, as well as all the exciting events on the Big Island on the Hawaii Volcano Observatory website:

HAWAIIAN VOLCANO OBSERVATORY EARTHQUAKE INFORMATION STATEMENTThe U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded an offshore magnitude-6.2 earthquake southwest of the Island of Hawai‘i on Sunday, October 10, at 11:48 a.m., HST.

10/10/2021

No hazard from M6.1 off the south coast of the Big Island of .

ZCZC WEHW42 PHEB 102152 TIBHWX HIZ001-003-006>007-009-016>018-023-026-029>035-037>050-051>054- 102352- TSUNAMI INFORMATION STATEMENT NUMBER 1 NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI 1152 AM HST SUN OCT 10 2021 TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII SUBJECT - LOCAL TSUNAMI INFORMATIO...

09/20/2021

Cumbre Vieja volcano on the Island of La Palma, Canary Islands, is currently erupting. The Northeast Atlantic and Mediterranean Tsunami Warning System is monitoring the situation.

The volcanic activity associated with the Cumbre Vieja volcano does not pose a tsunami threat to the Caribbean Sea and adjacent regions at this time. The Pacific Tsunami Warning Center continues to monitor all available data for tsunamis or tsunami-causing phenomena.

If PTWC determines that the situation has changed and it detects a significant tsunami from the Canary Islands, or an event that may cause one, then it will issue appropriate tsunami alerts to the nations and territories within the Caribbean Sea and adjacent regions.

The National Tsunami Warning Center is monitoring tsunami threats associated with the east coasts of the United States and Canada.

El Portal Web del Instituto Geográfico Nacional tiene carácter divulgativo y orientativo, y pretende poner a disposición de cualquier usuario interesado datos, aplicaciones, servicios y recursos geográficos

08/12/2021

A magnitude 7.6 has occurred in the South Sandwich Islands of the Southern Atlantic Ocean.
Please find the most up-to-date information at tsunami.gov
https://www.tsunami.gov/events/PHEB/2021/08/12/21224001/2/WECA43/WECA43.txt

ZCZC WECA43 PHEB 121921 TIBCAX TSUNAMI INFORMATION STATEMENT NUMBER 2 NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI 1919 UTC THU AUG 12 2021 ...TSUNAMI INFORMATION STATEMENT... **** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE ***** THIS STATEMENT IS ISSUED FOR INFORMATION ONLY IN SUPPOR...

07/29/2021

The Hawaii watch due to the magnitude 8.2 offshore of the Alaska Peninsula is cancelled. No threat to Guam/CNMI or American Samoa. No tsunami threat to anywhere outside of Alaska/Aleutian Islands.

ZCZC WEHW40 PHEB 290755 TSUHWX HIZ001-003-006>007-009-016>018-023-026-029>035-037>050-051>054- 290955- /O.CAN.PHEB.TS.A.0001.000000T0000Z-000000T0000Z/ BULLETIN TSUNAMI MESSAGE NUMBER 3 NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI 954 PM HST WED JUL 28 2021 TO - EMERGENCY MANAGEMENT IN THE STATE....