Receive tsunami information bulletins issued by the Pacific Tsunami Warning Centre (PTWC) and West Coast / Alaska Tsunami Warning Center (WC/ATWC)
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The information provided on this email service does not originate with UNESCO. UNESCO is transmitting this information on an unofficial basis. The official warning messages are sent by governmental authorities through the Tsunami Warning Focal Points (TWFP) and the designated national authorities. UNESCO does not warrant, guarantee, or make any representations regarding the timeliness, currency, correctness, accuracy, reliability, or other aspect of the characteristics or use of the information available through this email service.
NOAA's two Tsunami Warning Centers (US National Tsunami Warning Center and Pacific Tsunami Warning Center) have separate Areas of Responsibility or Service. The Area of Service is the geographical area within which each Center has the responsibility for the dissemination of messages and the provision of tsunami threat information. In the United States, the Warning Centers provide warning bulletins to State and Local Emergency Managers and other officials. Internationally, bulletins are provided as advice to the country's National Tsunami Warning Center to assist in their decision-making for issuing warnings to their populations. All NOAA tsunami bulletins are also made available to the news media and the public.
How to receive messages from US National Tsunami Warning Center (US NTWC):
SMS Text messages:
RSS (Really Simple Syndication):
How to receive messages from Pacific Tsunami Warning Center (PTWC):
PTWC & WC/ATWC Areas of Service:
As the operational headquarters for the Pacific Tsunami Warning System, the PTWC provides warnings to countries within the Pacific Ocean. This function is carried out under the auspices of the UNESCO/IOC Intergovernmental Coordination Group for the Pacific Tsunami Warning and Mitigation System (ICG/PTWS).
Continental United States and Canada
As a US National Tsunami Warning Center and an international center, the WC/ATWC provides warnings for the western and eastern coasts of the continental United States and advice to Canada.
Pacific - U.S. insular Interests
As a US National Tsunami Warning Center for events in the Pacific, PTWC provides warnings to Hawaiʻi, Guam, American Samoa, Wake Island, Johnston Island, the Commonwealth of the Northern Marianas, and all other U.S. interests in the Pacific located outside US NTWC's area of responsibility (Alaska, British Columbia, Washington, Oregon, and California).
South China Sea
As an international center within the ICG/PTWS framework, the PTWC, in cooperation with the Japan Meterological Agency's Northwest Pacific Tsunami Advisory Center (JMA NWPTAC), provides interim tsunami advisories to countries bordering the South China Sea (China, Philippines, Malaysia, Brunei, Indonesia, Singapore, Thailand, Cambodia, Vietnam).
As an international center for events in the Caribbean, the PTWC provides interim tsunami advisories to countries within the Caribbean Region. This function is carried out under the auspices of the UNESCO/IOC Intergovernmental Coordination Group for the Tsunami and Other Coastal Hazards Warning System for the Caribbean and Adjacent Regions (ICG/CARIBE-EWS).
Caribbean Sea - U.S. Interests
As a US National Tsunami Warning Center for events in the Caribbean and Atlantic, the WC/ATWC provides warnings to Puerto Rico, and the US and British Virgin Islands
Australia, India, and Indonesia provide tsunami advisories for countries of the Indian Ocean as Regional Tsunami Service Providers (RTSP). These functions are carried out under the auspices of the UNESCO/IOC Intergovernmental Coordination Group for the Indian Ocean Tsunami Warning and Mitigation System (ICG/IOTWS). From 2005 through March 2013, the PTWC and JMA provided interim tsunami advisories to Indian Ocean countries.