PACIFIC and CARIBBEAN SERVICE AREAS
NOAA’s NWS “Tsunami Alerts” site (PTWC, US NTWC): http://www.tsunami.gov
NOAA’s NWS Tsunami Message Subscriptions: http://tsunami.gov/?page=productRetrieval
PTWC –US Pacific Tsunami Warning Center
AORs:
International: Pacific Ocean including marginal seas, Caribbean and Adjacent Regions
National: Hawaii, American Samoa, Guam/CNMI, Puerto Rico/US and British Virgin Islands
The PTWC serves as a Tsunami Service Provider providing threat information, including estimated/observed arrival times and tsunami heights, for the PTWS (Pacific) and CARIBE-EWS (Caribbean). The PTWC provides Warnings for Hawaii, American Samoa, Guam and CNMI, Puerto Rico and US and British Virgin Islands.
US NTWC – National Tsunami Warning Center (formerly WC/ATWC) http://wcatwc.arh.noaa.gov/
AORs: Continental USA, Canada, Alaska
The US NTWC provides Warnings for above customers.
NWPTAC – Japan Northwest Tsunami Advisory Center
Summary: http://www.data.jma.go.jp/svd/eqev/data/nwptac/index.html
Messages: http://www.jma.go.jp/en/distant_tsunami/WEPA40/indexo.html
The Northwest Pacific Tsunami Advisory Center (NWPTAC) provides information advice on tsunamis in the Western and North Pacific and the South China Sea, including data on estimated/observed arrival times and tsunami heights, as well as earthquake information. Currently issuing since December 20, 2018 enhanced products on experimental basis, in parallel with existing products.
Geographical earthquake source coverage extends to about 100 to 165 deg E. Forecasts are provided for blocks from Russia to Solomon Islands, and Thailand to Federated States of Micronesia and Marshall Islands (Eniwetok)
SCSTAC – China South China Sea Tsunami Advisory Center
http://scstac.oceanguide.org.cn/index.htm
The South China Sea Tsunami Advisory Center (SCSTAC) provides information advice on tsunamis in the South China Sea and adjacent basins, including data on estimated/observed arrival times and tsunami heights, as well as earthquake information. Currently issuing since January 26, 2018 on trial basis new products.