Japan Meteorological Agency
Provides warning and advisories for communities at risk of tsunami; describes their service, with current status and a list of recent warnings.
Joint Australian Tsunami Warning Centre
Established to detect, monitor, verify and warn of tsunami and possible threats to Australian coastal areas and islands. Describes their services and facilities, with a FAQ and links.
NWS Tsunami Centers
The US National Weather Service provides information about their warning services (West Coast and Alaska, and Pacific Tsunami Warning Centers) and their tsunami preparedness programs.
Pacific Tsunami Warning Center
Find information about the center including details of organizational structure, areas of responsibilities, media and visitor information, staff and contacts. Includes tsunami messages for the Pacific Ocean for the past thirty days, maps and archive.