Tsunami Warning Centre (TWC) 1
Tsunami Warning Centre (TWC) 1 : Networks in order to characterize the earthquakes within seconds and issue a warning within minutes. An example of a Regional Tsunami Warning Centre is the Pacific Tsunami Warning Center, which provides international tsunami warnings advisories to the Pacific. After the 26 December 2004 tsunami, the PTWC and JMA have acted as an Interim Regional TWC for the Indian Ocean. Examples of sub-regional TWCs are the NWPTAC operated by the JMA of Japan, and the WC/ATWC operated by the US NOAA. In the Pacific, these centres, along with long-time national centres in Chile, France, and Russia, also act as national TWCs providing local tsunami warnings for their countries
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