Article #3 tsunami warning system Speaking and Wri-ng -‐3 Dr. Roy S1180042 Ryoko Aoki
The Indian Ocean • Killed almost 230,000 people • The United Na6ons Intergovernmental Oceanographic Commission created a tsunami early warning system.
A large network • In place across the Indian Ocean for ﬁve years • Detect poten6al tsunamis and pass on warning to communi6es • Seismographic center, na6onal warning center and so on is in place across the Indian Ocean.
When an earthquake strikes • The data is transmiFed to PTWC based in Hawaii and JMA in Tokyo. • PTWC stands for Paciﬁc Tsunami Warning Center. • JMA stands for Japan Meteorological Agency.
Work of JAM and PTWC • Have responsibility for providing the Indian Ocean with what are known as tsunami watches • Receive earthquake informa6on and data from 6dal gauges and DART sensors or buoys • Receive news bulle6ns, telegrams, and informa6on over the telephone • CTBO contributes data from seismographic sta6ons
The job these two centres • Locate and determine the size of earthquakes • Determine whether they have the poten6al to produce tsunamis • Predict tsunami wave arrival 6mes
Warning ways -‐airwaves-‐ • Radio • Television • SMS • Email -‐manually-‐ • Bell • Megaphone • Loud-‐speaker
Conclusion • The en6re world cooperates and these systems are done. • We are defended by these systems. • A more exactly predic6on will be able to be done about the earthquake informa6on etc.