1. The organizations of Tsunami
warning system in Indian Ocean
● The damage in the Indian Ocean
● The situation before the killer waves
● The situation after the tsunami
● Major tsunami warning organizations
● About the regional tsunami watch provider
● Asian Disaster Preparedness Center
● References

2. The damage in the Indian Ocean
● In 2004, there were
the major earthquake
and big tsunami.
● The earthquake
which was a
magnitude of
9.1.happened in the
Indian Ocean.
● Almost 230,000
people were killed by
this accident.

3. The situation before the killer waves
● The Pacific Tsunami Warning Center(PTWC)
which is a national organization plays an
important role in tsunami warning.
● One of its works is to alert countries which
tsunami would come.
● But this wasn't enough because many countries
in Indian Ocean didn't have sea-level monitors
and agencies which have communities of
tsunami warning systems.

4. The situation after the tsunami
● The bad situation for the tsunami have changed
to protect many people.
● There is a network of seismographic centers
across the Indian Ocean. In addition, many
organizations including national warning
agencies, coastal and deep-ocean stations are
put there.
● People who live in Indian Ocean get the
communication for tsunami.

5. Major tsunami warning
organizations
● When the earthquake
happen near the Indian
Ocean, data including
a seismic center, sea
level is transmitted to
PTWC and Japan
Meteorological Agency.
● These agencies have a
duty to teach the
information about the
tsunami to countries
and alert.

6. About the regional tsunami watch
provider
● The agencies introduced the previous slide
have affected the other agencies.
● There are the agencies called regional tsunami
watch providers(RTWPs) in Indian Ocean
countries.
● They are increasing the number of themselves
and take over the functions of PTWC and JMA.

7. Asian Disaster Preparedness
Center
● The Asian Disaster
Preparedness Center
is one of the RTWPs.
● It has the Regional
Integrated Multi-
Hazard Early Warning
System(RIMES)
which share the
information with
Hawaii and Japan.

8. References
● Pacific Tsunami Warning Center
http://ptwc.weather.gov/
● Japan Meteorology Agent
http://www.jma.go.jp/jma/index.html
● Asian Disaster Preparedness Center
http://www.adpc.net/2011/