2. Tsunamis in the Indian Ocean
ă»In 2004 - a tsunami in the Indian ocean happen
ă»Killed almost 23000 people
ă»About five million people suffer from it
3. The earthquake caused the tsunami
ă»Magnitude 9.3
ă»This is very huge
ă»Depth is 10 kimeters
4. About tsunami warning system
ă»Before 2004 - there were no sea level monitoring
system
ăă»in the Indian Ocean
ăă»did not have agencies responsible for tsunamis
ăă»points of contact receive messages
ă»After 2004 - it was changed
5. After 2004
ă»A large network of seismographic centres
ăă»its area is across the Indian Ocean
ăă»detect potensial on warning to communities
ă»It and others are prepared better than 2004
6. The systen works when it is happen
ă»PTWC - Pacific Tsunami Warning Centre
ăă»invested by NOAA
ăă»it announces tsunamis warning
ăă»first, it use a database of the earthquake
ăă»second, it use a database of oceanography
ăă»it checks a tidegauge in the earthquake areas
ă»JMA - Japan Meteorological Agency
ăă»it is in Tokyo
ăă»it is a institution of government in Japan
7. About PTWC
ă»It is no mistake!
ăă»tsunamis moved ocean take a long time
ăă»so it has a thinking time
ă»ICG/PTWS
- International Coordination Group for the Public
Tsunami Warning and Mitigation System
ăă»it is a international group of priority