This ppt will enable you to know about the meaning of tsunami and briefly explains the tsunami of Japan 2011.

2. TSUNAMI

3. WHAT IS TSUNAMI
BASICALLY??
CONCEPT:
·Tsunamis are the worst natural disaster;
they happen mostly in the Pacific Ocean, but
may also occur any where in the world with a
large body of water.
·Tsunamis are large wave of water that is
caused by an earthquake in the ocean.

4. It depends on the earthquake on the size
of the Tsunamis big or small.
 They travel hundreds of miles and cause
great devastation to any one in its way.
Tsunamis start at speech at .85 mach,
which is close to 600 MPH, and then slow
down to around 30 MPH when they reach
land.

5. HISTORY OF
TSUNAMI

6. The Roman historian Ammianus Marcellinus (Res Gestae
26.10.15-19) described the typical sequence of a tsunami, including an
incipient earthquake, the sudden retreat of the sea and a following
gigantic wave, after the 365 A.D. tsunami devastated Alexandria
While Japan may have the longest recorded history of tsunamis, the
sheer destruction caused by the 2004 Indian Ocean earthquake and
tsunami event mark it as the most devastating of its kind in modern
times, killing around 230,000 people. The Sumatran region is not
unused to tsunamis either, with earthquakes of varying magnitudes
regularly occurring off the coast of the island.

7. LIST OF
TSUNAMIS OF
PAST 3YRS

8. *On Jan 4, 2010, two powerful earthquakes
measuring 6.5 and 7.2 on the Richter scale hit
the western part of the Solomon Islands,
followed by a number of smaller quakes. It
triggered a tsunami that left about 1,000
homeless.
**On Feb 27, 2010, an 8.8-magnitude
earthquake hit Chile, triggering tsunami
warnings along the coasts of the Pacific Ocean.

10. Japan was hit by a 9.0 magnitude earthquake on
March 11, 2011, that triggered a deadly 23-foot
tsunami in the country's north. The giant waves
deluged cities and rural areas alike, sweeping away
cars, homes, buildings, a train, and boats, leaving a
path of death and devastation in its wake. Video
footage showed cars racing away from surging
waves. The earthquake—the largest in Japan's
history—struck about 230 miles northeast of Tokyo.
The Pacific Tsunami Warning Center issued
warnings for Russia, Taiwan, Hawaii, Indonesia, the
Marshall Islands, Papua New Guinea, Australia, and
the west coasts the U.S., Mexico, Central America,
and South America. According to the official toll, the
disasters left 15,839 dead, 5,950 injured, and 3,642
missing.

11. CONSEQUENCES..

12. AFTER
TSUNAMI
BEFORE
TSUNAMI

17. TSUNAMI WARNING SYSTEM
Communication & Transmission of Tsunami Warning
to Localities & Civil Defense Authorities
TSUNAMI
ＷＡＲＮＩＮＧ
Local
government
Central Government Signboard
TSUNAMI
ＷＡＲＮＩＮＧ
Radio
TSUNAMI
ＷＡＲＮＩ
ＮＧ
ＴＶ/Radio Station TV（Telops, Warning maps）
13

18. PROMOTING THE BASIC KNOWLEDGE
OF TSUNAMI
Safe Evacuation Route
+
Early Warning
=
Understanding of
Hazardous Areas
Appropriate Risk Awaweness of Local
Communities
Safe Evacuation

19. MY CONTRIBUTION TOWARDS
THE AFFECTED AREAS..