Earthquakes, landslides, volcanic eruptions and other disturbances can cause tsunamis by displacing large amounts of water. Tsunamis are a series of long sea waves that can travel across entire oceans within hours. Three-quarters of tsunamis occur in the Pacific Ocean due to high seismic activity along subduction zones that make up the Pacific Ring of Fire. When tsunamis reach land, they can devastate coastal areas by destroying homes and infrastructure and endangering human life. On average, two tsunamis occur globally each year, with about 80% originating in the Pacific Ocean.

1. Tsunami
Jasmin Figueroa
Osvaldo Murillo
Lorena Figueroa
Giovanni Soto

2. What is a tsunami
• When mass movement such as
an earthquake or landslide
suddenly displaces a large
amount of water
• A long high sea wave caused
by an earthquake, submarine
landslides or other
disturbance
• Tsunami are a serious of water
waves caused by the
displacement of a large
volume of a body water,
usually an ocean
earthquake
landslides
volcanic
eruptions
explosions and
even the impact
of cosmic bodies
such as
meteorites can
generate
tsunamis
tsunamis have
extremely large
long wavelength
up to several
hundreds miles
long

3. tsunamis can
savagely attack
coastlines
causing
devastating
property
damage and
loss

5. where is it, where is it happening?
• they are more likely to happen on shores
• scientist estimate that almost three quarter of the world tsunamis
occur in the pacific ocean
• they occur more on the pacific ocean and Indonesia due to the large
number of active submarines earthquake zones
• active tsunamis occur in the pacific ocean due to high seismic activity

6. Causes of tsunami
Earthquakes
Volcanic eruptions
Under water explosions
Meteorite impacts

7. A tsunami can travel at
well over 970 kph
(600mph) in the open
ocean as fast as a jet flies
it can only take a few
hours for a tsunami to
travel across an entire
ocean
a tsunami wave
can reach over
100 FT
or higher onto
land

8. How does it affect life on earth
a huge wall of water
comes ashore, there
are some
devastating effects
of a tsunami
affects houses
causing millions of
Dollars to repair
damaged houses
destroys animals
and causes people
to be in an unsafe
environment

9. What are some solutions
Tsunami warning SOLUTIONS
• by using global
positioning systems
(GPS) to measure
ground deformation
caused by a large
underwater
earthquake, they can
provide accurate
warning of the
resulting tsunami in
just a few minutes
provide outside
warning against a
potential tsunami
Click to add text
GIS (GPS)to track
down when a
tsunami occurs

10. disasters and
debris are the most
critical
environment
problem faced by
tsunami
Recycling and
disposal of this
waste in an
environmentally
sensitive manner
where possible
crushing concrete,
bricks, etc. to
produce aggregate
for rebuilding and
road reconstruction
are critic

11. Mega Thrust (subduction zones)
• uAnother term for Mega thrust (subduction zones) is called high
• useismic activity, and this is precisely where most tsunami cases are
• ufound through out the world.
• uHigh seismic activities creates submarine earthquake zones and
• uthey are mainly located around the Pacific Rim of large bodies of
• uwater such as our oceans and even rivers are potentially
• uthreatened.
•
v

12. The importance of the Pacific Rim.
uOne major factor in the birth of a Tsunami is when the Pacific Rim
uhas a high number of active submarine earthquake zones. And
uthese hotspots are mainly attracted on shores.
u Almost three quarters of the worlds Tsunamis occur around the
uPacific Ocean and Indonesia. The reason that these locations spark
uTsunamis is because of the high seismic activities surrounding the
uPacific Rim.

13. tsunami destruction
• tsunamis have been known to cause major destruction to the towns it
strikes due to the huge amounts of power behind the giant waves
• many people can loose their homes and for many that is all they hold
in their life leaving them with no place to stay
• in most case people lose loved ones who get swept away completely

14. How many Tsunamis occur per year?
• uOn the average, two tsunamis occur per year throughout the
world
• uand about 80% of Tsunamis form within the Pacific Oceans
• u“Ring of Fire” making that specific Ocean one of the most
• uvulnerable for Tsunamis.