Natural disasters are caused by natural processes and can result in loss of life and economic damage. There are two main types of disasters: natural disasters such as floods, earthquakes, volcanic eruptions, and tsunamis; and man-made disasters caused by human activities like nuclear explosions and global warming. Common natural disasters include floods, which occur from heavy rain and overflowing rivers; tsunamis, which are large sea waves caused by undersea earthquakes or landslides; wildfires, which burn forests and grasslands due to lightning or human accidents; and earthquakes, which release energy through sudden rock movement underground. Education and preparedness can help reduce impacts, but natural disasters cannot be fully prevented when they occur

1. Submitted by
HUGAR SIDDESH
USN:3VC20ME419
V.V. Sangha’s
RAO BAHADUR Y MAHABALESWARAPPA ENGINEERING COLLEGE
Department of Mechanical Engineering
2022-2023
Under the guidance of
Dr. Kottresh Sardar

2. Contents:
1) Introduction
2) Types of Natural disaster
3) Reasons for Natural disaster
4) Solution for Natural disaster
5) conclusion
6) References

3. Introduction
 A natural disaster is a disaster caused by nature, such as floods,
volcanic eruptions, earthquakes, tsunamis, landslides, sinkholes,
drought, heat waves, tropical storms, typhoons, Ice Ages,
tornadoes, and wildfires.
 A biological threat such as locusts or toxic fungi could also
be considered a natural disaster.

5. Disasters can be broadly classified into two
types
 Natural disasters
 Man- made disasters

6. A natural disaster is a majoradverse event resulting from
natural processes of the Earth. This may cause loss of life
and could also cause economic damage.
Some examples of natural disasters are-
⚫Floods
⚫Earthquakes
⚫Volcanic eruptions
⚫Avalanches
⚫Tsunamis
Natural disasters

7. MAN MADE DISASTERS
Disasters caused by human activities that
has an adverse effect are called
man made disasters.
Some examples of man-made disasters are
⚫Nuclearexplosion
⚫Global warming
⚫Oil spills
⚫Fires

8. ■ Result from heavy rains.
■ May involve rivers overflowing, storm
surge/ocean waves, & dams or levees
breaking.
■ Most common natural hazard.
■ Flashfloods = floods that happen very
fast.
Floods

9. Effects of Floods

10. Tsunamis
■ Form as a result of earthquakes,
volcanoes, or landsides under the
ocean.
■ Waves grow taller as they reach the
coast.
■ Four out of Five occur in the Ring of
Fire.
■ Over 200,000 people Died in the
26/12/2005 Indian Ocean tsunami.

11. Effects of Tsunamis
Indian Ocean Tsunami – December 26, 2005

12. Wildfires
■ Occur in forests, grasslands, and
wooded areas.
■ Most common causes: lightning
and human accidents.
■ Burn more than 4 million acres in
the U.S. each year.

13. Effects of Wildfires

14.  Earthquakes are usually
caused when underground rock
suddenly breaks and there is rapid
motion along a fault.
 This sudden release of energy
causes the seismic waves that
make the ground shake
Earthquakes

15. Effects of Earthquakes

16. REASONS FOR NATURAL DISASTERS
Natural phenomenon
Moon activities
Soil erosion
Deforestation
Ocean currents
Air pressure
Pollution
Global warming
Mining

17. Awareness, education, preparedness,
and prediction and warning systems can
reduce the disruptive impacts of a natural
disaster on communities
SOLUTIONS FOR NATURAL DISASTERS

18. CONCLUSION
Natural disasters can cause severe damage to the environment. It is
high time we must be aware that natural disasters can also be
triggered by mankind. Our activities which affect nature can lead
nature to backfire on us. Natural disasters can not be stopped when
they occur, but they can be prevented to some extent.

19. References
 WWW.GOOGLE.COM
 WWW.SLIDESHARE.COM
 https://www.slideshare.net/VenkatBaboo/natural-disasters-64481694