The disasters that are existing or occurring in inner space of a planet are called as terrestrial or planetary disasters.

1. PLANETARY
DISASTERS

2. DISASTERS
NATURAL DISASTERS MAN-MADE DISASTERS
EXTRA PLANETARY
DISASTERS
PLANTERY
DISASTERS
ENDOGENOUS
DISASTERS
BIOLOGICAL
DISASTERS
EXOGENOUS
DISASTERS
ACCIDENTAL DISASTERS
NUCLEAR
DISASTERS
CHEMICAL
DISASTERS

3. PLANETARY DISASTERS
• The disasters that are existing or occurring in
inner space of a planet are called as
terrestrial or planetary disasters.

4. ENDOGENOUS HAZARDS
• Hazards which originate inside the surface of
the earth are termed as endogenic hazards.
• E.g. Volcanoes, Earthquake

6. EARTHQUAKE
• An earthquake (also known as
a quake, tremor or temblor) is is the shaking of the
surface of the Earth, resulting from the sudden
release of energy in the Earth's lithosphere that
creates seismic waves. Earthquakes can range in
size from those that are so weak that they cannot be
felt to those violent enough to the people around
and destroy whole cities.

7. EARTHQUAKE
• The seismicity or seismic activity of an area refers
to the frequency, type and size of earthquakes
experienced over a period of time.
• At the Earth's surface, earthquakes manifest
themselves by shaking and sometimes
displacement of the ground. When the epicenter of
a large earthquake is located offshore, the seabed
may be displaced sufficiently to cause a tsunami.

8. VOLCANOES

9. VOLCANOES
• A volcano is a rupture in the crust of a planetary-
mass object, such as Earth, that allows
hot lava, volcanic ash, and gases to escape from
a magma chamber below the surface. A volcano is
a mountain that opens downward to a pool of
molten rock below the surface of the earth. When
pressure builds up, eruptions occur. Gases and rock
shoot up through the opening and spill over or fill
the air with lava fragments.

10. Eruptions can cause lateral blasts, lava flows,
hot ash flows, mudslides, avalanches, falling ash
and floods. Volcano eruptions have been known
to knock down entire forests. An erupting
volcano can trigger tsunamis, flash floods,
earthquakes, mudflows and rock falls.

11. EXOGENOUS HAZARDS
• Hazards which originate above the surface of the
earth (in the atmosphere) are called exogenous
hazards.
• E.g. Drought, Rainfall, Snowfall, Winds, Hailstorm

12. CLASSIFICATIONS
The exogenous disasters are classified into 3
ways:
• Atmospheric Disasters
• Hydrospheric Disasters
• Lithospheric Disasters

13. ATMOSPHERIC DISASTERS
• Atmospheric Disasters that originate in the
atmosphere of the earth are called atmospheric
hazards. These include cyclones, tornadoes,
droughts, thunderstorms etc. Drought, Rainfall,
Snowfall, Winds, Hailstorm

14. HYDROSPHERIC DISASTERS
• Those natural hazards that are related to water
in the atmosphere are termed as Hydrospheric
hazards. These include Wave Currents,
Tsunamis, Floods.

15. LITHOSPHERIC HAZARDS
• Lithospheric hazards are those natural hazards that
occur near to the surface of the earth. It includes the
following hazards: Landslides, weathering, erosion,
avalanches, sinkholes.