3. GEOLOGICAL PROCESS
Are naturally
occurring events
that directly or
indirectly impact
the geology of the
earth.
Weathering,
mountain
formation,
earthquakes,
volcanic eruption,
and landslide.
4. Earthquake
• -It is the minimal to rapid shaking of the ground due to the movement of
rocks doing fault on earth crust.
10. Volcanic Eruption
C. Lava flows/domes-
• composed of viscous magma being erupted onto
the surface.
D. Poisonous gases-
• are gases released during volcanic eruption.
11. Hazards
• Hazards are phenomena (natural or man-made) which poses threat to
humans, animals, properties and environment.
15. Landslide
• is the movement of rock down a slope
• *This is a natural hazard but human activities may speed up or trigger
its occurences
16. Human Activities that speed-up or trigger
landslide
A. Overloading Slopes B. Mining
C.
Excavation/displacements
of rocks
D. Cutting of trees
17. Effect of landslide
Property damage, injury and death.
Affects
Water supplies, fisheries, forests, dams and roadways.
Negative economic effects
Cost to repair structures, loss of property value, medical costs,
indirect cost.
18. Hazard Map
• Illustrates areas that are exposed
or prone to a paticular hazard.
• Used to mitigate the potential
negative effects of hazards
