Geological Hazards Flashcards
Are phenomena (natural or man-made)
which poses a threat to people, animals,
properties & environment
Hazards
Are naturally occuring events
that directly or indirectly impact
the geology of the Earth.
Geologic Procesess
Are extreme natural events or
phenomena that poses threat to
life & property
Geologic Hazards
related to natural conditions, although some may be due to human activities.
Geologic Hazards
Is the minimal to rapid shaking of the
ground due to the movements of rocks
along faults on Earth’s crust
Earthquake
Earthquake (4 causes)
Plate move
rock breaks
energy release
earthquake
Earthquake Hazards
Ground shaking
surface faulting
landslide
liquefaction
tsunamis
Occurs when magma is released
from a volcano
Volcanic Eruption
Volcanic Hazards
Tephra
Pyroclastic Flow
Lahar
Lava flows and Domes
Poisonous Gasses
This is a natural hazard but human activities
may speed up or trigger its occurrences
Landslide
human activities trigger landslide
Overloading Slope
Mining
Land Use (Construction)
Excavation/Displacement of rocks
Quarrying
Land Pollution/Land Degradation
Cutting Trees