30 Questions
What is the primary factor that affects the level of creep induced by rainfall?
Amount of rainfall and changes in soil moisture
What happens to the dirt at the valleyhead slope?
It creeps down and accumulates
What type of landslide occurs when the slope becomes saturated with water?
Debris flow landslide
What is the consequence of removal of buttressing earth at the foot of a slope of unconsolidated material?
Slumping landslide
What can the frequent occurrence of landslides in a section indicate?
Weak and unstable geology
What is the result of a colluvial landslide in a debris flow valley?
A series of secondary hazards
What is a reactivated landslide?
An old landslide that has changed and caused a new collapse
What can tension cracks found above an existing landslide indicate?
A reactivation of the existing landslide
Why is it important to explore the response of colluvial landslide to rainfall?
To predict the potential consequences of the landslide
What can be a sign of a landslide that is not caused by human activities?
Trees bending up in a J-curve
Why are landslides that occur in the same place considered retrogressive or piecemeal?
Because they are multiple landslide events that occur in the same place
What can be inferred from inspecting an area of an old landslide?
The region's underlying geology is fragile and vulnerable to landslides
What is the primary cause of landslides on sloping terrain?
Gravity
Why do structures built on steep-slope mountains have a high vulnerability to landslide hazards?
Because of the steep slope and heavy rainfall
What happens to the soil base of buildings or structures during long or regular rain?
It becomes saturated, weakening the soil base
What is the role of plants and trees in preventing landslides?
They absorb water and hold the soil together
What is characterized by a very slow downslope movement of particles?
Soil Creep Landslide
What is the outcome of a heavy downpour of rain on buildings and communities?
A quick destruction of buildings and communities
What should you do if escape is not possible during a landslide?
Curl into a tight ball and protect your head
Why is it more dangerous if mudflow occurs during a landslide?
It increases in strength as it meets more water
What should you avoid during a landslide?
Low-lying areas and steep slopes
What should you do after a landslide?
Stay away from the slide area and listen for latest emergency information
What is a sinkhole also known as?
Cenote, swallet, swallow hole
What causes most sinkholes?
Karst-the chemical dissolution of carbonate rocks
What should government leadership do to set an example in mitigation implementation?
Require new facilities to be designed and built according to modern building codes
What is the focus of the mitigation training programs?
Contemporary challenges associated with mitigation implementation
Why is hazard-specific research important?
To improve mitigation practices
How can communities determine and validate their vulnerability to geohazards?
Through scientific tools and visible signs
What should be included in a family disaster plan?
A communication plan and emergency supplies
What should be included in an emergency supply kit for a car?
Flares, jumper cables, and a radio
Test your knowledge of geological phenomena, including landslides and their causes, and the impact of rainfall on soil moisture. Learn about the devastating effects of landslides on communities and the environment.
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