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How do landslides happen after heavy rain or earthquakes?
Quick Answer
Slopes fail when gravity overcomes friction, often because water, shaking, or weak rock reduces stability.
The Full Story
A landslide occurs when material on a slope suddenly moves downhill. Heavy rain can saturate soil and add weight while reducing friction, and earthquakes can shake loose fractured rock. Landslides range from slow soil creep to rapid rock avalanches that travel at high speeds. They are common in steep mountain regions and can be triggered by deforestation, road cuts, wildfires, and intense storms.
Key Facts
1.Gravity drives landslides
2.Rain and earthquakes are major triggers
3.Landslides can range from slow creep to rapid avalanches
YouTube Angle
Suggested video title for this topic:
"When a hillside suddenly gives way"
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