Geological Hazards in Britain

The video discusses geological hazards (GIA) in Britain, highlighting their differences from global hazards. It covers the risks of earthquakes, landslides, and clay shrinkage, emphasizing their minor scale compared to global standards. The video concludes with the importance of awareness and planning for these localized hazards.

What is considered the highest risk geological hazard in Britain?

• Radon gas

• Landslides

• Earthquakes

• Flooding

How often does Britain experience earthquakes with a magnitude above 5?

• Every 50 years

• Every 100 years

• Every 10 years

• Every 200 years

What was the magnitude of the significant earthquake that occurred in Shropshire in 1990?

• 5.1

• 6.5

• 6.0

• 4.5

What geological condition often leads to landslides in Britain?

• Sandstone over clay

• Clay over shale

• Limestone over sandstone

• Sandstone over limestone

In which year did Britain experience a significant increase in landslides due to rainfall?

• 2010

• 2014

• 2012

• 2008

What is a major problem caused by shrinking and swelling clay in Britain?

• Earthquake damage

• Building foundation issues

• Increased landslides

• Flooding

Which type of rock is known to dissolve slowly over time, potentially causing subsidence?

• Granite

• Basalt

• Limestone

• Sandstone

What geological feature can lead to the formation of underground cavities in Britain?

• Evaporite deposits

• Igneous intrusions

• Metamorphic layers

• Sedimentary basins

What is the overall scale of geological hazards in Britain compared to global standards?

• Extremely severe

• Relatively minor

• Moderately larger

• Significantly larger

Why is it important to be aware of geological hazards in Britain?

• They require planning and awareness

• They occur frequently

• They are linked to global warming

• They are a major threat to life