Tectonic hazards

Question 1

How are earthquakes monitored?

Answer 1

Foreshocks using seismometers and GPS.
Radon using radon detection devices.

Question 2

How are volcanoes monitored?

Answer 2

Changes in shape of ground/volcano using tiltmeters.
Radon and sulphur gas using gas trapping bottles.
Earthquakes near magma chambers using seismometers.
Ground surface and river temps suing thermal heat sensors.

Question 3

How are earthquakes predicted?

Answer 3

It is extremely difficult to predict the time, location, date and exact location of an earthquake.

Question 4

Protection against earthquakes.

Answer 4

Building and transport infrastructure. retrofitting for example, using rubber shock absorbers. Very expensive.
Sea walls in case of tsunamis.

Question 5

Planning for earthquakes.

Answer 5

Practice drills.
Preparing emergency supplies and location of evacuation centres.
Securing objects/furniture.

Question 6

How are volcanic eruptions predicted?

Answer 6

Easier to predict than earthquakes because they give advance warning signals before erupting.

Question 7

Protection against volcanic eruptions.

Answer 7

Buildings cannot be designed to completely protect against eruption impacts.
Evacuation instructed by authorities.

Question 8

Planning for volcanic eruptions.

Answer 8

Evacuation
Exclusion zones
Education to know what to do
First-aid training