Volcanic Predictions

Question 1

Spectrometers

Answer 1

Volcanic emissions may increase before an eruption. Spectrometers can be used to measure the amount of sulphur dioxide gas that is begun g emitted by a volcano

Question 2

Seismometer

Answer 2

Before an eruption, magma collects in the magma chamber. The movement of magma can cause earthquakes. These can be measured by seismometers

Question 3

Tilt meter and geodimeters

Answer 3

The shape of a volcano may change in the build up to an eruption due to magma gathering in the magma chamber and vents. Tiltmeters and geodimeters can measure any changes in the slope of a volcano.

Question 4

Thermometer

Answer 4

Water temperatures can rise before an eruption. A thermometer can be used to measure this. Water levels may also change if magma oozes into the floor of a river of lake on the volcano