Volcanic management Flashcards
1
Q
Prediction
A
- Volcanic eruptions tend to follow weeks of seismic activity and other warning signs
- Generally successful
2
Q
Seismographs and seismometers
A
- Monitor volcanoes
- Warnings of imminent eruptions issued
3
Q
Ground deformation
A
- Measured using tiltometers and laser-based electronic distance measurement
- Bulging = raising magma
4
Q
Magnetometers
A
- Upward movement of iron-rich magma
- Changing magnetism within volcano - common indiction of rising magma
5
Q
Hydrological instrumentation
A
- Rising groundwater temp and gas content