predicting a volcanic eruption Flashcards
what are the six ways we can predict a volcanic eruption?
seismometers
tiltmeters, GPS satellites and lasers
spider robots
thermometers
chemical analysis of water
data analysis
how can we use a seismometer to predict a volcano?
measure seismic waves before and during an eruption
how can tiltmeters, GPS satellites and lasers be used to predict a volcano?
monitor changes in landscape as volcanos tend to swell near an eruption
how can we use spider robots to predict a volcano?
monitor gases escaping from a volcano
they often have increased release of sulphur dioxide near an eruption
how can we do a chemical analysis of water to predict a volcano?
in local river and lakes near volcanos as they release minerals which seep into the surface and ground water before and during an eruption
how can we use a thermometer to predict a volcano?
measure temperature as volcanos become hotter when magma starts to rise through the main vent
how can we use data analysis to predict a volcano?
looking at past history of eruptions to identify patterns of activity
