Volcano monitoring techniques

Volcano monitoring involves tracking signs that indicate a potential eruption, using various tools such as seismometers to detect earthquakes and vibrations, gas sensors to measure emissions like sulfur dioxide, and satellite imagery to observe ground deformation and heat changes. Seismic activity often increases before eruptions, while deformation measurements reveal swelling of the volcano's surface. Gas and temperature sensors monitor changes in emissions and thermal activity. Together, these techniques help scientists assess volcanic activity, providing vital information to help protect communities and ensure timely alerts.