How Scientists Predict Volcanic Eruptions

Modern volcano monitoring uses seismometers, GPS, gas sensors, satellite radar, and tiltmeters. The successful prediction of Mount Pinatubo in 1991 saved 20,000+ lives. Earthquake swarms often precede eruptions.

Ground deformation indicates magma movement. Gas emissions increase before eruptions. Satellite thermal imaging detects temperature changes.

Despite advances some eruptions like White Island 2019 remain unpredictable. The goal is to move from reactive to predictive volcano science..