How do satellites predict volcanoes and earthquakes?

Satellites predict volcanoes and earthquakes by using remote sensing technology to monitor changes in the Earth's surface. Instruments such as Synthetic Aperture Radar (SAR) detect ground deformation, while thermal imaging can identify heat anomalies associated with volcanic activity. Additionally, GPS stations on satellites measure subtle shifts in tectonic plates, providing data on stress accumulation that may lead to earthquakes. By analyzing these changes, scientists can assess potential volcanic eruptions and seismic events.