Sulphur dioxide concentrations on 6 October 2021

Atmospheric sensors on satellites can also identify the gases and aerosols released by the eruption, as well as quantify their wider environmental impact. This image shows the sulphur dioxide emissions from the eruption on 6 October captured by the Copernicus Sentinel-5P satellite, moving over the Atlantic Ocean towards Central America.

Read full story: La Palma volcano: How satellites help us monitor eruptions