Philippines volcano danger zone in focus

Map of Mount Mayon danger zone based on Sentinel-2 and COSMO-SkyMed interferometric analysis (e-GEOS)

14 February 2018

From the emergency mapping team at e-GEOS we get this view of the ongoing eruption at Mount Mayon on the big Philippines island of Luzon. A month ago the Philippines raised its alert level for the country’s most active volcano just ahead of a sporadic eruption event that began on 15 January and which is feared may last many months. Tens of thousands of people have been evacuated and the alert level remains at 4 on the government’s 5-point scale, prohibiting their return.

This image shows the lava flow and ash area in the danger zone, based on visual interpretation of satellite images; estimated accuracy is 20m CE90 – that is, a minimum of 90% of the points measured have a horizontal error of less than 20m. The red box compares COSMO-SkyMed radar images from 16 and 28 January; the yellow box is based on a Sentinel-2 image of the volcano caldera.

E-GEOS is a Telespazio-Italian Space Agency joint venture that markets data from the four-satellite COSMO-SkyMed constellation.