These images, acquired by the ERS-2 and Envisat satellites in November 2002, illustrate Etna volcano during its eruptive activity. The first image is a composite made using 1.6, 0.87, and 0.65 micron wavelengths. The second image was captured using the 11 micron infrared channel. The third image was created using a combination of three bands, specifically bands 15, 9, 1. The fourth image shows the same area as the third but uses a different band combination of bands 5, 2, 1. A plume of smoke is clearly visible in each image.

• Image 1: Satellite: ERS-2, Instrument: Along-Track Scanning Radiometer (ATSR), Channels: 1.6, 0.87, 0.65 micron, Acquisition Date: 29 October 2002
• Image 2: Satellite: ERS-2, Instrument: Along-Track Scanning Radiometer (ATSR), Channels: 11 micron, Acquisition Date: 29 October 2002
• Image 3: Satellite: Envisat, Instrument: MERIS, Band combinations: 15, 9 and 1, Acquisition Date: 29 October 2002
• Image 4: Satellite: Envisat, Instrument: MERIS, Band combinations: 5, 2 and 1, Acquisition Date: 29 October 2002