Image Credit: NASA/Jet Propulsion Laboratory.
Teide Volcano is located on the island of Tenerife in the Canary Islands, off the coast of Morocco in the eastern Atlantic. With a height of 12,199 ft., Teide is the third-highest volcano on Earth, after Mauna Kea (13,796 ft.) and Mauna Loa (13,680 ft.) on the island of Hawaii.
The summit crater of Teide is clearly visible left of the image center. The crater contains lava flows of various ages and degrees of roughness that appear in shades of green and brown in the image. Different vegetation zones, both natural and agricultural, are detected by the radar as areas of purple, green, and yellow on the volcano's flanks.
Teide has erupted only once in the 20th century, in 1909. It is considered a potentially threatening volcano, however, due to its proximity to the city of Santa Cruz de Tenerife, shown in this image as the purple and white area on the lower-right edge of the island.
The area shown measures 55.8 miles by 33.8 miles.