January 18, 2022 10:00 pm

A “wolf” wakes up at night

Francisco Martin Leon 2 min
Night image of January 7, 2022 showing the glow of the volcano

The picture, acquired by the VIIRS “day-night band” at 1:20 am local time (7:20 UTC) on January 7, 2022, shows lava spewed by Wolf volcano, at the northern tip of Isabela Island. The largest island in the Galapagos archipelago It is located approximately 1,100 kilometers off the west coast of Ecuador.

According to the Geophysical Institute of Quito, the volcano began to erupt late on January 6, sending incandescent lava flows down the flanks of the volcano and expelling clouds of ash up to about 3,800 meters. Later, on January 7, the MODIS sensor on NASA’s Terra satellite acquired an image (below) of the column stretching west over the Pacific Ocean.

Natural color image of January 7, 2022 according to the Terra satellite

Wolf is the largest and highest volcano in the Galapagos Islands. It last erupted in May and June 2015, with an eruption rated 4 on the Volcanic Explosivity Index (Volcanic Explosivity Index , VEI) (range 0 to 8). One of the volcano’s first eruptions, in 1797, was the first documented historical eruption in the Galapagos Islands.

Isabela Island is home to the critically endangered pink land iguana. The isolation of the islands and their location at the confluence of major ocean currents gave rise to unique species such as the land iguana, the giant tortoise, and many varieties of finches. The Galapagos archipelago is a UNESCO World Heritage site.

Images of NASA Earth Observatory by Joshua Stevens, using VIIRS day-night band data from the Suomi National Polar Orbiting Association and MODIS data from NASA EOSDIS LANCE and GIBS / Worldview. Sara E. Pratt Story.

NASA Earth Observatory


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