Home > Natural Disasters > Satellite Image Shows Ash Plume Drifting From Krakatoa

Satellite Image Shows Ash Plume Drifting From Krakatoa


By Mark Dunphy – “A newly released NASA satellite image shows an ash plume drifting from a volcano that produced one of the largest eruptions in modern history.

Anak Krakatau (also known as Krakatoa), a volcanic island in the Sunda Strait between the islands of Java and Sumatra in Indonesia, has been intermittently active for the past several decades.

The island exploded in 1883, killing approximately 40,000 people, although some estimates put the death toll much higher. The explosion is considered to be the loudest sound ever heard in modern history, with reports of it being heard nearly 3,000 miles (4,800 km) from its point of origin. The shock wave from the explosion was recorded on barographs around the globe.

On July 31, 2011, a wispy ash plume rose above the volcano and drifted west… The natural-colour satellite image was acquired by the Advanced Land Imager (ALI) aboard Earth Observing-1 (EO-1). Dark gray areas of Anak Krakatau are composed principally of lava flows deposited in the 1970s, ’80s, and ’90s. These flows are topped by a young cinder cone near the center of the island. Green vegetation covers older lavas along the eastern coastline.” Read more.

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