Eruption of Eyjafjallajökull Volcano, Iceland
12:30 pm
acquired April 14, 2010 download large 12:30 pm image (2 MB, JPEG, 2284x2224)
Eruption of Eyjafjallajökull Volcano, Iceland
2:25 pm
acquired April 14, 2010 download large 2:25 pm image (2 MB, JPEG, 2284x2224)

After two weeks of spectacular lava fountains and lava flows, the eruption in Iceland’s Fimmvörduháls Pass was winding down by April 12, 2010. Nearby, however, earthquakes underneath Eyjafjallajökull (an icecap-covered peak) suggested that magma was still moving in the same conduits that had brought lava to the surface at Fimmvörduháls. In the early morning hours of April 14th the Icelandic Civil Protection Department ordered evacuations of the towns and farms near Eyjafjallajökull due to a sudden increase in the amount of water in the area’s streams and rivers. Combined with rising water temperature, the increase in streamflow signaled the onset of a jökulhlaup: a flood caused by an eruption under a glacier.

Morning daylight revealed a spectacular steam plume over Eyjafjallajökull. These natural-color images were obtained by the Moderate Resolution Imaging Spectroradiometer (MODIS) instruments aboard NASA’s Terra and Aqua satellites. The top image was acquired shortly after noon, 12:30 p.m. local time. The white plume extends roughly 70 kilometers (40 miles) almost due east, rising above snow and clouds and casting a shadow to the north. The white color indicates the plume is primarily steam, unsurprising since 1,200° Celsius (2,200° Fahrenheit) lava reached the surface beneath a 200-meter (700-foot) thick glacier, which was quickly vaporized.

By 2:25 p.m. local time (bottom image) the plume reached more than 100 kilometers (60 miles) from the eruption site. At that time, the London Volcanic Ash Advisory Center (VAAC) reported ash at 20,000 feet (6,100 meters) or more.

Current satellite imagery of Iceland is posted on the MODIS Rapidfire Site.

  1. Reference

  2. Eruptions. (2010, April 15). Eyjafjallajökull. Accessed April 15, 2010.

NASA image by Jeff Schmaltz, MODIS Rapid Response Team. Caption by Robert Simmon.

Instrument(s): 
Terra - MODIS

Eruption of Eyjafjallajökull Volcano, Iceland

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