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November 8, 2011 - Eruption of Nyamuragira Volcano, Democratic Republic of the Congo
Eruption of Nyamuragira Volcano, Democratic Republic of the Congo Image used for Spacing Purposes
Satellite: Terra
Date Acquired: 11/7/2011
Resolutions: 1km (52.5 KB)
500m (116.6 KB)
250m (85.9 KB)
Bands Used: 1,4,3
Credit: Jeff Schmaltz

On the evening of November 6, 2011 a fissure on the flank of Nyamuragira opened, spewing fountains of lava and plumes of volcanic gas and ash in a spectacular night time eruption. Rangers at the Virunga National Park, where Nyamuragira is located, were the first to report the eruption, and described the display as a “monstrous fountain” of lava, which lit the sky up with a bright red glow. Residents of the city of Goma, about 22 miles south of the volcano, also reported a visible red glow.

On November 7, the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA’s Terra satellite captured this true-color image of the still-erupting volcano. Although the night-time glow has passed, plumes of volcanic ash and smoke cover the region to the south and west of Nyamuragira, nearly obscuring parts of Lake Kivu. The land around the volcano appears brown and gray, probably discolored by volcanic ash and possibly lava. The eruption is expected to continue for days or possibly weeks.

Located in the Democratic Republic of the Congo, Nyamuragira is a massive high-potassium basaltic shield volcano located north of Lake Kivu, and covers an area of about 800 square miles. It is Africa’s most active volcano. Between 1865 and 2011 there have been 43 confirmed eruptions, with a historical average of 3.5 years between eruptions. Since 1980, there has been an average of one eruption every two years.

The last eruption at Nyamuragira began on January 2, 2010, with lava flowing over 21 miles to the south and southwest of the volcano. The lava flows stayed within the boundaries of Virunga National Park, but the effects of ash and gas emissions were felt in Goma. Drinking water from open spring and rainwater cachements were contaminated by ash, and residents around the volcano reported deaths of domestic animals and damage to crops. At the time of this report, no damage has been reported from the current eruption.

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