Nabro: A closer look at a neglected volcano
Nabro volcano erupted on June 12, 2011 apparently for the first time in recorded history.
The volcano is located in Eritrea and forms a larger complex with the Mallahle caldera to the southwest.
The following photo, taken by astronauts (cosmonauts?) aboard the ISS, show the large horseshoe-shaped caldera extending 8 kilometers (5 miles) in diameter. The opening to the southwest seems to have formed as a result of a major lateral collapse. Two infant calderas sit within the main basin.
The volcano was still erupting, though less vigorously, according to Toulouse VAAC, as of posting.
Nabro Volcano photo taken from ISS on January 30, 2011. Astronaut photograph ISS026-E-23526. Nabro has spewed large amounts of SO2, reportedly the highest levels ever detected from space, according to preliminary estimates from NASA/GFSC. Source: NASA-EO. Click image to enlarge.
Fire Earth 