It is one of the great tectonic features of Africa—caused by fracturing of the Earth’s crust—and includes the classical geologic structures associated with a rift valley.
Published Apr 2, 2012
In early November 2008, a volcano erupted in the Erta Ale Range in northeastern Ethiopia, producing a fresh lava flow.
Published Nov 19, 2008
Acquired August 26, 2000, this false-color image shows part of Oslofjorden, a rift valley in southern Norway. At the northern tip of the rift valley sites Norway’s capital city.
Published Nov 14, 2010
Iceland is one of the few places where people can explore the Mid-Atlantic Ridge on dry land.
Published Feb 11, 2020
Fresh lava flows cover the slopes of Hawaii’s Kilauea Volcano.
Published Nov 4, 2010
New features on the volcano suggest lava is reaching the surface at a new location.
Published Mar 26, 2013
Acquired March 6, 2013, this image shows a fresh lava flow on the surface of Tolbachik Volcano on the Kamchatka Peninsula.
Published Mar 12, 2013
Nabro, a stratovolcano in northeast Africa, rumbled to life on June 12, the volcano's first known eruption in recorded human history.
Published Jun 13, 2011
A team of NASA scientists headed to Holuhraun because the volcano has geologic cousins on Mars.
Published Oct 9, 2018
An eruption and an apparent new island appeared in the Red Sea in December 2011.
Published Dec 28, 2011
East of the Andes, the volcanic field is a product of complex geological processes.
Published Jan 30, 2012
