As Medina has grown during the past three decades, parts of the Saudi city are built atop relatively young lava flows.
Published Feb 25, 2019
The Holuhraun lava field in Iceland continues to grow.
Published Jan 8, 2015
Part of the back-arc volcanism of the Andes, this complex landscape formed over 300,000 years.
Published Dec 30, 2012
A jet black plateau in central Libya harks back to a time when lava flowed across the dry landscape.
Published Apr 28, 2016
A team of NASA scientists headed to Holuhraun because the volcano has geologic cousins on Mars.
Published Oct 9, 2018
For now, the eruption at the Icelandic volcano has come to an end.
Published Apr 10, 2015
Acquired April 17, 2010, this natural-color image shows SP Crater and its associated lava flow in the San Francisco Volcanic Field of northern Arizona.
Published Feb 27, 2011
Although the basaltic rock formed a hard crust, the flow is likely hot enough to prevent snow from building up on top.
Published Nov 9, 2016
This detailed astronaut photograph depicts a portion of the Gila River channel in south-central Arizona. The northernmost boundary of the Sentinel Volcanic Field is visible in the image, recognizable by the irregular flow fronts of thin basalt lava flows. Active agricultural fields along the Gila River are a rich green set against the surrounding desert.
Published Jul 28, 2008
Fresh lava flows radiate from Kilauea’s Pu’su ’O’o, crater, as the Volcano’s longstanding eruption continues.
Published Nov 13, 2011
Fresh lava flows cover the slopes of Hawaii’s Kilauea Volcano.
Published Nov 4, 2010
In early November 2008, a volcano erupted in the Erta Ale Range in northeastern Ethiopia, producing a fresh lava flow.
Published Nov 19, 2008
East of the Andes, the volcanic field is a product of complex geological processes.
Published Jan 30, 2012
Fresh lava flows are difficult to distinguish from the barren rock of Tolbachinsky Dol, a volcanic plateau.
Published Jun 9, 2013
A 1666 eruption in what is now the northeast corner of Lassen Volcanic National Park flattened forests and created a new lake.
Published Mar 11, 2018
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
