This dormant volcano suddenly fired up.
The Nabro volcano has not erupted in recorded human history, but lava flows near the volcano are relatively recent geologically.
Many of the procedures we tried had never been used before on an active explosive volcano.
In every direction we could see the tiered profiles of one volcano after another, looming from the misty horizon.
The volcano made it above that surface only a million or so years ago, since when the island has grown to about 100 square kilometres.
The Alaskan near-symmetrical volcano is one of the most active in the Aleutian Arcm havng erupted six times in the past three years.
Since 2007, frequent acid rain showers caused by activity at the volcano killed or damaged much of the vegetation to the southwest of the summit, leaving the area brown and orange.
The volcano erupted molten lava.
The volcano spurted (out) molten lava.
Flames blazed out from the crater of the volcano.
A cloud of ash from the volcano has drifted southeast across Europe, grounding thousands of flights and stranding passengers worldwide.
Multiple ash layers suggest that eruptions killed countless animals from time to time. But when the volcano was inactive, the site supported a wooded area.
The eruption seems to have started with the volcano spitting out lumps of rock up to 2 metres across, before releasing an enormous pyroclastic flow - a fast-moving gush of hot gas and rock.
Volcano a dormant volcano may explode at any time.
A dormant volcano may erupt after an interval.
For example, allegedly, jumped into volcano to proof that he was a god.
Perhaps use paper mache to make a "volcano" and watch it erupt using baking soda and vinegar.
I can still see it sitting on the stove in all its chipped white-and-blue-enameled glory, its contents bubbling, steam rising as if from an active volcano.
The volcano spewed molten lava.
There are several ways that the damage wrought by Icelands' volcano might be mitigated.
What's worse is the volcano isn't even out of ammunition, although scientists say volcanic activity has slowed down in recent weeks.
That volcano is slumbering.
The erupting volcano was an awe-inspiring sight.
The volcano's Pu 'u 'o 'o crater collapsed on Saturday, and a 0.33-mile-long (0.5-kilometer-long) fissure ripped open on a separate region of the volcano.
An extinct volcano can no longer erupt.
The active undersea volcano could allow scientists to understand how life on Earth may have originated in such underwater environments.
He went to the Congo to examine a new volcano.
A woman stuck at Dublin airport yesterday said she had also been stranded by the first ash cloud from Icelandic volcano Eyjafjallajokull which halted flights for a week last month.
If the exercise two years ago did not capture the range of problems that an Icelandic volcano might cause, it did show that the general situation was entirely foreseeable.
Vesuvius is an active volcano.
The volcano is situated in the remote Southern Red Sea Region of Eritrea, a thinly populated area.
Trekkers peer from the crater's rim at the Rinjani volcano in Lombok, Indonesia.
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