Eruption

A lahar, which is essentially a mudflow filled with rock particles, can reach speeds as high as 120 miles per hour.

The most violent eruption of the volcano in decades has left dozens killed and hundreds injured.

"There are injured, burned and dead people."

A tide of molten rock has turned residential streets in Hawaii into a volcanic wasteland as residents flee a surge of lava heading towards them.

The first report of an eruption-related injury from the active Kilauea volcano in Hawaii occurred Saturday after a homeowner's lower leg was "shattered" by a "lava bomb."

Beautiful, but dangerous.

The latest dramatic photos of the eruption of Hawaii's Kilauea volcano show towering ash plumes and red hot lava flows.

The lava lake at Kilauea's summit has been receding and that has scientists worried.

Satellite imagery is helping scientists track fissures and gas emissions during the eruption.

Dramatic photos show lava flows consuming cars and homes in residential areas on Hawaii's Big Island.

Hawaii's civil defense service said 26 homes had been destroyed by the eruption as of Sunday evening.

Kilauea has technically been erupting since 1983 but has recently become much more active.

The Japanese Meteorological Agency has warnings out to keep people away from the crater itself, but remotely operated news cameras can ignore them.

Scientists have never been able to separate the sound of thunder from the rest of an eruption's clatter.

Just one microscopic piece of volcanic glass was key to the discovery.

The eruption was the largest in years.

As a warning system, it won't work everywhere, but at certain volcanoes, sounds we can't even hear could be a crucial eruption clue.

The crystals carry a memory of environmental changes the way trees do with their rings.

The volcano has the potential to turn deadly.

The concern surrounds volcanoes in the U.S., Mexico, Japan and elsewhere.

"Man, the changes would be so much bigger than anything we've ever seen."

Using a network of thousands of monitors, geologists realized New England isn't as peaceful as it looks.

Indonesian authorities have ordered evacuations around Agung.

Indonesia's Disaster Mitigation Agency set up an exclusion zone and ordered people to "immediately evacuate."

What scientists are monitoring, what happened last time it erupted and, of course, how to pronounce that mouthful.

Indonesia's disaster mitigation agency said people should stay at least 3.7 miles from the volcano.

And someday soon, we're going to regret it.

When it comes to eruptions, everything is unpredictable.

At the time, volcanoes in Iceland were erupting 50 times more often than today.

"The research did not analyze the likelihood that another supereruption at Yellowstone would occur. Period."