When a volcano first erupts
, ten Brink says, it grows large very quickly.
Caption: The Bardarbunga volcano in Iceland erupts
on September 4.
If the volcano were to erupt
today, scientists predict that the resulting ash cloud would affect areas 1,000 miles away, leaving two thirds of the entire US uninhabitable.
As it erupts
, Kilauea emits--tons of air pollutants each day.
around every 60 years but has not done so since 1918.
Relations between Egypt's Muslims and mainly Coptic Christians are usually calm but can become strained and sometimes erupt
into violence over issues such as inter-faith relationships and land.
Scientists are closer to being able to predict when volcanos will erupt
, thanks to work at a North university.
Mount Vesuvius erupts
and buries Pompeii and the neighboring town of Herculaneum.
Underwater volcanoes, called seamounts, occur throughout the ocean wherever magma, melted rock inside the Earth, rises to the sea floor and erupts
But if a volcano erupts
in 2,000 years, that may not look good for the people living at that time.
htm) Mount Sinabung: Sumatra Volcano Erupts
Again as Thousands Flee Homes [PHOTOS]
When the molten rock erupts
, it also releases loads of toxic gases, including sulfur dioxide.
Since then, Mount Saint Helens has been in what scientists call an active stage, or a long period of time during which a volcano sporadically erupts
For example, the first permanent molar, which erupts
at around 6 years in modern humans and at about 3 1/2 years in apes, erupted
between 4 and 4 1/2 years in H.
When a sunspot flares, a cloud of radiation (a form of high-energy waves or particles) erupts