When Alaska's Kasatochi Volcano erupted on Aug. 7, 2008, it virtually sterilized Kasatochi Island, covering the small Aleutian island with a layer of ash and other volcanic material several meters thick. The eruption also provided a rare research opportunity: the chance to see how an ecosystem develops from the very first species to colonize the island.

Climate researchers have shown that big volcanic eruptions over the past 450 years have temporarily cooled weather in the tropics—but suggest that such effects may have been masked in the 20th century by rising global temperatures.

The building blocks of life may have emerged in volcanic eruptions on the early Earth, according to a new analysis of classic experiments performed more than fifty years ago. Using modern techniques to examine samples from the original experiments, researchers discovered previously undetectable organic compounds.

Lightning and gases from volcanic eruptions could have given rise to the first life on Earth, according to a new analysis of samples from a classic origin-of-life experiment by NASA and university researchers. The NASA-funded result is the subject of a paper in Science appearing October 17.

Scientists have exploited crystals from lavas to unravel the records of volcanic eruptions.

Colombian authorities are evacuating thousands of people after a volcanic eruption about 240 kilometers southwest of the capital of Bogota.

When Mt. Pinatubo erupted in the Philippines, in June of 1991, it blasted enough gas and dust into the air to block some of the sunlight in the atmosphere, causing the Earth’s global climate to cool for a few years.

A series of monumental volcanic eruptions in India may have killed the dinosaurs 65 million years ago, not a meteor impact in the Gulf of Mexico. The eruptions, which created the gigantic Deccan Traps lava beds of India, are now the prime suspect in the most famous and persistent paleontological murder mystery, say scientists who have conducted a slew of new investigations honing down eruption timing.

A volcanic explosion rocked a tiny Yemeni island in the Red Sea, spewing lava and ash hundreds of feet into the air and forcing Yemeni authorities to evacuate a military base. NATO and Yemeni ships Monday were searching for eight missing soldiers.

A leading expert today repeated his assertion that an Indonesian mud volcano was almost certainly manmade despite a new study claiming the eruption might have been triggered by an earthquake.

Mount Kilauea Volcano Daily Update issued May 24, 2007 07:13 HST Volcanic-Alert Level WATCH - Aviation Color Code ORANGE, Kilauea Volcano Report prepared by the Hawaiian Volcano Observatory.