The dramatic volcanic eruption on a remote island in Indonesia's North Sulawesi province on April 17 threw a fiery-red column of lava, incandescent rock and ash as much as 3 km (2 miles) into the sky.

An image of Augustine erupting on January 13, 2006, from about 50 miles away from the volcano. Courtesy of Gerald Andrew When Mount St. Augustine in Alaska erupted in mid-January 2006 for the first ...

Volcanic lightning is a striking and multifaceted phenomenon that occurs during explosive eruptions, when vigorous interactions between fragmented ash particles, volcanic gases and environmental ...

Volcanic lightning is one of nature's most spectacular sights and now researchers are discovering more about why it happens.

An analysis of volcanic rocks has revealed large quantities of nitrogen compounds that were almost certainly formed by volcanic lightning. This process could have provided the nitrogen required for ...

Indonesian authorities evacuated residents of seven villages within a nearly four-mile radius of a volcano on the remote island of Halmahera in Indonesia after it erupted and spewed ash about 2.5 ...

Indonesia's Ruang volcano erupted several times on Tuesday with a blaze of lightning and lava. Seven airports in the area were closed, as ash had reached eastern Malaysia's airspace, CNN said Thursday ...