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 ...

The searing hot plumes of ash rising above explosive volcanic blasts often burst with lightning storms, the largest of which rival the most powerful thunderstorms known on Earth. Now the most complete ...

Volcanic eruptions tend to evoke images of flowing molten lava and giant ash plumes, but when an underwater volcano off Tonga began a major eruption on Jan. 13, it was accompanied by one of the ...