Right now, some of the world's more than 1500 active volcanoes are fuming, burping, trembling, spurting, shifting, bulging, oozing, or maybe even blowing their top. Get a brief rundown on volcanic stirrings from around the globe at the Weekly Volcanic Activity Report. The site charts new and continuing “unrest” at places like the notorious Soufrière Hills volcano on the Caribbean island of Montserrat, where eruptions beginning in 1995 destroyed the capital city and drove more than half of the population into exile.
Compiled from scientific reports and news articles, this joint project of the Smithsonian Institution and the United States Geological Survey also provides maps to get you oriented and a link to a photo-packed USGS glossary of volcano terminology. You can also reach the Smithsonian's monthly roundup of volcanic activity, which offers a more thorough analysis of each event.