(Some volcanoes are still active). German scientist Alexander von ... stream of European adventurers and naturalists drawn to the Andes' soaring peaks and clear skies. To this day, tourists ...

"These are signs that the volcano is active, it has magma, what's inside is moving and this can lead to a moderate-sized event in the future," explained Ayaz Alam, a geologist and professor at the ...

After evaluating the 111 active volcanoes scattered across Japan, a research committee announced on Sept. 25 that it identified eight needing further investigation based on several factors.