Greek officials are warning those on the popular tourist island destination of Santorini to stay alert in the coming days due ...

Yellowstone's magma system shows new activity, with the northeast sector possibly hosting future volcanic activity.

Scientists in Iceland say there is an increasing likelihood that a volcano, which has erupted several times since the end of ...

Schools on the Greek island of Santorini have been told to close on Monday following an increase in seismic activity in ...

Bison may seem calm, but they are one of Yellowstone National Park’s most dangerous animals. Tourists who get too close risk ...