Volcano's screams may explain eruption's

[Still Waters]

Several volcanoes erupted in 2009 – but only one screamed in the process. Its unique guttural howls provide an unrivalled glimpse into the heart of a volcanic eruption, and may hold clues to the driving forces that cause volcanoes to blow their tops.

http://www.newscient...ml#.UePWA6xUwdU

[Sir Wearer of Hats]

... well that's unsettling.

Especially if you've seen the "Inferno" story from Doctor Who, where the Earth does scream, people get infected with monster goo and then the planet kersplodes.