Can sounds trigger an avalanche?
Do you have to keep your hoots and hollers to a minimum when in avi terrain? what about helicopter use when danger is "high"? Can sounds really cause an avalanche as we see in those old movies? Read the following article and find out [and if you like the scientific details,... those are in there too]
Avalanche triggering by sound: myth and truth
Benjamin Reuter and Jürg Schweizer WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland