Can sound cause an avalanche?

Question

Please supply references if available.

Answer 1

The answer is "No". It is a myth

Read this link below:

Avalanche Myths:
"Loud noises trigger avalanches"

Although it's a convenient plot device in the movies (and most recently on Jeep commercials) noise does NOT trigger avalanches. It's just one of those myths that refuses to die. Noise is simply not enough force unless it's EXTREMELY loud noise such as an explosive going off at close range. Even sonic booms or low flying helicopter trigger avalanches only in extremely unstable conditions in which natural avalanches would likely occur on their own anyway. In 90 percent of avalanche fatalities, the avalanche is triggered by the weight of the victim, or someone in the victim's party.

http://www.avalanche.org/~uac/ed-faq.htm

Answer 2

Yes, it is possible, but very unlikely, because sound carry very little energy. The smallest amount of wind would have larger effect on the snow. Avalanches reputedly started by sound, probably started by vibrations in the ground or by wind.

Answer 3

That would be a proximal trigger, but I like to blame gravity and the presence of poorly packed snow for avalanches.

Answer 4

Yes it can, if it is strong enough. Sounds are pretty much vibrations and earthquakes can emit audible vibrations that can certainly trigger an avalanche

Answer 5

Yes. Any disturbance could.