Question

Why do patrols certainly cause avalanches?

Answer 1

Earthquakes can set off avalanches, but much smaller vibrations can trigger them as well. A single skier can cause enough vibrations to set off a slide. ... At some ski areas, patrols use explosives to set off avalanches. Or they may blast hazardous slopes with a cannon to shake loose any large, new accumulations of snow.

Answer 2

In addition to the threat to human life, avalanches can cause tremendous damage to buildings and property. So, ski patrols and other organizations usually take steps to prevent major avalanches. One technique is to deliberately trigger small, controlled avalanches when no one is on the slope. i hope this helped <3