Sympathetic Trigger:
When an avalanche descends, it releases huge amounts of energy.
Especially in very unstable conditions, the resulting vibration
is transmitted through the ground or snow and can trigger avalanches
on other nearby slopes. Don’t confuse sympathetic trigger
with related terms of “remote” trigger, meaning
an avalanche triggered by a person some distance away or “stepping
down” where a smaller avalanche breaks down into a deeper
weak layer. Sympathetic triggers usually mean that the snowpack
is especially unstable and you can trigger other avalanches
easily.
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