This phenomena is a mass debris flow. Since it is effectively a fluid having approximately the density of rock, it may move boulders weighing tens of tons down-slope.
landslides
gust
when erosion happens....a bunch of soil, and other minerals could rush down a hillside. it is caused by maybe having no trees, then having a big rain, so the roots of the trees are not there for support so the soil just goes down the hill. it could eventually create a cliff type of formation.
rampage
It can be called a landslide.
landslides and mudslides
landslides
if someone gives you an answer like hippopimous its wrong
gust
A flash flood
Flashflood?
1a sudden, strong rush of air. 2a sudden outburst of rain, laughter, etc.
Stampede is one word.
I believe the sentence should be worded like the following:"A sudden rush of cold came over me."
Called a stampede.
noun: a sudden panicked rush of horses, cattle or other animals. verb: (of horses, cattle or other animals) rush wildly in a sudden mass panic: "The nearby sheep stameded as if they sensed impending danger.
If properly maintained, growth of plants on the slopy areas mostly don't affect. One of the things to remember is about watering the plants on the slope. Don't try for overhead watering procedures. The sudden rush of water wouldn't be good if the plants are on slope. Try to provision the water on a slow manner which may help greatly in the growth of plants. Try to cover the planting spots with mulch. This can mainly help in preventing soil erosion and help with moisture retention.