Land Shark

Remember the Saturday Night Live "Land Shark" skits in the wake of the "Jaws" movie hysteria?
You'd just be hanging out in your apartment, far away from the ocean, far away from danger, when in through your front door came:

Land Shark
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Well, here's the King Cove, Alaska equivalent, just hanging out in a warehouse (fortunately empty at the time), when in through the door comes:

Here are videos from two other security cameras:

Educational content?  Well, okay, this definitely falls into the "Godzilla vs. Various Manmade Infrastructure" category of "fun" avalanche videos.