In this video, you see the destructive power of a volcanic eruption a few seconds before the sound reaches the camera. You can see the shockwave interacting with the clouds before shaking the camera with the eventual bang.

SOURCE: https://www.youtube.com/watch?v=BUREX8aFbMs

via Papuan eruption: “Prepare for the shockwave, it’s coming!” | Sciencedump.

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