Ok, it’s not the newest of news, but I only just saw this for the first time this morning. It appears to me the eruption cloud itself is even faster than sound as you can see the shock wave overtake it early in the eruption as the cloud rises.

Easy maths challenge for the partners: How far away the eruption site was the videographer? (you can use the YoutTube time scale as reference).

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One thought on “Sound Shock Wave Approaching

  • 2016/06/07 at 09:51
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    If you’re not sure you can make an estimation from these values:
    a) less than 1000 metres
    b) between 1000-2000 metres
    c) between 2000-4000 metres
    d) more than 4000 metres away

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