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58 points

Fun fact, sperm whales can generate a sonar click at 230dB. Decibels are a logarithmic scale so increasing by only a few dB is basically double the volume.

A sperm whale may swim past you, think you’re interesting and give a little click to scan you, and basically stun or kill you instantly.

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12 points

Wow. For real ???

You learn something new everyday.

But yeah, I never saw divers getting stunned/ killed even when diving near whales.

It could be that it never happened, but that’s like such a high variance to have never happened.

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11 points
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i believe it’s 6 dB is 2x the sound pressure and 10 dB is 2x the perceived volume?

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10 points

Is there any example? I’ve never heard an organism (fish?) killed by whale sound wave like this

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12 points

I couldn’t find any report of a death but here is a credible source that it’s possible. Sperm whales are particularly rare of course, and intelligent enough to probably know it’s deadly, so it’s no surprise it’s rare.

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