Quote:
Originally Posted by WingedKagouti
Noisy 10 is essentially only appropriate for explosions capable of levelling cities.
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That's an exaggeration, I think. Noisy 10 is 200 dB, which is powerful enough to register as an explosive shock wave. But at 190 dB, it's not a shock wave, but a very loud sound wave. And to go from 200 to 190, you have to divide the power density by 10, which means tripling the distance. So if you have 200 dB at radius 1 yard, you have 190 dB at radius 3 yards.
Now, 190 dB is nothing to laugh at! It's loud enough to rupture eardrums, and it's far past the threshold of pain. But it's not as high an overpressure as an actual explosion. Or, at least, that was what I worked out when I was coming up with that table.