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What a 9.0 Magnitude earthquake sounds like

blackcatgrowl

By blackcatgrowl,
in Huddle Lounge

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blackcatgrowl Newbie

blackcatgrowl

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Welp, playing around with this using Audacity, I slowed it down from x16 speed to x4 speed. It's audible still, but not by much. Then I slowed it all the way down. There is maybe some increase in a really low rumble... but it's really hard to tell apart from background noise.

But keep in mind, that this sound crossed the pacific and then echoed around! And good lord... it goes on and on... never thought it took so long for two tectonic plates to slide around violently.

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cookinwithgas Veteran

cookinwithgas

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As a former submarine sonarman....

It would have been a continuous, very low rumble - elevated background noise. Since it would have been random, it definitely would not have been classified as anything. There isn't any narrowband to analyze, and of course the spread of the bearing of the sound would have immediately been known to have been fairly wide.

Back in the day we heard stuff like this (but not has long) often and classified it as geologics (as opposed to fish noises which were biologics).

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Matt Foley Newbie

Matt Foley

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As a former submarine sonarman....

It would have been a continuous, very low rumble - elevated background noise. Since it would have been random, it definitely would not have been classified as anything. There isn't any narrowband to analyze, and of course the spread of the bearing of the sound would have immediately been known to have been fairly wide.

Back in the day we heard stuff like this (but not has long) often and classified it as geologics (as opposed to fish noises which were biologics).

You were a Jonesy?

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