This morning we had a 6.7 magnitude earthquake 120 km south of us out in the Pacific. It shook and shook and shook. One of the longest quakes I've ever felt, anywhere.
Out in the barn we have a seismograph and it picked up the shaking just great. But what if you could convert that shaking into an audio file and listen to it? Well I did.
Here it is sped up about 40X. The right channel is my seismograph, the left channel is from 20 km on the other side of the volcano. Sounds good on headphones or big speakers.
Out in the barn we have a seismograph and it picked up the shaking just great. But what if you could convert that shaking into an audio file and listen to it? Well I did.
Here it is sped up about 40X. The right channel is my seismograph, the left channel is from 20 km on the other side of the volcano. Sounds good on headphones or big speakers.
Member
Joined 2009
Paid Member
Super cool!
I think it’d sound better not so fast, it’s quite scary as it is though
I think it’d sound better not so fast, it’s quite scary as it is though
Glad you liked it, it was fun to do. I tried it at different speeds and somewhere near 50X like this seems best. But I'll play around.
This is something that I've wanted to do for years, I've even asked the USGS about doing it.
The peak of earthquake energy recorded is 1 Hz, so it's all sped up and shifted up by 100X, then the pitch is left the same but the time is expanded 2X.
This is something that I've wanted to do for years, I've even asked the USGS about doing it.
The peak of earthquake energy recorded is 1 Hz, so it's all sped up and shifted up by 100X, then the pitch is left the same but the time is expanded 2X.
Nice, thank you. I found it interesting the way the global sonic impression is steadily changing along the recording. It's also interesting to listen to it at lower speeds. And when reproducing your soundtrack very slowly, close to a 1:1 timing, this soundtrack might serve very well for some decent subwoofer test ...
As for more infos about it's origin, you may also have a look here:
https://earthquake.usgs.gov/earthquakes/eventpage/us6000iv6c/executive
As for more infos about it's origin, you may also have a look here:
https://earthquake.usgs.gov/earthquakes/eventpage/us6000iv6c/executive