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Underwater Microphone Captures Honshu, Japan Earthquake

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kpete Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 05:20 PM
Original message
Underwater Microphone Captures Honshu, Japan Earthquake
 
Run time: 01:55
https://www.youtube.com/watch?v=4rWDrZIucAQ
 
Posted on YouTube: April 12, 2011
By YouTube Member: NOAAPMEL
Views on YouTube: 301
 
Posted on DU: April 14, 2011
By DU Member: kpete
Views on DU: 923
 
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RKP5637 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 05:33 PM
Response to Original message
1. Eerie! Thanks for posting! n/t
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Paradoxical Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 08:30 PM
Response to Reply #1
4. Wrong spot.
Edited on Thu Apr-14-11 08:31 PM by Paradoxical
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RKP5637 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 09:32 PM
Response to Reply #4
6. LOL
:rofl:
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AtheistCrusader Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 05:44 PM
Response to Original message
2. Arrival of P-Waves, then lull, Arrival of S-waves?
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Paradoxical Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 08:31 PM
Response to Reply #2
5. I believe the first two arcs are the P and S waves.
Edited on Thu Apr-14-11 08:32 PM by Paradoxical
The final is a surface wave propagated through the ocean.

Could be wrong though as I am not a geophysicist.
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Billy Burnett Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 06:09 PM
Response to Original message
3. I'm not sure how this was technically achieved, but, OK.
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Paradoxical Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 10:03 PM
Response to Reply #3
7. Sound is nothing more than alterations in pressure.
An earthquake creates a pressure wave that spreads out as it travels through the Earth's crust and along the Earth's surface.

Hydrophones, just like microphones, pick up the pressure differentials created from those pressure waves and translates that into sound.
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