Listening to the 2011 Tōhoku Earthquake
March 7, 2012 2:10 PM Subscribe
posted by Mercaptan (14 comments total)
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What does a magnitude 9.0 earthquake sound like
? Researchers sped up low-frequency ground waves
recorded during the 2011 Tōhoku earthquake, bringing them within range of human hearing. Hear the mainshock
from just off the coast of Japan. And how it "sounded" in California
The mainshock needs no introduction, but you can also hear aftershocks following it as sharp firecracker-like pops afterwards. And if you thought it was loud, the mainshock was actually trimmed to 1/50th of its power so you could still hear the aftershocks. From the California recording, you hear the thunder-like boom from the Japanese earthquake, followed by a crackling noise which is the San Andreas fault shifting in response. This is known as distant triggering
Additional sound and animation from the earthquake is available
, along with Matlab code to convert seismic data into sound files. More earthquake "sounds"
from the USGS.