Researchers Record Iceberg Breaking Loud as an Earthquake

Human-made sound in the world’s oceans, such as ship noise or seismic testing, may interfere with marine animals’ ability to use sound effectively for essential navigation and communication. Researchers collecting audio recordings in the Antarctic Weddell Sea have discovered that a melting iceberg can be a massive source of natural sound – in this case as loud as a magnitude-4 earthquake.

The sound can be mistaken as a stringed instrument like a double bass, or maybe some kind of truck on the …

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