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  2. 1883 eruption of Krakatoa - Wikipedia

    en.wikipedia.org/wiki/1883_eruption_of_Krakatoa

    The third explosion has been reported as the loudest sound in history. [6] [7] [8]: 602 [4]: 79 The loudness of the blast heard 160 km (100 mi) from the volcano has been calculated to have been 180 dB. [9] Each explosion was accompanied by tsunamis estimated to have been over 30 metres (98 feet) high in places.

  3. This is the loudest recorded sound in the history of Earth - AOL

    www.aol.com/news/loudest-recorded-sound-history...

    The post This is the loudest recorded sound in the history of Earth appeared first on BGR. To call sound an important part of human life would be an understatement. It’s so important, that MIT ...

  4. Chrysler Air-Raid Siren - Wikipedia

    en.wikipedia.org/wiki/Chrysler_Air-Raid_Siren

    The operator's job was to start the engine and bring it up to operating speed, then to pull and release the transmission handle to start the wailing signal generation. The Chrysler Air Raid Siren produced the loudest sound ever achieved by an air raid siren. [1]

  5. List of unexplained sounds - Wikipedia

    en.wikipedia.org/wiki/List_of_unexplained_sounds

    Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.

  6. Krakatoa - Wikipedia

    en.wikipedia.org/wiki/Krakatoa

    A thundering sound was heard from the mountain Batuwara [now called Pulosari, an extinct volcano in Bantam, the nearest to the Sunda Strait] which was answered by a similar noise from Kapi, lying westward of the modern Bantam [ is the westernmost province in Java, so this seems to indicate that Krakatoa is meant]. A great glowing fire, which ...

  7. Guinness World Records 2023: The loudest purr and world’s ...

    www.aol.com/guinness-world-records-2023-loudest...

    Bella, a cat from Huntingdon, Cambridgeshire, broke the Guinness World Record for the loudest purr in October. Measuring 54.6 decibels, the purr was equivalent to the volume of a boiling kettle.

  8. Loudest band - Wikipedia

    en.wikipedia.org/wiki/Loudest_band

    Loud sounds have long been known to cause damage to ears. In Norway, this fact was proved for coppersmiths as far back as 1731. [44] Acoustic instruments may represent a risk for hearing damage, especially with lengthy exercising in rooms with high reverberation. [45] With powerful amplifiers and loudspeakers, the sound level and risk are ...

  9. NASA offers explanation for bizarre 'trumpet noise' phenomena

    www.aol.com/news/2015-05-22-nasa-attempts-to...

    Now NASA is stepping in to provide some insight into what could actually be causing this scary pattern. NASA scientists believe the ominous noises could potentially be the "background noise" of ...