Earthquake Glossary - hertz (Hz)

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  • hertz (Hz)

    Hertz (Hz) is a unit of measurement named in honor of Heinrich Hertz, the German physicist who in 1887 first produced electromagnetic waves. Expresses the frequency in cycles per second; 1 Hz = 1 cycle of rise and fall of a wave per second .


    hertz (Hz)

    Plot showing 440 Hertz and 880 Hertz.