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Amplified piezoelectric accelerometers, better known as IEPE (or by the PCB Piezotronics, Inc. brand name, ICP®) are widely used in industry, civil, and military applications. In this paper, we will focus on a particular type of accelerometer and pressure sensor with high sensitivity, used for precisely measuring very small levels of vibration or pressure. These sensors find various applications in vibration control of machinery used for semiconductors and microchip production, as well as in many civil applications. The measurement system described in this paper was intended for vibration control to ensure good microchip quality, but also made it possible to measure an earthquake event that occurred in another country far from Taiwan, where the monitoring took place. In fact, technicians involved were informed of the earthquake in real-time, even before the international media.