The main aim of the proposed study is to design a cost effective earthquake warning sensor based on time critical electronic control module designed by using proposed hardware components in Multisim. The proposed work consists of three parts: introducing a radon sensor unit based on volumetric analysis of radon as an earthquake precursor that acquires data count over a period of 100 days and placing the upper level of the sensor in water. When the water level tilts, the hardware device immediately activates the circuit designed in Multisim. The circuit design uses readily available electronic components including a LM324N op-amp and a NE-555 timer circuit able to detect electrical and environmental characteristics and is capable to analyze low frequency components that are equivalent to movements incorporated as a result of this tilt to respond with the alarm. We present the general architecture of the circuit and design of the circuit concerned with the circuit description and operation, design flow chart and implementation of the sensor. Thirdly, we create boolean sensing range for a radon detection unit and analyze how an inner and outer circle can identify the 'Earthquake Preparation Zone' or the seismogenic zone corresponding to an earthquake occurrence.