Natural disasters cause thousands of deaths and property worth millions of rupees is lost every year throughout the world. Earthquakes and tsunamis resulting from large earthquakes under the sea are of particular concern because they generally occur with very little or no advance warning [1]. Almost all earthquakes are preceded by physical processes which are commonly known as earthquake precursors [1]. An instrumentation system is presented here for the detection of the variations of these precursors which change well before the event. It consists of a sensor coupled to an embedded system to enable precise detection of variation in physical parameters. This helps us to interface it with the microcontroller through the related software and send an alarm in the audio and visual form when the parameters exceed beyond certain critical threshold. The measurements of the dynamic variations of the parameters indicate a departure from the routine values. The instrumentation system allows a comparative monitoring of such parameters with previously set standards along with an alarm system to trigger off during exceptional variations. This alarm enables us to put in place the preventive safety measures. The instrumentation includes the vibration sensor geophone as the predominant sensor for detecting the relative parameters from the simulations of the earthquake.

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