Earthquakes made human life full of horrific situation because of unpredictability of disastrous phenomena.For a common people more reliance on the reports of electronic media and print media.There is a tool from which you can know that earthquakes occurring in your area.
You need smartphone android- OS or i-OS or any phone supporting vibrometer.
From Google play store you can install Tool Box app which contains a lot of utilities.For earthquake you can utilize vibrometer which comes in Tool Box app.If you open the vibrometer in your mobile you would see three lines of different axes corresponding to x,y and z co-ordinates.
To predict or know that your area is experiencing earthquake in real time;you are required to place your mobile on firm surface like ground or heavy furniture and watch for the lines in vibrometer; during earthquake the lines would have higher amplitude of deflection from -0.4 to +0.4.
The nature of vibration of earth in upward and downward can be assessed from the blue lines of z-axis.The x-axis line and y-axis line corresponds to horizontal plane vibration of the earth.Though it cannot replace a seismograph but for a common person this is a handy tool.Because many time common people sitting in a closed room with fixed articles can just feel that they are having vertigo or giddiness while they are experiencing a quake.In such scenario where the surrounding objects of your frame of reference are fixed and you experience vertigo,you can open the toolbox app which contains vibrometer and place on the ground and see the amplitude of the x y and z axes lines and can be sure even about the character of the vibration during earthquake.
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