Vibration Meter, also known as seismograph, seismometer measures vibrations using your Androids sensors andshows reference to earthquake vibrations as classified by Mercalli intensity scale.Vibrations are shown in all directions: X, Y, Z in different colors.Place your device on stable surface and measure vibrations.Mercalli intensity scaleI. Instrumental - Not felt. Recorded by seismographs.II. Weak - Rarely felt, usually only on top floors of high buildings.III. Slight - Felt indoors, like a passing light truck.IV. Moderate - Windows, dishes, doors rattle. Like passing train.V. Rather Strong - Felt by all. Small objects upset.VI. Strong - Books off shelves. Trees shake. Isolated damage.VII. Very Strong - Difficult to stand. Many poor buildings damaged.VIII. Destructive - Significant damage. Branches broken from trees.IX. Violent - General panic. Serious damage. Ground cracking.X. Intense - Most buildings destroyed. Rails bent slightly.XI. Extreme - Rails bent greatly. Pipelines destroyed.XII. Catastrophic - Near total damage. Objects thrown into the air.