A free app for Android, by Mystic Mobile Apps GPS Tools.

The software measures the strength of vibrations, tremors, earthquakes, as well as the vibrations of the human body and any other things around using the accelerometer built into your phone.

The app offers a graph to track ground motion at the measurement spot.

With the help of the app, you may identify and capture seismic waves produced by earthquakes, volcanic eruptions, avalanches, and other seismic activity sources.

The z-axis is perpendicular to the Earth’s surface, while the x- and y-axes are parallel to the surface. The waves are shown as a function of time and distance along these three Cartesian axes.