How sensitive is your phone?

Your phone has a motion sensor. We measure how small a shake it can feel. Your result helps a real research project about earthquakes.

1. 1. Put the phone on a table for 30 seconds
2. 2. Answer 8 quick questions (just tap)
3. 3. See how your phone ranks

Anonymous: no name, no phone number. By tapping Start you agree that your phone's motion recording and your answers are used for a school research project about earthquakes.