Magnitude measures the (1.)____realesed at the source of the earthquake.It is determined from the measured seismic waves on the instrument called (2.)____.The value of the magnitude is (3.)____at the focus regardless of the distance from the source to which it is being measured. Intensity measures the (4.)____of shaking produced by an earthquake at a certain location. It is determined from the (5.)____on people,human structures and the natural environment.