Assertion: order of magnitude's scale | /r/HasProperty | calibrated
Facets:
value: by defining a magnitude
type: MANNER
Source sentences:
text: The scale was calibrated by defining a magnitude 3 shock as one that produces (at a distance of 100 km (62 mi)) a maximum amplitude of 1 micron (1 µm, or 0.001 millimeters) on a seismogram recorded by a Wood–Anderson torsion seismograph.