Assertion: earthquake's magnitude | /r/HasProperty | m w
Facets:
Source sentences:
text: In addition, the body wave magnitude, mb , and the moment magnitude, M w , abbreviated MMS, have been widely used for decades.
text: This earthquake occurred on February 14, 2008, with magnitude (Mw) 6.9.
text: The formula above made it much easier to estimate the energy-based magnitude M w , but it changed the fundamental nature of the scale into a moment magnitude scale.