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Internet Message Format  |  1993-01-25  |  672 b 
  1. Path: sparky!uunet!elroy.jpl.nasa.gov!grian!puffin!n6ume2!dorothy
  2. From: dorothy@n6ume2.uucp (Dorothy Darby)
  3. Newsgroups: ca.earthquakes
  4. Subject: Explanation of Magnitudes
  5. Message-ID: <9301242123.FS.131@n6ume2.uucp>
  6. Date: Sun, 24 Jan 93 21:23:43 EST
  7. News-Software: FSUUCP 1.3r1
  8. Reply-To: ddarby@eis.calstate.edu
  9. Distribution: ca
  10. Organization: PSN Pasadena
  11. Lines: 13
  12.  
  13. I have two questions:
  14.  
  15. 1.  I know that Menlo uses Duration Magnitudes when posting their
  16.     reports, and the NEIC uses both MB (Body Wave) and MSZ (Vertical
  17.     surface wave)....What does Berkley use when reporting a magnitude
  18.     for an event?
  19.  
  20. 2.  What is the difference between all of them?
  21.  
  22.  
  23. Dorothy
  24.  
  25.  
  26.