CATALOG(5Q)                   1993                    CATALOG(5Q)



NAME
     catalog - description of earthquake catalogs

DESCRIPTION
     The  Northern  California  Earthquake  Data  Center  (NCEDC)
     currently has several earthquake catalogs online.

     1.  The NCSN event catalog contains  hypocenter,  magnitude,
     and  a  multitude of other information about events recorded
     by the USGS Northern California Seismic Network from 1976 to
     the  present.  Type man ncsn.catalog for further information
     about this data.

     2.  The NCSN mechanism catalog contains  hypocenter,  magni-
     tude,  and focal mechanism information about events recorded
     by the USGS Northern California Seismic Network from 1976 to
     the  present.   Type  man  ncsn.mech for further information
     concerning this data.

     3.  The UCB event catalog contains epicenter or  hypocenter,
     magnitude, and a multitide of other information about events
     recorded by the UC Berkeley  Seismological  Laboratory  from
     1910  to  the  present.   Type  man  ucb.catalog for further
     information concerning this data.

     The program eqselect can be used to  search  this  data  and
     extract events that satisfy user-specified criteria.

     The program extract can be used  to  to  extract  additional
     phase   and  amplitude  information  for  events  that  were
     extracted with the program.


SEE ALSO
     ncsn.catalog(5), ncsn.mech(5), ucb.catalog(5),  eqselect(1),
     extract(1)



















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