gmt-fork/doc/rst/source/events.rst

.. index:: ! events
.. include:: module_core_purpose.rst_

********
events
********

|events_purpose|

Synopsis
--------

.. include:: common_SYN_OPTs.rst_

**gmt events** [ *table* ] |-J|\ *parameters* |SYN_OPT-Rz| |-S|\ *symbol*\ [*size*]
|-T|\ *now*
[ |SYN_OPT-B| ]
[ |-C|\ *cpt* ]
[ |-D|\ [**j**\|\ **J**]\ *dx*\ [/*dy*][**+v**\ [*pen*]] ]
[ |-E|\ **s**\|\ **t**\ [**+o**\|\ **O**\ *dt*][**+r**\ *dt*][**+p**\ *dt*][**+d**\ *dt*][**+f**\ *dt*][**+l**\ *dt*] ]
[ |-F|\ [**+a**\ *angle*][**+f**\ *font*][**+j**\ *justify*][**+r**\ [*first*]\|\ **z**\ [*format*]] ]
[ |-G|\ *color* ]
[ |-L|\ [*length*\|\ **t**] ]
[ |-M|\ **i**\|\ **s**\|\ **t**\ [*val1*]\ [**+c**\ *val2*] ]
[ |-Q|\ *prefix* ]
[ |SYN_OPT-U| ]
[ |SYN_OPT-V| ]
[ |-W|\ *pen* ]
[ |SYN_OPT-X| ]
[ |SYN_OPT-Y| ]
[ |SYN_OPT-bi| ]
[ |SYN_OPT-di| ]
[ |SYN_OPT-e| ]
[ |SYN_OPT-f| ]
[ |SYN_OPT-h| ]
[ |SYN_OPT-i| ]
[ |SYN_OPT-p| ]
[ |SYN_OPT-qi| ]
[ |SYN_OPT-:| ]
[ |SYN_OPT--| ]

.. include:: events_common.rst_

Examples
--------

To show the display of events visible for May 1, 2018 given the catalog of
large (>5) magnitude earthquakes that year, using a 2-day rise time during
which we boost symbol size by a factor of 5 and wash out the color, followed
by a decay over 6 days and then a final shrinking to half size and darken the
color, we may try

   ::

    gmt begin layer
      gmt convert "https://earthquake.usgs.gov/fdsnws/event/1/query.csv?starttime=2018-01-01%2000:00:00&endtime=2018-12-31%2000:00:00&minmagnitude=5&orderby=time-asc" \
         -i2,1,3,4+s50,0 -hi1 > q.txt
      gmt makecpt -Cred,green,blue -T0,70,300,10000
      gmt events -Rg -JG200/5/6i -Baf q.txt -SE- -C --TIME_UNIT=d -T2018-05-01T -Es+r2+d6 -Ms5+c0.5 -Mi1+c-0.6 -Mt+c0
    gmt end show

See Also
--------

:doc:`gmt`, :doc:`gmtcolors`,
:doc:`plot`,
:doc:`movie`