psmeca(1gmt) on Linux
The text ca50a0b6c5e3, as Debian 7 (Wheezy) shipped it.
Plot focal mechanisms on maps
Flags it lists
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-: -
-B -
-D -
-E -
-G -
-H -
-K -
-L -
-M -
-N -
-O -
-P -
-T -
-U -
-V -
-W -
-X -
-Y -
-Z -
-c -
-e -
-g -
-o -
-p -
-t -
-z