To add support for locales you need to do the following (on Windows you need execute as an Administrator if jAmaSeis was installed to “Program Files”):
[1] The locale information is logged by jAmaSeis (WIndows->Log) when the program starts (i.e. “Locale: en_US”.)
[2] You can specify a different locale on the command line when running jAmasies (i.e. Portuguese “java -Duser.country=PT -Duser.language=pt -Xmx1024m -jar jAmaseis.jar”.)
[3] For more locale IDs see JDK 6 and JRE 6 Supported Locales
[4] For more Internationalization information see Java Tutorials Trail: Internationalization