Q: How to increase the verbosity of the modules (scautoloc, scautopick, scevent, ...) ran by package trunk?
A: You have two options:
Increase the "Log level" using "seiscomp config" -> Edit global parameters -> trunk -> Log level
Set the global "Log level" to 2 (default) and increase the log level in the configuration file of one/all module(s)
2.1 All modules
$HOME/.seiscomp3/global.cfg
logging.level = 3
2.2 Particular module
$HOME/.seiscomp3/appname.cfg
logging.level = 3