WordPress at a glance
action is not described

populate_options action-hook . WP 2.6.0

Fires before creating WordPress options and populating their default values.

Usage

add_action( 'populate_options', 'action_function_name_7736' );
function action_function_name_7736(){
	// action...
}

Where the hook is called

populate_options()
populate_options
wp-admin/includes/schema.php 359
do_action( 'populate_options' );

Where the hook is used (in WP core)

Does not used.