Index: bp-blogs/bp-blogs-functions.php
===================================================================
--- bp-blogs/bp-blogs-functions.php	(revision 6331)
+++ bp-blogs/bp-blogs-functions.php	(working copy)
@@ -210,7 +210,7 @@
 				'type'              => 'new_blog_post',
 				'item_id'           => $blog_id,
 				'secondary_item_id' => $post_id,
-				'recorded_time'     => $post->post_modified_gmt
+				'recorded_time'     => $post->post_date_gmt
 			));
 		}