Hi,
Thanks for using out Plugins.
Unfortunately, we do not have a feature to monitor revisions by email.
However, events are a Custom Post Type in WordPress so another plugin might be able to help out.
This plugin might work:
Email Post Changes
Note: The events do not have revisions as revisions do not save custom fields so most of the data would not be saved.
There is not much we can do to help out on this customization, but if you have any follow up questions let me know.
Thanks