Inside the Event Hub you can disable notifications for an Event.
Disabling Notifications
(a) Inside of the Event Hub, toward the top of the Event Management Panel, locate and click the ‘Options Menu’. This will open the Options drop-down menu
(b) Click the ‘Disable Notifications’ option. This will open a confirmation message on your screen.
(c) Click ‘Yes’ to confirm you would like to turn off notifications.
(d) This will add a button to the Event Management Panel, indicating Notifications are disabled for this Event.
(e) If you would like to turn Notifications back on, simply click the ‘Notifications Disabled’ button and ‘Yes’ to confirm you’d like to turn Notifications back on.